Observations of the Apparent Distances and Positions of 458 Double and Triple Stars, Made in the Years 1823, 1824, and 1825; together with a Re-Examination of 36 Stars of the Same Description, the Distances and Positions of Which Were Communicated in a Former Memoir

Observations of the apparent distances and positions of 458 double and triple Stars, made in the years 1823, 1824, and 1825; together with a re-examination of 36 Stars of the same description, the distances and positions of which were communicated in a former Memoir. By James South, Esq. F.R.S. Read November 17, 1825. The Royal Society having honoured the observations of 380 double and triple stars made by Mr. Herschel and myself with a place in the Philosophical Transactions, I am induced to offer for the like distinction a fresh series. The Equatorial Instruments and Micrometers used on the present occasion, being precisely the same as those with which the preceding observations were made, the prefatory matter attached to the former communication, will be generally applicable to this. As however some of the results have been obtained in England, and others in France, the place where each series of measures was procured, accompanies the date and instrument of observation. From the 3rd of April, 1825, to the demolition of the Observatory at Passy, the micrometer of the Five-feet Equatorial was applied to the Seven-feet Instrument, in order to MDCCCXXVI. Mr. South's observations of the apparent distances obtain the advantage of higher magnifying powers. By this change they stand in order 92, 157, 181, 327, 413, 513, and 787; the commonly used power being 181: a rigorous examination assured me, that the value of the one micrometer, was also the value of the other. In the subsequent pages will be found observations of about 160 double and triple stars, hitherto (as far as I know) undiscovered: their apparent right ascensions and declinations are, I hope, generally accurate to the nearest minute: and should occasionally a greater error be detected, some indulgence will I trust be extended to me, for they were generally found at a considerable distance from the meridian, when extreme unsteadiness of the stars, and unwillingness to quit my observatory, rendered sweeping for new double stars my only mode of passing the night in it: as however they have been found on subsequent evenings from the data here given, no difficulty in identifying them, can reasonably be expected. In the former Paper, 37 double and triple stars were selected as entitled to peculiar notice, these it was my intention to have subjected individually to a rigid investigation; owing however to the almost unprecedented bad weather of the last autumnal and winter months, 30 only of them could be re-measured; and the observations, which are here subjoined as an Appendix, although not so complete* as I could have wished, will still I hope be deemed not unimportant. The arrangement is somewhat different from that pursued on the former occasion: instead of individual measures being * The Appendix contains observations of thirty-six stars; six however of them offer no particular interest, and were measured inadvertently, under an idea that they were un-measured stars. presented to public view, the mean result of each night's work is here noted; but as the number of observations, and the differences between the extreme measures of each series are also specified, it is hoped that the alteration will be satisfactory to the Society. As in these observations I have not had the powerful aid of Mr. Herschel, it has been my endeavour as far as possible to compensate for the loss; hence, instead of taking ten individual observations both of distance and position on the same night, and thereby considering the star measured, I have divided the work generally assigned to each star between two evenings, the better to correct any error which unfavourable state of atmosphere, inaccurate micrometrical readings, or particular bias of judgment might entail; and when the results have exhibited discordances greater than seemed justified by the difficulty of the observations, a third, or even a fourth night's determination has been found useful. To the observations contained in the former Memoir, peculiar interest was attached by the comparison of them with the results obtained by other astronomers; of which by far the most important were those derived from the labours of Sir W. Herschel; but as the observations which are recorded in the Philosophical Transactions are (from circumstances before * adverted to) of themselves inadequate to furnish the final results arrived at by that illustrious astronomer, it is grateful to me, and doubtless will also be to the Society, that the kindness of Mr. Herschel has supplied the necessary information; thus the existence of fresh connected systems is substantiated, and a degree of present importance conferred on the following pages, which he alone could bestow. * See Phil. Trans. for 1824, Part III. page 20. Mr. South's observations of the apparent distances The noble liberality of the Russian Government having recently put Mr. Struve in possession of an instrument much more powerful, and far more appropriate, for pursuing this department of astronomical* enquiry, than those with which his published observations were made, I have not deemed it right, as heretofore, to refer to his earlier, yet still valuable determinations, the general accuracy of which may well be cited as proofs of what industry and perseverance may achieve, although supported by comparatively slender instrumental assistance. I have said that the accompanying observations were made partly at home, and partly abroad; the latter remind me of a pleasing duty:—the Board of Longitude of Paris, and Government of France, have claims upon me too great to remain unnoticed, the one for having requested, and the other for having acceded to me the permission of introducing into France, free of all duty (sans conditions), whatever astronomical instruments I thought proper;† and so effectual were the arrangements of the Director General of the * The investigation of parallax by direct observations of double stars, not having yet been seriously entered upon, although recommended by Sir W. Herschel nearly fifty years ago, and the importance of it having been warmly pressed upon me by Monsieur le Marquis de la Place—a continuous series of observations of the most interesting double and triple stars seeming necessary—and fresh determinations of the orbits of Saturn's satellites being wanted—it was my wish to have procured more extensive means than I possess, to have attacked the one, to have with greater facility followed up the other, and to have furnished the necessary observations of the satellites alluded to;—the overtures however for an object-glass of twelve inches diameter, and twenty feet focal length (Paris measure), with which I had proposed to construct an equatorial, similar to that of which an engraving is given in the former paper, were most unexpectedly arrested in limine, by Mr. Fraunhofer declining to supply me with one, unless accompanied by apparatus provided by himself—a useless augmentation of expense, which prudence therefore did not authorize me, to incur. † The like indulgence was granted me for the importation of my ordinary baggage, travelling carriage, and for whatever I deemed necessary to render my sojourn in France comfortable. Douanes, Mons. le Marquis de Vaulchier, and so extreme the politeness of the principal and subordinate officers of the Customs at Calais, that the importation and exportation of them, were affairs, not of difficulty, but of gratification. It is needless to state, that on the establishment of an observatory by a private individual in a foreign country, many difficulties must be encountered. To Mons. Benjamin Delessert, whose liberality in promoting every thing which has science for its aim knows no bounds, I stand indebted, amongst other things, for whatever comfort my observatory afforded. From the members of the Royal Academy of Sciences of Paris I uniformly received every possible attention, whilst to Messrs. De la Place, Arago, Bouvard, Humboldt, and Poisson, a residence of fifteen months has placed me under obligations of no common order: they were received with pride, and are remembered with gratitude. The Society have now before them, with few exceptions, a re-examination of all the identified double and triple stars described by Sir W. Herschel in the Philosophical Transactions; with the sentiments therefore of the illustrious author of the Mécanique Céleste I will conclude—"Had the labours of Sir W. Herschel been confined to this department of astronomy, the discoveries he has made in it would have alone conferred upon him an imperishable name." JAMES SOUTH. Passy; Rue Franklin, No. 19, Oct. 22, 1825. Mr. South's observations of the apparent distances No. CCCLXXXI. R. A. $0^h\ 0^m$; Decl. $45^\circ\ 23'$ N. 51 (Bode) Andromedæ; Struve, 1; II. 83. Double; 9th and 10th magnitudes. Passy; October 19, 1824; Seven-feet Equatorial. Position $= 3^\circ\ 24'\ nf$ | 5 Obs. | Diff. = $3^\circ\ 22'$ | Extremely difficult. Distance $= 5''.710$ | 5 Obs. | Diff. = $1''.106$ Night favourable. Passy; November 16, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position $= 3^\circ\ 49'\ nf$ | 5 Obs. | Diff. = $3^\circ\ 12'$ | Extremely difficult. Distance $= 4''.371$ | 5 Obs. | Diff. = $1''.178$ Passy; September 27, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $= 4^\circ\ 32'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 40'$ | Extremely difficult. Distance $= 5''.011$ | 5 Obs. | Diff. = $0''.312$ | (South.) Position $= 5^\circ\ 45'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 35'$ | Excessively difficult. Distance $= 5''.087$ | 5 Obs. | Diff. = $0''.649$ | (Capt. Beaufort.) Passy; September 28, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $= 5^\circ\ 47'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 15'$ | Excessively difficult. Distance $= 4''.867$ | 5 Obs. | Diff. = $0''.408$ Mean Result. Position $4^\circ\ 39'\ nf$ (25 Obs.); Distance $5''.009$ (25 Obs.) Epoch 1825.29. There is no evidence of any change in the relative situation of these stars. Sir W. Herschel's observations give $5^\circ\ 48'\ nf$ for the position, Feb. 26, 1783, and $6^\circ\ 44'\ nf$ on Sept. 1, 1802; neither differing more than $2^\circ\ 5'$ from the present position. The distance also remains unaltered. (H.) and positions of 458 double and triple stars, &c. No. CCCLXXXII. R. A. $0^h 5^m$; Decl. $61^\circ 49'$ N. Struve, 3; 1789; 214. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; October 21, 1824; Seven-feet Equatorial. Position $= 85^\circ 37' sf$ | 5 Obs. | Diff. = $1^\circ 44'$ Distance $= 18''.112$ | 5 Obs. | Diff. = $1''.130$ Passy; November 16, 1824; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 86^\circ 4' sf$ | 5 Obs. | Diff. = $0^\circ 56'$ Distance $= 18''.263$ | 5 Obs. | Diff. = $0''.721$ Mean Result. Position $85^\circ 50' sf$; Distance $18''.187$; Epoch 1824.83. No. CCCLXXXIII. R. A. $0^h 9'$; Decl. $15^\circ 32'$ N. Nova; Double; 9th and 11th magnitudes. Passy; September 15, 1825; Seven-feet Equatorial. Position $= 40^\circ 58' sp$ | 5 Obs. | Diff. = $1^\circ 42'$ Excessively difficult. Distance $= 12''.209$ | 5 Obs. | Diff. = $0''.601$ The small star scarcely bears any illumination. Passy; October 12, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $= 38^\circ 30' sp$ | 5 Obs. | Diff. = $1^\circ 39'$ Excessively difficult. Distance $= 11''.991$ | 5 Obs. | Diff. = $0''.601$ Observed on the meridian with 157. Night fine. Mean Result. Position $39^\circ 44' sp$; (10 Obs.); Distance $12''.100$ (10 Obs.) Epoch 1825.74. Mr. South's observations of the apparent distances No. CCCLXXXIV. R. A. $0^h\ 10^m$; Decl. $37^\circ\ 20'$ N. Struve, 6; V. 85. Double; 7th and 12th, or 15th magnitudes. Passy; October 19, 1824; Seven-feet Equatorial. Position = $76^\circ\ 36'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Excessively difficult. Distance = $46''.880$ | 5 Obs. | Diff. = $1''.226$ } Excessively difficult. Night very fine; but the small star will scarcely bear the least illumination. Passy; November 25, 1824; Seven-feet Equatorial. 8th and 15th magnitudes. Position = $77^\circ\ 3'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 55'$ Excessively difficult. All attempts to obtain measures of distance unsuccessful. Passy; December 10, 1824; Seven-feet Equatorial. 7th and 12th, or 15th magnitudes. Position = $76^\circ\ 45'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Excessively difficult. Distance = $44''.943$ | 5 Obs. | Diff. = $0''.865$ } Excessively difficult. Passy; January 6, 1825; Seven-feet Equatorial. 7th and 12th, or 15th magnitudes. Distance = $46''.520$ | 3 Obs. | Diff. = $1''.154$ Excessively difficult. Mean Result Position $76^\circ\ 48'\ nf$ (15 Obs.); Epoch 1824.90; Distance $45''.744$ (13 Obs.); Epoch 1824.92. The position Jan. 16, 1783, was $79^\circ\ 24'\ nf$, and according to a single measure taken by Sir W. H. Aug. 19, 1783, the distance was then $31''$. The difference of $2^\circ\ 36'$ in angle affords no proof of change; but $15''$ in a distance of $46''$, or a third of the whole, is too great to be owing to error of observation, even when the difficulty of the star is considered. (H.) distances and positions of 458 double and triple stars, &c. No. CCCLXXXV. R. A. 0h 16m; Decl. 31° 31' N. Nova; Double; 10th and 11th magnitudes. Passy; September 15, 1825; Seven-feet Equatorial. Position = 81° 49' sf | 5 Obs. | Diff. = 1° 8' } Excessively difficult. Distance = 5".116 | 5 Obs. | Diff. = 0".745 Observations to be received with caution. Passy; October 7, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 80° 21' sf | 5 Obs. | Diff. = 3° 19' } SOUTH. Distance = 6".035 | 5 Obs. | Diff. = 0".913 Position = 82° 5' sf | 5 Obs. | Diff. = 1° 5' } Capt. BEAUFORT. Distance = 5".756 | 5 Obs. | Diff. = 0".986 Measures deemed excessively difficult by both Observers. Mean Result. Position 81° 25' sf; (15 Obs.); Distance 5".636 (15 Obs.); Epoch 1825.74. No. CCCLXXXVI. R. A. 0h 23m; Decl. 27° 32' N. Nova; Double; 9th and 9½ magnitudes. Passy; December 29, 1824; Seven-feet Equatorial. Position = 74° 47' nf | 5 Obs. | Diff. = 1° 28' } Difficult. Distance = 42".228 | 5 Obs. | Diff. = 0".986 Night fine, but neither star bears a good illumination. Passy; January 6, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = 74° 22' sp or nf | 5 Obs. | Diff. = 0° 25' } Very difficult. Distance = 42".335 | 5 Obs. | Diff. = 1".851 Night favourable, but both stars very faint. Mean Result. Position 74° 34' sp or nf; Distance 42".281; Epoch 1825.00. MDCCXXVI. Mr. South's observations of the apparent distances No. CCCLXXXVII. R. A. $0^h 26^m$; Decl. $17^\circ 55' N.$ STRUVE, 8; Hist. Cæl. 478. Double; equal; each of the 10th or 11th magnitudes. Passy; October 19, 1824; Seven-feet Equatorial. Position = $37^\circ 45' sp$ or $nf$ | 5 Obs. | Diff. = $0^\circ 38'$ } Extremely difficult. Distance = $42''.786$ | 5 Obs. | Diff. = $1''.587$ } Night very fine. Passy; November 16, 1824; Seven-feet Equatorial. 11th and $1\frac{1}{2}$ magnitudes. Position = $38^\circ 18' sp$ | 5 Obs. | Diff. = $0^\circ 46'$ } Excessively difficult. Distance = $42''.235$ | 5 Obs. | Diff. = $1''.923$ } Stars steady; Evening favourable. Mean Result. Position $38^\circ 1' sp$ or $nf$; Distance $42''.510$; Epoch 1824.83. CCCLXXXVIII. R. A. $0^h 27^m$; Decl. $29^\circ 1' N.$ STRUVE, 9; Hist. Cæl. 307. Double; 9th and 11th magnitudes. Passy; October 23, 1824; Seven-feet Equatorial. Position = $50^\circ 27' nf$ | 5 Obs. | Diff. = $6^\circ 13'$ } On the meridian. Distance = $7''.988$ | 5 Obs. | Diff. = $1''.250$ } The measures are so excessively difficult, that I have but little confidence in the results. North preceding, in the field with this, is a faint double star of the 4th or 5th class; but it is not measurable with this instrument. Passy; November 16, 1824; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $57^\circ 32' nf$ | 5 Obs. | Diff. = $2^\circ 7'$ } On the meridian. Distance = $7''.040$ | 5 Obs. | Diff. = $1''.322$ } Measures of such difficulty, that I consider them little else than approximations; the small star will not bear the slightest illumination; would be a proper object for Mr. Herschel's 20-feet Reflector. and positions of 458 double and triple stars, &c. No. CCCLXXXVIII. continued. Passy; December 23, 1824; Seven-feet Equatorial. 9th and 12th magnitudes. Position $=55^\circ 4' nf$ | 5 Obs. | Diff.$=2^\circ 35'$ | Excessively difficult. Distance $=6''.069$ | 5 Obs. | Diff.$=0''.553$ The small star scarcely bears any illumination; night at present favourable. Mean Result. (The observations of October 23 being rejected) Position $56^\circ 18' nf$; Distance $6''.554$; Epoch 1824.88. No. CCCLXXXIX. R.A. $0^h 38^m$; Decl. $50^\circ 27' N$. 78 (Bode) Cassiopeiae; Struve, 14; I. 40. Double; 8½ and 9th magnitudes; the small star does not bear a good illumination. Passy; October 23, 1824; Seven-feet Equatorial. Position $=55^\circ 38' sf$ | 5 Obs. | Diff.$=2^\circ 39'$ | Very difficult. Distance $=3''.053$ | 5 Obs. | Diff.$=0''.601$ Passy; November 16, 1824; Seven-feet Equatorial. 8½ and 9th magnitudes. Position $=57^\circ 7' sf$ | 5 Obs. | Diff.$=3''.50'$ | Extremely difficult. Distance $=2''.236$ | 5 Obs. | Diff.$=1''.106$ Passy; September 28, 1825; Seven-feet Equatorial. 8½ and 10th magnitudes. Position $=59^\circ 59' sf$ | 5 Obs. | Diff.$=1''.7'$ | Extremely difficult. Distance $=2''.418$ | 5 Obs. | Diff.$=0''.481$ Mean Result. Position $57^\circ 35' sf$ (15 Obs.); Distance $2''.569$ (15 Obs.); Epoch 1825.14. Sir W. Herschel's position May 4, 1783, was $50^\circ 30' sf$. His distance $\frac{3}{4}$ of a diameter, corresponding to about $2''$ or $2''.\frac{1}{2}$. A slow change of position ($+0''.170$ per annum, direct or in the direction $nf sp$) is rendered the more probable in this star, as the earlier observation is marked "very exact." (H.) Mr. South's observations of the apparent distances No. CCCXC. R. A. 0h 49m; Decl. 16° 38' S. Struve, 17; Hist. Cæl. 249. Double; 9th and 10th magnitudes; both bluish, and do not bear a good illumination. Passy; November 25, 1824; Seven-feet Equatorial. Position = $58° 6' sp$ | 5 Obs. | Diff. = $3° 2'$ Distance = $7°.749$ | 5 Obs. | Diff. = $0°.505$ Very difficult. Night unfavourable; and during the observations of position, very bad. The weather being much improved, the instrument was again placed upon this star, and the following measures were obtained, the star being half an hour west of the meridian: Position = $56° 2' sp$ | 6 Obs. | Diff. = $1° 53'$ Difficult. Passy; November 29, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $57° 27' sp$ | 5 Obs. | Diff. = $2° 40'$ Distance = $7°.814$ | 5 Obs. | Diff. = $0°.841$ Very difficult. The evening is now become so bad, that the observations are discontinued. Mean Result. Position $57° 7' sp$ (16 Obs.); Distance $7°.781$; Epoch 1824.90. No. CCCXCI. R. A. 0h 50m; Decl. 8° 11' S. Struve, 19; P. O. 251. Double; 9th and 10th magnitudes; small, blue. Passy; October 25, 1824; Seven-feet Equatorial. Position = $24° 43' np$ | 5 Obs. | Diff. = $1° 48'$ Distance = $19°.206$ | 5 Obs. | Diff. = $1°.803$ Extremely difficult. Night unfavourable. Passy; November 3, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $27° 4' np$ | 5 Obs. | Diff. = $1° 6'$ Distance = $18°.888$ | 5 Obs. | Diff. = $0°.553$ Very difficult. The small star is blue, and does not bear a good illumination. and positions of 458 double and triple stars, &c. No. CCCXCI. continued. Passy; October 11, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $27^\circ 34' np$ | 5 Obs. | Diff. = $1^\circ 22'$ } Excessively difficult. Distance = $18''.504$ | 5 Obs. | Diff. = $0''.481$ Night foggy; the small star at times very faint. Mean Result. Position $26^\circ 27' np$ (15 Obs); Distance $18''.866$ (15 Obs.); Epoch 1825.17. No. CCCXCII. R.A. $0^h 56^m$; Decl. $6^\circ 25'$ S. Struve, 21; III. 73. Double; 10th and 12th, or 15th magnitudes. Passy; October 30, 1824; Seven-feet Equatorial. Position = $84^\circ 22' sf$ | 5 Obs. | Diff. = $3^\circ 5'$ } Excessively difficult. Distance = $12''.551$ | 3 Obs. | Diff. = $1''.322$ Observations liable to some inaccuracy; neither star bears sufficient illumination; night tolerably fine. Passy; November 9, 1824; Seven-feet Equatorial. 10th and 15th magnitudes. Position = $80^\circ 7' sf$ | 5 Obs. | Diff. = $2^\circ 10'$ } 20 minutes east of Distance = $13''.325$ | 5 Obs. | Diff. = $0''.962$ } the meridian. These measures were procured with such extreme difficulty, that I fear they de- serve but little confidence; the night is rather hazy, and neither of the stars will bear the least illumination. Passy; December 6, 1824; Seven-feet Equatorial. 10th and 15th magnitudes. Distance = $12''.834$ | 5 Obs. | Diff. = $1''.467$. Excessively difficult. The smaller star is now so extremely obscure, that no observations of position can be gotten. Mr. South's observations of the apparent distances No. CCCXCII. continued. Passy; December 23, 1824; Seven-feet Equatorial. 10th and 12th magnitudes. Position $= 83^\circ 37' sf$ | 5 Obs. | Diff. = $0^\circ 56'$ | Extremely difficult. Distance $= 12''.724$ | 5 Obs. | Diff. = $1''.298$ Night fine, but the stars will not admit of sufficient illumination. Mean Result. Position $82^\circ 42' sf$ (15 Obs.); Epoch 1824.89; Distance $12''.893$ (18 Obs.); Epoch 1824.90. The position and distance of 1783 are $89^\circ 12' sp$. (Jan. 31), and $14''.82$ (Aug. 21). A diminution of distance of $2''$ in so difficult a star is not very material; but a change of $8'' 6''$ in the angle, accompanied by an alteration of the quadrant from $sp$ to $sf$ argues a sensible motion in one or both of these stars. (H.) No. CCCXCIII. R. A. $0^h 56^m$; Decl. $31^\circ 13' N.$ $\sigma^2$ Piscium; Struve, 23; V. 16. Double; 6th and 15th magnitudes. Passy; December 7, 1824; Seven-feet Equatorial. Position $= 21^\circ 8' \pm np$ | 2 Obs. | Diff. = $0^\circ 45'$ Excessively difficult. Distance about one minute and a half by estimation. The small star bears no illumination, and the position here given may be one or two degrees in error. The position in Nov. 1781 was stated at $15^\circ 28'$; but no reliance can be placed on this measure, and the evidence of change is open to great suspicion; indeed there may be some doubts as to the identity of the star. (H.) and positions of 458 double and triple stars, &c. No. CCCXCIV. R. A. 0h 58m; Decl. 2° 41' S. 160 (Bode) Ceti; Struve, 28; Hist. Cæl. 392. Double; 9th and 10th magnitudes. Passy; October 25, 1824; Seven-feet Equatorial. Position = $58° 28' np$ | 5 Obs. | Diff. = $6° 35'$ } Extremely difficult. Distance = $4''.159$ | 5 Obs. | Diff. = $0''.336$ } Night unfavourable. Passy; November 3, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $56° 11' np$ | 5 Obs. | Diff. = $4° 48'$ } Extremely difficult. Distance = $4''.130$ | 5 Obs. | Diff. = $0''.721$ } Mean Result. Position $57° 19' np$; Distance $4''.144$; Epoch 1824.82. No. CCCXCV. R. A. 1h 3m; Decl. 31° 7' N. Struve, 30; IV. 120. Double; 8th and 9th magnitudes. Passy; October 23, 1824; Seven-feet Equatorial. Position = $21° 37' sp$ | 5 Obs. | Diff. = $0° 35'$ } Rather difficult. Distance = $18''.888$ | 5 Obs. | Diff. = $0''.817$ } Passy; November 9, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $21° 50' sp$ | 5 Obs. | Diff. = $2° 53'$ } Difficult. Distance = $19''.735$ | 5 Obs. | Diff. = $0''.721$ } Night unfavourable. Passy; December 6, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Distance = $19''.495$ | 5 Obs. | Diff. = $0''.673$. Rather difficult. Mean Result. Position $21° 43' sp$; Distance $19''.373$ (15 Obs.); Epoch 1824.86. This star is unchanged; the measures of 1783 differing from the present only 43' in position, and —1'' in distance. (H.) Mr. South's observations of the apparent distances No. CCCXCVI. R. A. 1\textsuperscript{h} 5\textsuperscript{m}; Decl. 8° 33′ S. Struve, 33; IV. 77. Double; 8th and 15th magnitudes. Passy; October 30, 1824; Seven-feet Equatorial. Position = 67° 3′ n p | 3 Obs. | Diff. = 4° 30′ } Excessively difficult. Distance = 19″.163 ± single observation In these results I have but very little confidence; night tolerably good. Passy; October 12, 1825; Seven-feet Equatorial. 8th and 15th magnitudes. Position = 67° 53′ n p | 5 Obs. | Diff. = 2° 15′ } Excessively difficult. Distance = 20″.036 | 5 Obs. | Diff. = 0″.721 Observed on the meridian with 92; with 181 and 157 the small star could not be distinguished. Night favourable. Mean Result. Position 67° 34′ n p (8 Obs.); Distance 19″.891 (6 Obs.); Epoch 1825.30. The measures of 1783 are 63° 24′ n p and 19 or 20″; neither giving ground to suppose a material change. (H.) No. CCCXCVII. R. A. 1\textsuperscript{h} 9\textsuperscript{m}; Decl. 63° 48′ N. 119 (Bode) Cassiopeiae; Struve, 36. Double; 8th and 9th magnitudes. Passy; October 23, 1824; Seven-feet Equatorial. Position = 83° 32′ n p | 5 Obs. | Diff. = 2° 29′ } Distance = 50″.440 | 5 Obs. | Diff. = 1″.010 } Passy; November 15, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 82° 14′ n p | 5 Obs. | Diff. = 0° 27′ } Distance = 50″.275 | 5 Obs. | Diff. = 0″.649 } Mean Result. Position 82° 53′ n p; Distance 50″.357; Epoch 1824.84. and positions of 458 double and triple stars, &c. No. CCCXCVIII. R. A. 1ʰ 19ᵐ; Decl. 7° 3′ N. Nova; Double; 7th and 9th magnitudes. Passy; December 29, 1824; Seven-feet Equatorial. Position = 7° 54′ sf | 5 Obs. | Diff. = 0° 57′ } Distance = 1′ 9″.500 | 5 Obs. | Diff. = 1″.010 } Passy; January 2, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 8° 41′ sf | 5 Obs. | Diff. = 0° 26′ } Distance = 1′ 10″.005 | 5 Obs. | Diff. = 1″.202 } Observed when 1ʰ 50′ west of the meridian. Mean Result. Position 8° 17′ sf; Distance 1′ 9″.752; Epoch 1825.00. No. CCCXCIX. R. A. 1ʰ 33ᵐ; Decl. 12° 12′ S. χ′ Ceti; STRUVE, 43; Hist. Cæl. 244. Double; large, white; small, blue; 8th and 8½ magnitudes; the small star does not bear a good illumination. Blackman-street, December 12, 1823; Five-feet Equatorial. Position = 0° 6′ sf | 6 Obs. | Diff. = 2° 6′ } Distance = 3″.951 | 5 Obs. | Diff. = 1″.010 } Extremely unsteady. Observed on the meridian; but night unfavourable. Blackman-street; December 30, 1823: Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 0° 15′ nf | 5 Obs. | Diff. = 0° 10′ } Distance = 4″.436 | 5 Obs. | Diff. = 0″.553 } Mean Result. Position 0° 4′ nf; Distance 4″.193; Epoch 1823.97. MDCCCXXVI. Mr. South's observations of the apparent distances No. CCCC. R. A. $1^h\ 34^m$; Decl. $7^\circ\ 59'$. S. Struve, 44; Hist. Cael. 247. Double; 7th and $7\frac{1}{2}$ magnitudes. Passy; November 15, 1824; Seven-feet Equatorial. | Position = $74^\circ\ 41'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 41'$ | | Distance = $36''.749$ | 5 Obs. | Diff. = $0''.817$ | Observed when 15 minutes west of the meridian. Passy; November 16, 1824: Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. | Position = $75^\circ\ 23'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 25'$ | | Distance = $36''.542$ | 5 Obs. | Diff. = $0''.697$ | Mean Result. Position $75^\circ\ 2'\ sp$; Distance $36''.645$; Epoch 1824.87. No. CCCCI. R. A. $1^h\ 40^m$; Decl. $21^\circ\ 23'$. N. 304 (Bode) Piscium; Struve, 45; I. 73. Double; large, white; small, blue; 8th and 10th magnitudes. Blackman-street, December 13, 1823; Seven-feet Equatorial. | Position = $82^\circ\ 15'\ sf$ | 5 Obs. | Diff. = $3^\circ\ 40'$ | | Distance = $3''.412$ | 5 Obs. | Diff. = $0''.601$ | Very difficult. Blackman-street; December 31, 1823; Seven-feet Equatorial. | Position = $82^\circ\ 38'\ sf$ | 5 Obs. | Diff. = $2^\circ\ 35'$ | | Distance = $3''.344$ | 5 Obs. | Diff. = $0''.432$ | Extremely difficult. 9th and 10th magnitudes. Mean Result. Position $82^\circ\ 26'\ sf$; Distance $3''.378$; Epoch 1823.98. On Dec. 23, 1782 (1782-98) the position was $77^\circ\ 24'\ sf$, being a change of $+5^\circ\ 2'$ in 41 years or $+0''.123$ per annum. Future observations must decide on the reality of this motion. The distance seems to have undergone no alteration. (H.) No. CCCCII. R. A. $1^h 42^m$; Decl. $36^\circ 26' N.$ 241 (Bode) Andromedæ; Struve, 46; I. 89. Double; 9th and 10th magnitudes; large, white; small, blue, and bears only a very slight illumination. Blackman-street; December 13, 1823; Seven-feet Equatorial. Position = $71^\circ 8' sf$ | 5 Obs. | Diff. = $1^\circ 13'$ } Extremely difficult. Distance = $4''.243$ | 5 Obs. | Diff. = $0''.721$ } Blackman-street; December 31, 1823; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $71^\circ 36' sf$ | 5 Obs. | Diff. = $1^\circ 55'$ } Excessively difficult. Distance = $4''.652$ | 5 Obs. | Diff. = $0''.601$ } The small star is blue, and scarcely bears any illumination. Passy; January 6, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $72^\circ 3' sf$ | 10 Obs. | Diff. = $1^\circ 39'$ } Extremely difficult. Distance = $3''.878$ | 5 Obs. | Diff. = $0''.481$ } Night very fine, but the small star bears only a very feeble illumination. Mean Result. Position $71^\circ 42' sf$ (20 Obs.); Distance $4''.258$ (15 Obs.); Epoch 1824.98. The observations of Sir W. Herschel in 1783 and 1802 give respectively $75^\circ 30' sf$ and $67^\circ 4' sf$ for the positions of this star. The present position is almost exactly a mean of these, which renders it extremely probable that the star is subject to no material change. (H.) Mr. South's observations of the apparent distances No. CCCCIII. R. A. $1^h\ 45^m$; Decl. $27^\circ\ 56'$ N. Nova; Double; 8th and 10th magnitudes. Passy; September 25, 1825; Seven-feet Equatorial. Position $=75^\circ\ 50'\ sf$ | 5 Obs. | Diff.$=2^\circ\ 40'$ } South. Distance $=5''.802$ | 5 Obs. | Diff.$=0''.745$ } Capt. Beaufort. Position $=76^\circ\ 8'\ sf$ | 5 Obs. | Diff.$=2^\circ\ 43'$ } Capt. Beaufort. Distance $=5''.961$ | 5 Obs. | Diff.$=0''.529$ } Capt. Beaufort. Measures extremely difficult. Passy; September 27, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $=76^\circ\ 23'\ sf$ | 5 Obs. | Diff.$=6^\circ\ 19'$ } South. Distance $=5''.597$ | 5 Obs. | Diff.$=0''.769$ } Capt. Beaufort. Position $=75^\circ\ 1'\ sf$ | 5 Obs. | Diff.$=8^\circ\ 5'$ } Capt. Beaufort. Distance $=5''.333$ | 5 Obs. | Diff.$=0''.745$ } Capt. Beaufort. Measures excessively difficult. Mean Result. Position $75^\circ\ 52'\ sf$ (20 Obs.); Distance $5''.673$ (20 Obs.); Epoch 1825.74. No. CCCCIV. R. A. $1^h\ 47^m$; Decl. $40^\circ\ 30'$ N. Struve, 48; IV. 104. Double; 8th and 10th magnitudes; small, blue. Passy; November 15, 1824; Seven-feet Equatorial. Position $=22^\circ\ 55'\ nf$ | 5 Obs. | Diff.$=2^\circ\ 40'$ } Difficult. Distance $=20''.628$ | 5 Obs. | Diff.$=0''.673$ } Difficult. Night fine, but the small star is very faint. No. CCCCIV. continued. Passy; November 16, 1824; Seven-feet Equatorial. 8th and 12th magnitudes. Position $= 22^\circ 16' nf$ | 5 Obs. | Diff. = $2^\circ 51'$ | Distance $= 20''.553$ | 5 Obs. | Diff. = $1''.250$ | Very difficult. The small star is decidedly light blue; scarcely visible without illumination, but rendered much more distinct by a moderate one. Mean Result. Position $22^\circ 35' nf$; Distance $20''.590$; Epoch 1824.87. This star appears subject to no change of position, as the angle of $1783 (22^\circ 33' nf)$ differs only $2'$ from the present. An excess of $1''.64$ in the present over the earlier measure of distance is not sufficient to authorize any positive conclusion. (H.) No. CCCCV. R. A. $1^h 53^m$; Decl. $78^\circ 50''$ N. Struve, 52; 1789, 223. Double; 7th and $7\frac{1}{2}$ magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position $= 4^\circ 15' np$ | 5 Obs. | Diff. = $0^\circ 47'$ | Distance $= 55''.370$ | 5 Obs. | Diff. = $1''.516$ | Blackman-street; December 30, 1823; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position $= 4^\circ 8' np$ | 5 Obs. | Diff. = $0^\circ 55'$ | Distance $= 55''.237$ | 5 Obs. | Diff. = $0''.962$ | Mean Result. Position $4^\circ 12' np$; Distance $55''.303$; Epoch 1823.97. Mr. South's observations of the apparent distances No. CCCCVI. R. A. $1^h\ 59^m$; Decl. $25^\circ\ 5'$ N. 14 Arietis; Struve, 56; VI. 69. Double; large, white; small, blue; 6th and 10th magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $8^\circ\ 7'\ np$ | 5 Obs. | Diff. = $1^\circ\ 5'$ } Difficult. Distance = $1'\ 45''.\ 349$ | 5 Obs. | Diff. = $2''.\ 020$ } Stars very steady; but the evening hazy. Blackman-street; December 30, 1823; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $7^\circ\ 49'\ np$ | 5 Obs. | Diff. = $0^\circ\ 32'$ } Distance = $1'\ 45''.\ 167$ | 5 Obs. | Diff. = $0''.\ 529$ } Mean Result. Position $7^\circ\ 58'\ np$; Distance $1.\ 45''.\ 258$; Epoch 1823.97. The position and distance of this star in 1783 are stated at $11^\circ\ 12'\ np$ and $1'\ 29''.\ 28''$. The change of position is not material; but with respect to the increase of distance, it may be remarked once for all, that there is great reason to suspect a considerable instrumental error in all the measures of that early period, exceeding $40''$, the result being constantly (or most commonly) in defect, and that not unfrequently to a very large amount. The cause probably lies in the construction of the micrometer used;* and its effect is to throw a great uncertainty on the earlier distances of all stars of the 5th and 6th classes. Fortunately these are the least replete with interest. (H.) * It is certainly not from a wrong determination of its scale. and positions of 458 double and triple stars, &c. No. CCCCVII. R. A. $2^h\ 0^m$; Decl. $1^\circ\ 18'$ S. Struve, 57; Hist. Cæl. 392. Triple; A of the 8th; B of the 9th; and C of the 8th magnitudes. The star B is decidedly blue, and bears a tolerable illumination. Measures of AB. Passy; November 25, 1824; Seven-feet Equatorial. | Position = $20^\circ\ 22'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 2'$ | | Distance = $5''.008$ | 5 Obs. | Diff. = $0''.937$ | Passy; December 7, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. | Position = $18^\circ\ 41'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 15'$ | | Distance = $4''.905$ | 5 Obs. | Diff. = $0''.962$ | Measures of AC. Passy; November 25, 1824; Seven-feet Equatorial. 8th and 8th magnitudes. | Position = $12^\circ\ 57'\ np\ or\ sf$ | 5 Obs. | Diff. = $0^\circ\ 29'$ | | Distance = $4'\ 3''.586$ | 5 Obs. | Diff. = $0''.673$ | Passy; December 7, 1824; Seven-feet Equatorial. Equal; each of the 8th magnitude. | Position = $12^\circ\ 40'\ np\ or\ sf$ | 5 Obs. | Diff. = $0^\circ\ 15'$ | | Distance = $4'\ 4''.573$ | 5 Obs. | Diff. = $1''.010$ | Mean Result. of AB. Position $19^\circ\ 31'\ sp$; Distance $4''.956$ of AC. $12^\circ\ 48'\ np\ or\ sf$ $4'\ 4''.079$ Epoch 1824.92. Mr. South's observations of the apparent distances No. CCCCVIII. R. A. $2^h\ 0^m$; Decl. $19^\circ\ 28'$ N. Struve, 58; III. 68. Double; 9th and 11th magnitudes; small, blue. Passy; November 15, 1824; Seven-feet Equatorial. Position $=60^\circ\ 25'\ s.f$ | 5 Obs. | Diff.$=1^\circ\ 29'$ } Very difficult. Distance$=8''.633$ | 5 Obs. | Diff.$=0''.673$ } The small star bears but the slightest illumination. Passy; November 16, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position $=57^\circ\ 13'\ s.f$ | 5 Obs. | Diff.$=1^\circ\ 57'$ } Extremely difficult. Distance$=9''.271$ | 5 Obs. | Diff.$=0''.529$ } The accuracy of these results perhaps a little questionable; the smaller star does not admit of the least illumination. Mean Result. Position $58^\circ\ 49'\ s.f$; Distance $8''.952$; Epoch 1824.87. In 1783 the measures of this star were, Position $55^\circ\ 42'\ s.f$; Distance $8''\ 5''$; so that no material change in it has taken place. (H.) No. CCCCIX. R. A. $2^h\ 5^m$; Decl. $56^\circ\ 41'$ N. $\chi$ Persei; Struve, 65; VI. 19. Double; 7th and 12th magnitudes. Passy; December 8, 1824; Seven-feet Equatorial. Position $=47^\circ\ 33'\ s.f$ | 3 Obs. | Diff.$=4^\circ\ 20'$ Excessively difficult. The small star will bear no illumination; measures of distance cannot be procured; night not very favourable. No. CCCCIX continued. Passy; December 18, 1824; Seven-feet Equatorial. 6th and 12th magnitudes. Position = $46^\circ 6' sf$ | 5 Obs. | Diff. = $0^\circ 58'$ } Extremely difficult. Distance = $2' 4''.703$ | 5 Obs. | Diff. = $1''.202$ } The small star will bear but the slightest illumination. Passy; January 6, 1825; Seven-feet Equatorial. 7th and 12th magnitudes. Position = $46^\circ 17' sf$ | 5 Obs. | Diff. = $0^\circ 38'$ } Extremely difficult. Distance = $2' 4''.363$ | 5 Obs. | Diff. = $1''.707$ } Mean Result. Position $46^\circ 30' sf$; (13 Obs.); Epoch 1824.97; Distance $2' 4''.533$; Epoch 1824-99. No measures of this star are given by Sir W. Herschel. (H.) No. CCCCX. R. A. $2^h 7^m$; Decl. $39^\circ 27' N$. Struve, 68; Hist. Cæl. 140. Double; 8th and 9th magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $20^\circ 50' np$ | 5 Obs. | Diff. = $1^\circ 59'$ } Faint, but very steady. Distance = $11''.379$ | 5 Obs. | Diff. = $0''.632$ } Blackman-street; December 30, 1823; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $21^\circ 2' np$ | 5 Obs. | Diff. = $1^\circ 0'$ } Distance = $10''.822$ | 5 Obs. | Diff. = $0''.505$ } Mean Result. Position $20^\circ 56' np$; Distance $11''.100$; Epoch 1823.97. No. CCCCXI. R. A. $2^h 14^m$; Decl. $66^\circ 35' N$. Cassiopeia; Struve, 71; I. 34; and III. 4. Measures of AC. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $13^\circ 13' sf$ | 5 Obs. | Diff. = $2^\circ 35'$ } Extremely difficult. Distance = $7''.059$ | 5 Obs. | Diff. = $1''.263$ } Small star is decidedly blue, and bears only an indifferent illumination; the large star may be suspected close double with 137; with 303 is seen as such; owing however to the unsteadiness of the stars, no measures of the close pair can be obtained. MDCCCXXVI. Mr. South's observations of the apparent distances No. CCCCXI. continued. Measures of A C. Blackman-street; January 31, 1824; Seven-feet Equatorial. 5th and 10th magnitudes. Position = $16^\circ 2' sf$ | 5 Obs. | Diff. = $1^\circ 8'$ | Excessively difficult. Distance = $8''.961$ | 5 Obs. | Diff. = $1''.683$ Five-feet Equatorial. Distance = $8''.262$ | 5 Obs. | Diff. = $0''.962$. Excessively difficult. Passy; January 8, 1825; Seven-feet Equatorial. 5th and 10th magnitudes. Position = $18^\circ 33' sf$ | 6 Obs. | Diff. = $3^\circ 30'$ | Excessively difficult. Position = $18^\circ 33' sf$ | 6 Obs. | Diff. = $1^\circ 8'$ | Extremely difficult. Distance = $7''.867$ | 5 Obs. | Diff. = $0''.505$ The first set of observations of position taken this evening were obtained with 179; it being however insufficient to separate distinctly the two stars A and B, the subsequent measures were procured with 273; the star C bears a very tolerable illumination; but the night having become unfavourable, no measures of AB can be gotten. Passy; October 16, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $17^\circ 19' sf$ | 5 Obs. | Diff. = $2^\circ 5'$ | Excessively difficult. Distance = $7''.393$ | 5 Obs. | Diff. = $0''.962$ Observed with 181. The close star B is distinctly seen, but no measures of it can be obtained, in consequence of extreme unsteadiness of the stars. Mean Result. Position $16^\circ 52' sf$; (27 Obs.) Distance $7''.909$ (25 Obs.) Epoch 1824.71. The position of the distant star C was stated in 1782 at $10^\circ 37' sf$, and in 1804 at $18^\circ 57' sf$. It is to be presumed that some mistake had been committed in the earlier measure. (H.) and positions of 458 double and triple stars, &c. No. CCCCXII. R. A. $2^h 17^m$; Decl. $16^\circ 8'$ S. 378 (BODE) Ceti; STRUVE, 72; III. 80. Double; 8th and 12th magnitudes. Passy; November 21, 1824; Seven-feet Equatorial. Position = $22^\circ 40' n.p.$ ± Single measure. Excessively difficult. Night tolerably fine; but the star is not measurable. Passy; November 25, 1824; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $22^\circ 28' n.p.$ ± Single measure. Night unfavourable; no more observations can be gotten. Passy; December 10, 1824; Seven-feet Equatorial. 8th and 12th magnitudes. | Position = $22^\circ 20' n.p.$ | 5 Obs. | Diff. = $3^\circ 18'$ | | Distance = $12''.219$ | 5 Obs. | Diff. = $0''.889$ | Excessively difficult. The small star becomes invisible under the slightest illumination. Passy; December 23, 1824; Seven-feet Equatorial. 7th and 12th magnitudes. Distance = $11''.190$ | 5 Obs. | Diff. = $0''.360$. Excessively difficult. The small star, which is blue, will not bear the least illumination. Mean Result. Position $22^\circ 24' n.p.$ (7 Obs.); Epoch 1824.92; Distance $11''.704$ (10 Obs.); Epoch 1824.96. The measures of 1783 are Pos. $22^\circ 24' n.p.$; Dist. = $11''.3$. The position not differing at all, and the distance only 4-tenths of a second from their present values,—a remarkable coincidence. (H.) Mr. South's observations of the apparent distances No. CCCCXIII. R. A. 2h 22m; Decl. 0° 19' N. Struve, 74; Hist. Cæl. 48. Double; 7½ and 8th magnitudes. Blackman-street; December 12, 1823; Five-feet Equatorial. Position = 53° 14' sp | 5 Obs. | Diff. = 1° 5' } Night unfavourable. Distance = 14''.347 | 5 Obs. | Diff. = 1''.105 } Blackman-street; December 30, 1823; Seven-feet Equatorial. Position = 53° 32' sp | 5 Obs. | Diff. = 0° 38' } Distance = 14''.318 | 5 Obs. | Diff. = 0''.481 } 8th and 8½ magnitudes. Mean Result. Position 53° 23' sp; Distance 14''.332; Epoch 1823.97. No. CCCCXIV. R. A. 2h 22m; Decl. 17° 37' N. Nova; Double; 10th and 11th magnitudes. Passy; October 16, 1825; Seven-feet Equatorial. Position = 89° 11' nf | 5 Obs. | Diff. = 2° 40' } Excessively difficult. Distance = 8''.446 | 5 Obs. | Diff. = 0''.793 } Observed when on the meridian with 157; with 181 the stars were scarcely visible when the field was unilluminated. Night foggy. From this night till the 22nd of this month, when the observatory at this place was dismantled, I was prevented by a succession of bad weather from obtaining a second series of observations of this star. and positions of 458 double and triple stars, &c. No. CCCCXV. R. A. $2^h\ 31^m$; Decl. $18^\circ\ 5'$ N. Nova; Triple; A 9th, B $9\frac{1}{4}$, and C of the 12th or 13th magnitudes. Passy; October 11, 1825; Seven-feet Equatorial. Measures of A B. | Position = $28^\circ\ 48'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 45'$ | | Distance = $2''.875$ | 5 Obs. | Diff. = $0''.288$ | These stars bear but a very indifferent illumination. Measures of A C. Same date and Instrument. | Position = $31^\circ\ 29'\ sp$ | 2 Obs. | Diff. = $0^\circ\ 52'$ | | Distance = $1'6''.256$ | 2 Obs. | Diff. = $0''.240$ | The star C is so extremely indistinct, that the results must be regarded as mere approximations. From this date till the 22nd of October, when the observatory was taken down, I could not obtain any observations of this star. No. CCCCXVI. R. A. $2^h\ 31^m$; Decl. $39^\circ\ 31'$ N. STRUVE, 78; IV. 64. Triple; A of the 8th, B of the 9th, and C of the 5th magnitudes. Measures of A B. Blackman-street; December 20, 1823; Five-feet Equatorial. | Position = $61^\circ\ 3'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 24'$ | | Distance = $22''.534$ | 5 Obs. | Diff. = $0''.885$ | Measures of A C. Same date and Instrument. | Position = $53^\circ\ 56'\ sp$ | 3 Obs. | Diff. = $0^\circ\ 10'$ | | Distance = $4'26''.630$ | 3 Obs. | Diff. = $0''.411$ | C being to the south of A. Mr. South's observations of the apparent distances No. CCCCXVI. continued. Measures of A B. Blackman-street; December 30, 1823; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $59^\circ 58' sp$ | 5 Obs. | Diff. = $2^\circ 20'$ { Very difficult. Distance = $23^\circ .233$ | 5 Obs. | Diff. = $0^\circ .962$ The small star bears only a very feeble illumination. Measures of A C. Same date and Instrument. 9th and 5th magnitudes. Position = $53^\circ 51' sp$ | 3 Obs. | Diff. = $0^\circ 42'$ } Distance = $4^\circ 25'' .454$ | 3 Obs. | Diff. = $0^\circ .601$ The star C being to the south of the star A. Mean Result. of A B. Position $60^\circ 30' sp$; Distance $22''.883$ of A C. Position $53^\circ 53' sp$; Distance $4' 26''.042$ Epoch 1823.99. 1783, March 8. Position of A B $57^\circ 57' sp$; Distance $22''.0$, giving no reason to suspect any sensible change in this star (H.) No. CCCCXVII. R.A. $2^h 32^m$; Decl. $55^\circ 45' N.$ Struve, 80; Hist. Cæl. 371. Double; 9½ and 10th magnitudes; the small star bears but the most feeble illumination. Passy; December 18, 1824; Seven-feet Equatorial. Position = $5^\circ 48' np$ | 5 Obs. | Diff. = $0^\circ 42'$ } Very difficult. Distance = $16''.585$ | 5 Obs. | Diff. = $1''.082$ No. CCCCXVII. continued. Passy; January 6, 1825; Seven-feet Equatorial. Equal, each of $9\frac{1}{2}$ magnitude. Position = $5^o\ 53' np$ or $sf$ | 5 Obs. | Diff. = $3^o\ 3'$ | Extremely difficult. Distance = $16'.492$ | 5 Obs. | Diff. = $0''.601$ Mean Result. Position $5^o\ 50' np$; Distance $16''.538$; Epoch $1824.99$. No. CCCCXVIII. R. A. $2^h\ 34^m$; Decl. $28^o\ 41' N.$ Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; October 11, 1825; Seven-feet Equatorial. Position = $25^o\ 51' np$ | 5 Obs. | Diff. = $2^o\ 9'$ | Extremely difficult. Distance = $2''.606$ | 5 Obs. | Diff. = $0''.408$ Observed when half an hour east of the meridian. Night foggy. Passy; October 16, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $22^o\ 43' np$ | 5 Obs. | Diff. = $1^o\ 30'$ | Excessively difficult. Distance = $3''.200$ | 5 Obs. | Diff. = $0''.192$ Observed on the meridian with $157$. Night very hazy. October 22nd. A succession of cloudy nights since the 16th has prevented me getting another series of observations: the measures are difficult; but the mean will I apprehend not prove very remote from the truth. Mean Result. Position $24^o\ 17' np$ (10 Obs); Distance $2''.903$; Epoch $1825.78$. Mr. South's observations of the apparent distances No. CCCCXIX. R. A. $2^h\ 40^m$; Decl. $52^\circ\ 15' N.$ 85 (Bode) Persei; Struve, 84; I. 38. Double; $9\frac{1}{2}$ and 10th magnitudes; very close. Passy; January 6, 1825; Seven-feet Equatorial. Position = $22^\circ\ 28'\ np$ | 5 Obs. | Diff. = $3^\circ\ 40'$ } Excessively difficult. Distance = $1''.142$ | 5 Obs. | Diff. = $0''.264$ Night extremely favourable; but unfortunately a considerable part (perhaps one-third) of the object-glass is rendered useless by the interference of the transverse timber, which connects the eastern and western sides of the observatory. Passy; January 17, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $20^\circ\ 10'\ np$ | 10 Obs. | Diff. = $4^\circ\ 35'$ } Excessively difficult. Distance = $1''.472$ | 6 Obs. | Diff. = $0''.456$ Night very clear, but the stars unsteady. Passy; January 19, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $21^\circ\ 9'\ np$ | 10 Obs. | Diff. = $2^\circ\ 42'$ } Excessively difficult. Distance = $1''.320$ | 5 Obs. | Diff. = $0''.601$ Observed with z73; night fine. Mean Result. Position $21^\circ\ 1'\ np$ (25 Obs.); Distance $1''.321$ (16 Obs.); Epoch 1825.03. The earlier measures of this star compared with the present offer a discordance. In 1783 the position was stated at $8^\circ\ 24'\ np$; in 1804, by a mean of two measures agreeing well, $20^\circ\ 34'\ np$. It is therefore probable that the first measure might be in error, which from the extreme closeness of the stars might well happen. It should be re-examined some years hence. (H.) and positions of 458 double and triple stars, &c. No. CCCCXX. R. A. $2^h\ 42^m$; Decl. $37^\circ\ 36''$ N. 20 Persei; STRUVE, 85; III. 60. Double; 6th and 12th magnitudes; small, blue, and very faint, but unquestionably becomes more distinct by slight illumination. Passy; November 21, 1824; Seven-feet Equatorial. Position = $34^\circ\ 2' \ sp$ [5 Obs.] Diff. = $2^\circ\ 46'$ Distance = $14''.049$ [5 Obs.] Diff. = $1''.298$ Very difficult. Passy; December 10, 1824; Seven-feet Equatorial. 6th and 12th, or 15th magnitudes. Position = $33^\circ\ 38' \ sp$ [5 Obs.] Diff. = $1^\circ\ 48'$ Distance = $13''.724$ [5 Obs.] Diff. = $0''.962$ Extremely difficult. Mean Result. Position $33^\circ\ 50' \ sp$; Distance $13''.886$; Epoch 1824.91. In 1783 the position was $30^\circ\ 30' \ sp$, a measure which is confirmed by an observation in a 20-feet sweep in the same year, where it is stated at $30^\circ \ sp$. The distance $14''.03$. There is therefore no evidence of material change in this star. (H.) No. CCCCXXI. R. A. $2^h\ 46^m$; Decl. $43^\circ\ 47'$ N. STRUVE, 86; Hist. Cæl. 121. Double; 9th and 10th magnitudes; small, blue. Passy; November 15, 1824; Seven-feet Equatorial. Position = $26^\circ\ 41' \ np$ [5 Obs.] Diff. = $1^\circ\ 57'$ Distance = $28''.153$ [5 Obs.] Diff. = $1''.178$ Very difficult. Night fine; but the small star bears only a very slight illumination. Passy; November 16, 1824; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $26^\circ\ 52' \ np$ [5 Obs.] Diff. = $3^\circ\ 18'$ Distance = $28''.670$ [5 Obs.] Diff. = $2''.717$ Extremely difficult. Mean Result. Position $26^\circ\ 46' \ np$; Distance $28''.411$; Epoch 1824.87. MDCCXXXVI. Mr. South's observations of the apparent distances No. CCCCXXII. R. A. $2^h 48^m$; Decl. $51^\circ 38'$ N. Struve, 87; P. II. 220; Hist. Cæl. 43. Double; 6th and $6\frac{1}{2}$ magnitudes. Blackman-street; December 12, 1823; Five-feet Equatorial. Position = $3^\circ 42' nf$ | 5 Obs. | Diff. = $1^\circ 11'$ Distance = $13''.135$ | 5 Obs. | Diff. = $0''.316$ Blackman-street; December 29, 1823; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $5^\circ 38' nf$ | 5 Obs. | Diff. = $2^\circ 35'$ Night hazy. Distance = $12''.786$ | 5 Obs. | Diff. = $0''.745$ Mean Result. Position $4^\circ 40' nf$; Distance $12''.960$; Epoch 1823.97. No. CCCCXXIII. R. A. $2^h 49^m$; Decl. $25^\circ 42'S$. 41 (Bode) Appar. Chemic; South's Catalogue. Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; December 10, 1824; Seven-feet Equatorial. Position = $51^\circ 2' sp$ | 5 Obs. | Diff. = $1^\circ 5'$ Satisfactory. Distance = $27''.747$ | 5 Obs. | Diff. = $0''.553$ Night very favourable. Passy; December 18, 1824; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $50^\circ 42' sp$ | 5 Obs. | Diff. = $1^\circ 13'$ Rather difficult. Distance = $27''.761$ | 5 Obs. | Diff. = $0''.962$ Night at present not favourable. Mean Result. Position $50^\circ 52' sp$; Distance $27''.754$; Epoch 1824.95. and positions of 458 double and triple stars, &c. No. CCCCXXIV. R. A. $3^h\ 10^m$; Decl. $19^\circ\ 8'$ N. Struve, 90; II. 76. Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; November 15, 1824; Seven-feet Equatorial. Position = $19^\circ\ 6'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 10'$ } Difficult. Distance = $7''.519$ | 5 Obs. | Diff. = $0''.865$ Passy; November 16, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $18^\circ\ 53'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 20'$. Difficult. Distance = $6''.554$ | 5 Obs. | Diff. = $0''.769$. Very difficult. Small star very obscure; both have a bluish tint. Passy; February 4, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Distance = $7''.483$ | 5 Obs. | Diff. = $0''.553$. Satisfactory. Set the micrometer to 29 parts, which with correction for Zero, are equal to the measure obtained on the 16th of November, and found it certainly too small. Mean Result. (The distance observed on November 16 being rejected) Position $18^\circ\ 56'\ sp$; Epoch 1824.87; Distance $7''.501$; Epoch 1824.98. Measures of 1782, Dec. 24; Position $15^\circ\ 24'\ sp$; Distance $5''.80$. These indicate a slight change in angle, and a pretty sensible one ($-1''.7$) in distance, considering the closeness of the stars. (H.) Mr. South's observations of the apparent distances No. CCCCXXV. R. A. $3^h\ 12^m$; Decl. $29^\circ\ 11'N.$ Nova; Double; equal; each of the 9th magnitude. Passy; October 11, 1825; Seven-feet Equatorial. Position = $12^\circ\ 18'\ sf$ or $np$ | 5 Obs. | Diff. = $0^\circ\ 53'$ } Extremely difficult. Distance = $9''.844$ | 5 Obs. | Diff. = $0''.360$ } Neither star bears a good illumination. Night foggy. Observed when 44 minutes east of the meridian. Passy; October 16, 1825; Seven-feet Equatorial. Equal; each of the 11th magnitude. Position = $12^\circ\ 19'\ np$ or $sf$ | 5 Obs. | Diff. = $3^\circ\ 5'$ } Excessively difficult. Distance = $10''.846$ | 5 Obs. | Diff. = $0''.240$ } With the common observing power of 181 the stars were not visible: the observations made on the meridian with 157. Night foggy. October 22nd. The discordance between the two sets of distances is too considerable; between the 16th and this day however, the star has not been visible. The instruments are now dismounted. Mean Result. Position $12^\circ\ 18'\ sf$ or $np$ (10 Obs.) ; Distance $10''.345$ (10 Obs.) ; Epoch 1825.78. No. CCCCXXVI. R. A. $3^h\ 18^m$; Decl. $19^\circ\ 52'N.$ Struve, 92; III. 77. Double; large, white; small, blue; 8th and 11th magnitudes. Blackman-street; February 1, 1824; Seven-feet Equatorial. Position = $75^\circ\ 0'\ sf$ | 5 Obs. | Diff. = $2^\circ\ 15'$ } Extremely difficult. Distance = $8''.077$ | 5 Obs. | Diff. = $0''.481$ } Night unfavourable. Passy; November 16, 1824; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $72^\circ\ 32'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Extremely difficult. Distance = $7''.737$ | 5 Obs. | Diff. = $0''.529$ } The small star is very obscure; it is decidedly blue. No. CCCCXXVI. continued. Passy; January 8, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $71^\circ 29' sf$ | 4 Obs. | Diff. = $1^\circ 59'$. Excessively difficult. Night too unfavourable for measures of distance. Passy; February 4, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Distance = $7''.579$ | 5 Obs. | Diff. = $6''.769$. Extremely difficult. Mean Result. Position $73^\circ 7' sf$; Epoch $1824.66$ (14 Obs.); Distance $7''.798$; Epoch $1824.68$ (15 Obs.) The measures of Jan. 19, 1783, give Position $73^\circ 18' sf$; Distance $8''.533$; the former agreeing very exactly, and the latter pretty well with the present determinations. (H.) No. CCCCXXVII. R. A. $3^h 21^m$; Decl. $27^\circ 6'N$. Struve, 94; Double; $7\frac{1}{2}$ and $7\frac{3}{4}$ magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $36^\circ 39' sp$ | 6 Obs. | Diff. = $0^\circ 58'$ } Distance = $43''.472$ | 5 Obs. | Diff. = $0''.979$ } Blackman-street; December 29, 1823; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $37^\circ 35' sp$ | 5 Obs. | Diff. = $0^\circ 35'$ } Distance = $43''.678$ | 5 Obs. | Diff. = $1''.058$ } Mean Result. Position $37^\circ 7' sp$; Distance $43''.575$; Epoch $1823.97$. Mr. South's observations of the apparent distances No. CCCCXXVIII. R. A. $3^h\ 21^m$; Decl. $26^\circ\ 57'$ N. Struve, 93; Double; $6\frac{1}{2}$ and 7th magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $0^\circ\ 1'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Distance = $11''.663$ | 5 Obs. | Diff. = $1''.105$ } Set the position wire to Zero, and both stars remained bisected by it, during their passage across the field. Blackman-street; December 29, 1823; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $0^\circ\ 50'\ np$ | 5 Obs. | Diff. = $1^\circ\ 0'$ } Distance = $11''.685$ | 5 Obs. | Diff. = $0''.120$ } Occasionally very faint. Mean Result. Position $0^\circ\ 24'\ np$; Distance $11''.674$; Epoch 1823.97. No. CCCCXXIX. R. A. $3^h\ 23^m$; Decl. $22^\circ\ 45'$ N. Struve, 95; Hist. Cael. 31. Double; equal; each of $7\frac{1}{2}$ magnitude. Blackman-street; December 20, 1823; Five-feet Equatorial. Position = $54^\circ\ 40'\ nf$ or $sp$ | 5 Obs. | Diff. = $1^\circ\ 35'$ } Distance = $1'\ 11''.751$ | 5 Obs. | Diff. = $1''.010$ } Blackman-street; December 30, 1823; Seven-feet Equatorial. Equal; each of 8th magnitude. Position = $55^\circ\ 12'\ nf$ or $sp$ | 5 Obs. | Diff. = $1^\circ\ 30'$ } Distance = $1'\ 11''.530$ | 5 Obs. | Diff. = $1''.130$ } Mean Result. Position $55^\circ\ 26'\ nf$ or $sp$; Distance $1'\ 11''.640$; Epoch 1823.98. and positions of 458 double and triple stars, &c. No. CCCCXXX. R. A. $3^h\ 26^m$; Decl. $44^\circ\ 12'$ N. STRUVE, 97; Hist. Cæl. 121; Double; $7\frac{1}{2}$ and 8th magnitudes. Blackman-street; Dec. 20, 1823; Five-feet Equatorial. Position = $5^\circ\ 11'\ s f$ | 6 Obs. | Diff. = $0^\circ\ 40'$ } Satisfactory. Distance = $41''.672$ | 5 Obs. | Diff. = $0''.947$ } Blackman-street; December 29, 1823; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Position = $4^\circ\ 8'\ s f$ | 5 Obs. | Diff. = $0^\circ\ 17'$ } Distance = $41''.350$ | 5 Obs. | Diff. = $1''.082$ } Mean Result. Position $4^\circ\ 39'\ s f$; Distance $41''.511$; Epoch 1823.98. No. CCCCXXXI. R. A. $3^h\ 28^m$; Decl. $0^\circ\ 3'$ N. STRUVE, 99; III. 45; Double; large, white; small, blue; 7th and 12th magnitudes; small star is very faint, but is rendered decidedly more distinct by a slight illumination. Blackman-street; December 20, 1823; Five-feet Equatorial. Position = $46^\circ\ 37'\ s p$ | 5 Obs. | Diff. = $4^\circ\ 57'$ } Extremely difficult. Distance = $5''.675$ | 5 Obs. | Diff. = $1''.136$ } Blackman-street; January 29, 1824; Seven-feet Equatorial. 7th and 12th magnitudes. Position = $42^\circ\ 48'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 40'$ } Extremely difficult. Distance = $5''.949$ | 5 Obs. | Diff. = $1''.034$ } Passy; February 5, 1825; Seven-feet Equatorial. 7th and 12th magnitudes. Position = $44^\circ\ 40'\ s p$. Single measure. Extremely difficult. Night is suddenly become cloudy, not a star visible. Mr. South's observations of the apparent distances No. CCCCXXXI. continued. Mean Result. Position $44^\circ 42' sp$; Epoch 1824.38; Distance $5''.812$; Epoch 1824.02. The angle of $1781 (35^\circ 33' sp)$, is declared in the MS. observation to be too small by $6^\circ$ or $8^\circ$; and if we suppose the mean ($7^\circ$) to be the actual error, the corrected angle $42^\circ 33'$ agrees well enough with the present; so that no change need be presumed in this star. (H.) No. CCCCXXXII. R.A. $3^h 29^m$; Decl. $33^\circ 32' N.$ Struve, 100; II. 52; A very neat double star; equal; each $8\frac{1}{2}$ magnitude. Blackman-street; December 20, 1823; Five-feet Equatorial. | Position = $14^\circ 6' np$ or $sf$ | 5 Obs. | Diff. = $0^\circ 57'$ } Difficult. | Distance = $3''.616$ | 5 Obs. | Diff. = $0''.411$ } Night very fine. Blackman-street; December 29, 1823; Seven-feet Equatorial. Equal; each of the 9th magnitude. | Position = $13^\circ 22' sf$ or $np$ | 5 Obs. | Diff. = $0^\circ 45'$ } | Distance = $3''.284$ | 5 Obs. | Diff. = $0''.312$ } Mean Result. Position $13^\circ 44' sf$ or $np$; Distance $3''.450$; Epoch 1823.98. The position of $1783, 8^\circ 24' np$, is called a small angle. It is doubtful therefore whether to ascribe the apparent motion of $+5^\circ 20'$, or $+0^\circ.130$ per annum to a real change in the stars, or to error of observation. (H.) and positions of 458 double and triple stars, &c. No. CCCCXXXIII. R. A. $3^h\ 30^m$; Decl. $28^\circ\ 11'$ N. Nova; or $145.23$; Double; 8th and $8\frac{1}{2}$ magnitudes; small, blue. Passy; November 25, 1824; Seven-feet Equatorial. Position = $64^\circ\ 45'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 18'$ Distance = $7''.203$ | 5 Obs. | Diff. = $0''.769$ Passy; December 5, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $66^\circ\ 21'\ sp$ | 5 Obs. | Diff. = $3^\circ\ 0'$ Distance = $7''.203$ | 5 Obs. | Diff. = $1''.154$ Night is very bad. The evening being much more favourable, the following measures were procured. Position = $64^\circ\ 21'\ sp$ | 5 Obs. | Diff. = $3^\circ\ 4'$ Distance = $7''.579$ | 5 Obs. | Diff. = $0''.456$ Mean Result. Position $65^\circ\ 3'\ sp$ (15 Obs.); Distance $7''.326$ (15 Obs.); Epoch $1824.91$. No. CCCCXXXIV. R. A. $3^h\ 32^m$; Decl. $37^\circ\ 48'$ N. Struve, 102; Hist. Cael. 122; Double; large, white; small, blue; 8th and 9th magnitudes. Blackman-street; December 20, 1823; Five-feet Equatorial. Position = $0^\circ\ 56'\ nf$ | 7 Obs. | Diff. = $0^\circ\ 58'$ Steady. Distance = $28''.686$ | 5 Obs. | Diff. = $0''.885$ These measures may be a little suspicious, the night having become very hazy; the small star during the observations, was extremely faint. Blackman-street; January 27, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $1^\circ\ 49'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 20'$ Distance = $28''.213$ | 6 Obs. | Diff. = $1''.130$ Mean Result. Position $1^\circ\ 33'\ nf$; Distance $28''.428$; Epoch $1824.00$. Mr. South's observations of the apparent distances No. CCCCXXXV. R. A. $3^h\ 35^m$; Decl. $40^\circ\ 55' N.$ Struve, 103; Hist. Cæl. 137; Double; 9th and 10th magnitudes; bear but a very feeble illumination. Passy; December 7, 1824; Seven-feet Equatorial. Position = $44^\circ\ 28'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 8'$ Distance = $9''.877$ | 5 Obs. | Diff. = $1''.130$ {Very difficult. Passy; December 10, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $44^\circ\ 7'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 35'$ Distance = $9''.858$ | 5 Obs. | Diff. = $0''.697$ {Extremely difficult. Mean Result. Position $44^\circ\ 18'\ nf$; Distance $9''.867$; Epoch 1824.94. No. CCCCXXXVI. R. A. $3^h\ 35^m$; Decl. $56^\circ\ 31' N.$ Struve, 104; Hist. Cæl. 371; Double; 7th and 8th magnitudes. Blackman-street; December 20, 1823; Five-feet Equatorial. Position = $15^\circ\ 50'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 41'$. Night bad. Observations of distance impracticable. Blackman-street; December 22, 1823; Five-feet Equatorial. 7th and 8th magnitudes. Position = $16^\circ\ 21'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 5'$ Distance = $58''.357$ | 5 Obs. | Diff. = $1''.168$ {Unsteady. Blackman-street; December 30, 1823; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $15^\circ\ 56'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 32'$ Distance = $57''.055$ | 5 Obs. | Diff. = $0''.529$ {Unsteady. The distances do not accord so well as might be expected; a circumstance which, by the non-existence of other observations, appears to have been overlooked. Mean Result. Position $16^\circ\ 2'\ nf$ (15 Obs.) ; Epoch 1823.98; Distance $57''.706$ (10 Obs.) ; Epoch 1823.99. and positions of 458 double and triple stars, &c. No. CCCCXXXVII. R. A. $3^h\ 36^m$; Decl. $23^o\ 27'N$. Struve, 105; Double; 9th and 10th magnitudes. Blackman-street; December 27, 1823; Five-feet Equatorial. Position $= 29^o\ 48'\ s.f$ | 5 Obs. | Diff. = $0^o\ 37'$ Distance $= 34''.595$ | 5 Obs. | Diff. = $0''.769$ Blackman-street; January 2, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position $= 29^o\ 38'\ s.f$ | 5 Obs. | Diff. = $1^o\ 0'$ Distance $= 34''.493$ | 2 Obs. | Diff. = $0''.793$ No more measures can be obtained; not a star visible. Mean Result. Position $29^o\ 48'\ s.f$; Distance $34''.566$; Epoch $1823.99$. No. CCCCXXXVIII. R. A. $3^h\ 37^m$; Decl. $23^o\ 32'N$. Alcyone; Struve, 106. Quadruple; A 4th, B 6th, C 8th, and D of the 9th magnitudes. Measures of A B. Blackman-street; December 27, 1823; Five-feet Equatorial. Position $= 18^o\ 57'\ n.p$ | 6 Obs. | Diff. = $0^o\ 31'$ Distance $= 1'\ 56''.718$ | 6 Obs. | Diff. = $1''.358$ Rather difficult. Just as these measures were begun, the night became suddenly hazy, so that A seemed of the 6th, and B of the 10th magnitudes. Blackman-street; December 31, 1823; Seven-feet Equatorial. 4th and 6th magnitudes. Position $= 18^o\ 28'\ n.p$ | 5 Obs. | Diff. = $0^o\ 14'$ Satisfactory. Distance $= 1'\ 56''.496$ | 5 Obs. | Diff. = $0''.769$ Measures of B C. Blackman-street; December 27, 1823; Five-feet Equatorial. 6th and 8th magnitudes. Position $= 74^o\ 10'\ n.p$ | 5 Obs. | Diff. = $0^o\ 23'$ Distance $= 1'\ 25''.360$ | 5 Obs. | Diff. = $1''.295$ Mr. South's observations of the apparent distances No. CCCCXXXVIII. continued. Blackman-street; December 31, 1823; Seven-feet Equatorial. 7th and 10th magnitudes. Distance = $1' 25'' .921$ | 5 Obs. | Diff. = $1''.250$. Very hazy. The small star is extremely faint. Passy; February 5, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $74^\circ 7' np$ | 5 Obs. | Diff. = $0^\circ 30'$ Measures of B D. Blackman-street; December 27, 1823; Five-feet Equatorial. 6th and 9th magnitudes. Position = $33^\circ 49' np$ | 5 Obs. | Diff. = $1^\circ 11'$ Rather difficult. Distance = $1' 14''.300$ | 5 Obs. | Diff. = $1''.579$ Evening unfavourable; small star extremely faint. Blackman-street; December 31, 1823; Seven-feet Equatorial. 6th and 10th, or 11th magnitudes. Position = $33^\circ 59' np$ | 5 Obs. | Diff. = $1^\circ 15'$ Difficult. Distance = $1' 15''.072$ | 5 Obs. | Diff. = $0''.841$ Night hazy; small star will bear only a very feeble illumination. Mean Result. of A B: Position $18^\circ 42' np$; Distance $1' 56''.607$; Epoch 1824.00. of BC: Position $74^\circ 8' np$; Epoch 1824.36; Distance $1' 25''.640$; Epoch 1824.00. of BD: Position $33^\circ 54' np$; Distance $1' 14''.686$; Epoch 1824.00. No. CCCCXXXIX. R. A. $3^h\ 38^m$; Decl. $10^\circ\ 35'$ N. 30 Tauri; STRUVE, 107; III. 66. Double; 5th and 12th magnitudes; small star, blue, and very faint, but is rendered more distinct by a slight illumination. Passy; December 22, 1824; Seven-feet Equatorial. Position = $31^\circ\ 32'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 47'$ } Excessively difficult. Distance = $9''.791$ | 5 Obs. | Diff. = $0''.601$ I have often in England, and frequently since my abode here, attempted to observe this double star, but till now always unsuccessfully. The sky is nearly obscured by clouds, but the stars visible in the openings between the clouds are remarkably brilliant; they also pass through the field of the telescope extremely steadily: yet the wind is tremendously high. Notwithstanding these favourable circumstances the measures are attended with so much difficulty, that those of distance may perhaps be liable to an error of one, or even of two seconds. Passy; December 23, 1824; Seven-feet Equatorial. 5th and 12th magnitudes. Position = $30^\circ\ 57'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 8'$ } Excessively difficult. Distance = $9''.944$ | 5 Obs. | Diff. = $0''.769$ The small star is blue, and is invisible without slight illumination; night remarkably favourable for difficult observations. Mean Result. Position $31^\circ\ 14'\ nf$ (14 Obs.); Distance $9''.867$; Epoch 1824.98. A measure in 1783, which gives the position $17^\circ\ 15'\ nf$, can have no reliance placed on it, being contradicted by an estimation which makes it $40^\circ$ or $45^\circ$; so that no conclusion respecting the motion or rest of this star can be formed. (H.) No. CCCCCXL. R. A. $3^h\ 43^m$; Decl. $50^\circ\ 10' N.$ 43 Persei; Struve, 109; V. 41. Double; 5th and 12th, or 15th magnitudes; small, blue. Passy; December 29, 1824; Seven-feet Equatorial. Position = $59^\circ\ 53' nf$ | 5 Obs. | Diff. = $1^\circ\ 45'$ } Very steady. Distance = $1'\ 16''.626$ | 5 Obs. | Diff. = $0''.817$ Measures of considerable difficulty; the small star under a very slight illumination becomes invisible. Passy; January 2, 1825; Seven-feet Equatorial. 5th and 15th magnitudes. Position = $60^\circ\ 20' nf$; a single observation. Excessively difficult. Passy; January 17, 1825; Seven-feet Equatorial. 5th and 12th, or 15th magnitudes. Position = $57^\circ\ 47' nf$ | Single Observation } Excessively difficult. Distance = $1'\ 17''.975$ | Single Observation The dew is so rapidly deposited on the exterior and interior surfaces of the object-glass, that the small star does not continue visible sufficiently long, for measures of accuracy to be procured. The night is particularly fine. Mean Result. Position $59^\circ\ 39' nf$ (7 Obs.); Epoch 1825.01; Distance $1'\ 16''.934$ (6 Obs.); Epoch 1825.02. No measures are given by Sir W. H. of this star. (H.) No. CCCCXLI. R. A. $3^h\ 43^m$; Decl. $31^\circ\ 20'N$. $\zeta$ Persei; STRUVE, 108; VI. 96. Quadruple; A 4th, B 12th, C 15th, and D of the 13th magnitudes: all south preceding. B is decidedly blue; bears a much better illumination than C or D; and D bears more than C. Measures of A B. Passy; December 22, 1824; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $65^\circ\ 47'\ sp$ | $12''.825$ | | 5 Obs. | Diff. = $3^\circ\ 40'$ | | 5 Obs. | Diff. = $0''.577$ | Difficult. This star B seems to have escaped the observations of Sir WILLIAM HERSCHEL, a circumstance which is rather singular, seeing that it is brighter than either of the more distant stars, whose situations relatively to $\zeta$ have been determined by him.—Is the star B variable in point of lustre? The stars between the clouds are magnificently bright, and are unusually steady, although the wind, which during the last thirty-six hours has been tremendously high, threatens every moment to carry away the roof of the observatory. The shutters are only separated from each other by a space equal to the diameter of the object end of the telescope. Passy; December 23, 1824; Seven-feet Equatorial. 4th and 12th magnitudes. | Position | Distance | |----------|----------| | $64^\circ\ 53'\ sp$ | $13''.767$ | | 5 Obs. | Diff. = $1^\circ\ 27'$ | | 5 Obs. | Diff. = $0''.721$ | Very difficult. Night very fine, but of A C no measures can be procured; and these of A B just obtained were attended with much greater difficulty than were those of last night; should therefore the two sets differ, those of last night must have the preference. Passy; January 19, 1825; Seven-feet Equatorial. 4th and 12th magnitudes. | Position | Distance | |----------|----------| | $64^\circ\ 33'\ sp$ | | 6 Obs. | Diff. = $2^\circ\ 45'$ | Very difficult. To night I should certainly say that the nearest star B was not so distinct without illumination as either of the more distant stars, nor does it bear illumination so well as the distant star D; but still allows much more of it than C. Are any of the group variable? The angle of position of A B was this evening gotten with considerable difficulty. The night is very fine. Mr. South's observations of the apparent distances No. CCCCXLII. continued. Measures of A C. Passy; December 22, 1824; Seven-feet Equatorial. 4th and 15th magnitudes. Position = $71^\circ 15' sp$ | 5 Obs. | Diff. = $1^\circ 57'$ {Extremely difficult. Distance = $1' 25'' .126$ | 5 Obs. | Diff. = $1''.202$ Night very cloudy: these observations gotten by availing myself of the rapid motion of the clouds, which now and then presents the stars to view; when visible they are unusually brilliant, and pass through the field as steadily as possible; to obtain these measures I have not quitted the observing chair during the last hour, nor do I deem the time ill-spent: except under very unusual circumstances, no observations of this pair of stars can reasonably be expected with this instrument. Passy; December 29, 1824; Seven-feet Equatorial. 4th and 20th magnitudes. Position = $72^\circ 5' sp$ | 3 Obs. | Diff. = $1^\circ 38'$. Excessively difficult. Measures of distance impracticable; and the night is become so unfavourable, that more observations of position cannot be gotten: yet measures of A B and A D might be procured with facility. Passy; January 19, 1825; Seven-feet Equatorial. 4th and 15th magnitudes. Position = $70^\circ 42' sp$ | 5 Obs. | Diff. = $1^\circ 20'$ {Excessively difficult. Distance = $1' 23'' .632$ | 5 Obs. | Diff. = $1''.010$ Night very fine. Measures of A D. Passy; December 22, 1824; Seven-feet Equatorial. 4th and 13th magnitudes. Position = $85^\circ 56' sp$ | 7 Obs. | Diff. = $2^\circ 10'$ {Very difficult. Distance = $1' 59'' .461$ | 5 Obs. | Diff. = $0''.841$ A B are more easily observed than A D, and A D than A C; but all present considerable difficulties, and measures of them with this instrument will never be procured, except under the most favourable circumstances. and positions of 458 double and triple stars, &c. No. CCCCXLI. continued. Passy; December 23, 1824; Seven-feet Equatorial. 4th and 14th magnitudes. Position = $84^\circ 58' sp$ | 7 Obs. | Diff. = $1^\circ 58'$ } Excessively difficult. Distance = $1' 58''.682$ | 7 Obs. | Diff. = $1''.250$ The night is very fine, but no measures of A C can be obtained; and these of A D were gotten with much greater difficulty, than were last night's observations. Mean Result. of A B. Position $65^\circ 2' sp$ (16 Obs); Epoch 1825.00; Distance $13''.296$; Epoch 1824.98. of A C. Position $71^\circ 14' sp$ (13 Obs.); Distance $1' 24''.379$; Epoch 1825.01. of A D. Position $85^\circ 27' sp$; Distance $1' 59''.071$; Epoch 1824.98. On the 22nd January, 1783, the position of A C was $66^\circ 36' sp$, differing — $4^\circ 38'$ from the present angle. According to Piazzi this star has a proper motion of — $0''.14$ per annum in R. A. amounting to nearly — $6''$ in 42 years. If this be confined to the large star, an apparent relative motion of the two stars should arise in the direction, and nearly to the amount actually observed. (H.) No. CCCCXLII. R. A. $3^h 50^m$; Decl. $22^\circ 41' N.$ Struve, 113; P. III. 213; Hist. Cæl. 196. Double; large, white; small, blue; 8th and $8\frac{1}{2}$ magnitudes. Blackman-street; December 22, 1823; Five-feet Equatorial. Position = $37^\circ 40' sf$ | 5 Obs. | Diff. = $3^\circ 5'$ } Difficult. Distance = $7''.080$ | 5 Obs. | Diff. = $0''.474$ Blackman-street; December 29, 1823; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $37^\circ 42' sf$ | 5 Obs. | Diff. = $1^\circ 52'$ } Unsteady. Distance = $7''.314$ | 6 Obs. | Diff. = $1''.202$ Mean Result. Position $37^\circ 41' sf$; Distance $7''.208$; Epoch 1823.98. MDCCXXVI. Mr. South's observations of the apparent distances No. CCCCXLIII. R. A. $3^h\ 57^m$; Decl. $13^o\ 54'N.$ Nova; Double; 9th and 10th magnitudes: a star C of the 5th magnitude precedes it to the north. Measures of A B. Passy; February 9, 1825; Seven-feet Equatorial. Position $= 23^o\ 56'\ s.f$ | 5 Obs. | Diff. = $2^o\ 0'$ } Difficult. Distance $= 44''.087$ | 5 Obs. | Diff. = $0''.793$ } Passy; February 10, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $= 2^o\ 51'\ s.f$ | 5 Obs. | Diff. = $0^o\ 47'$ } Very difficult. Distance $= 44''.337$ | 5 Obs. | Diff. = $0''.913$ } The fog is very troublesome. Measures of A C. Passy; February 10, 1825; Seven-feet Equatorial. 9th and 5th magnitudes. Position $= 31^o\ 11'\ n.p$ | 5 Obs. | Diff. = $0^o\ 32'$ } Tolerably steady. Distance $= 3'\ 1''.909$ | 5 Obs. | Diff. = $1''.082$ } The star C preceding A to the north. Passy; February 10, 1825; Portable Transit.* Observed R. A. of the star A = $3^h\ 56'\ 44''.91$. Mean Result. of A B. Position $23^o\ 53'\ s.f$; Distance $44''.212$; Epoch 1825.10. of A C. $31^o\ 11'\ n.p$; $3'\ 1''.909$; Epoch 1825.10. * My Troughton's Seven-feet Transit, to which reference was occasionally made in the former Memoir, being, on account of its bulk, ill calculated for a travelling companion, Mr. Simms was requested to construct me one that should be more appropriate; and as it fully answers the purpose for which it was designed, a brief description of it may not prove altogether uninteresting to the travelling Astronomer. The centre piece of this instrument is spheroidal: the length of the horizontal or transverse axis, including the pivots, is 28 inches: on one end of this axis is a circle of 9.9 inches diameter, having a ring of silver soldered to its circumference, on which the dividing lines are drawn; the circle is provided with a level and two verniers; the scale of the former reading to 10 seconds, the latter to minutes only; it is intended solely as a finder, but will give the apparent altitude of a celestial object accurate to one minute. The tubes of the telescope are conical, screw into the centrepiece, and may be removed from it at pleasure, as may be also the circle from the and positions of 458 double and triple stars, &c. No. CCCCXLIV. R.A. $3^h\ 58'$; Decl. $22^\circ\ 38'$ N. Nova; Double; 9th and $9\frac{1}{4}$ magnitudes. Passy; October 16, 1825; Seven-feet Equatorial. | Position = $84^\circ\ 8'\ s\ p$ | 5 Obs. | Diff. = $1^\circ\ 15'$ | | Distance = $6'\ .301$ | 5 Obs. | Diff. = $6''.553$ | Extremely difficult. Neither star bears sufficient illumination. Night foggy. Between this night and the 22nd of October, when the observatory at Passy was broken up, unfavourableness of the weather prevented me getting a second series of observations. axis; the cones however of the horizontal axis being firmly soldered and pinned to a shoulder projecting from the centre-piece, are not separable from it: the level of the axis is supplied with a silver scale, each division of which is equivalent to one second. In the focus of the object-glass are seven equi-distant wires, the equatorial interval between any two of them being about 20 seconds of time: on each side of the meridian wire, and at equal distances from it, are two others, so placed that the pole star shall pass from it to either of them in two minutes, for a purpose explained in the Memoirs of the Astronomical Society (vide Vol. I. page 238); applicable to each side plate, is an apparatus for regulating the quantity of light projected from the lamp upon the wires. The side plates are similar to those belonging to my Four-feet Transit Circle, and which (I believe) were described in Rees's Encyclopaedia, when the instrument was the property of Mr. Groombridge. A second level for the horizontal axis, a spare one for the altitude circle, and a second wire-plate furnished with spiders' lines are at hand, and are ready for immediate use, should accident sustained by any of the first set, render them unfit for service—a reserve which no traveller should neglect; lest also any of the screws by which the various parts of the instrument are connected should be lost, a few additional ones placed in the box are not, (as I have found by experience), without their use. The object-glass was made by Mr. Tullery, and originally belonged to the Westbury Circle: its clear aperture is 2.7 inches, its focal length is 43 inches; with a magnifying power of 300 it defines $\alpha$ Lyrae, Arcturus and Aldebaran, perfectly sharp and round; separates very distinctly the close stars of $\gamma$ Leonis, $\alpha$ Bootis, and $\zeta$ Orionis; whilst with 150 (the commonly used power) under favourable circumstances, the small star south preceding Polaris, is sufficiently visible to enable the observer to take its transit, with considerable precision. The instrument is mounted on stone piers, and has retained its meridian position extremely well; fifteen months' experience has shown, that whilst the maximum error, to which the mean of a single series of observations of any star south of the zenith of my observatory, does not exceed 4-tenths of a second, often, very often, the result of a single set will not deviate 2-tenths from the true right ascension. When the pole star is steady, its transit over the wire may be determined to one second. Thus much for its utility. As for its portability: the transverse axis, the telescope tubes, and the altitude circle, are included in a box 29 inches long, 14 inches broad, and 6$\frac{1}{2}$ inches deep. The three levels, the spare wire-plate, the light regulating apparatus, the lamp, &c. are lodged in a case 27$\frac{1}{2}$ inches in length, 11$\frac{1}{2}$ in breadth, and 3$\frac{1}{2}$ in depth. The side plates, with their appendages of nuts, screws, &c. are contained in a box 13$\frac{1}{2}$ inches long, 7$\frac{1}{2}$ inches broad, and 7$\frac{1}{2}$ inches deep; and the tout ensemble is well accommodated under the seat of my travelling carriage. (The measures are all exterior.) Passy; October 22, 1825. Mr. South's observations of the apparent distances No. CCCCXLV. R. A. $4^h 7^m$; Decl. $49^\circ 50' N.$ Struve, 117; Triple; A $7\frac{1}{2}$, B 8th, and C of the 10th magnitudes. Measures of A B. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $56^\circ 36' np$ | 5 Obs. | Diff. = $1^\circ 2'$ Distance = $1' 15''.047$ | 5 Obs. | Diff. = $1''.358$ Blackman-street; December 29, 1823; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Position = $56^\circ 31' np$ | 5 Obs. | Diff. = $0^\circ 35'$ Distance = $1' 15''.364$ | 6 Obs. | Diff. = $0''.841$ Measures of A C. Blackman-street; December 9, 1823; Five-feet Equatorial. $7\frac{1}{2}$ and 10th magnitudes. Position = $10^\circ 26' sp$ | 3 Obs. | Diff. = $0^\circ 10'$ Distance = $2' 29''.634$ | 3 Obs. | Diff. = $3''.000$ Excessively difficult. These results are rather suspicious, the small star is so extremely obscure. Blackman-street; December 29, 1823; Seven-feet Equatorial. $7\frac{1}{2}$ and 12th magnitudes. Position = $9^\circ 47' sp$ | 3 Obs. | Diff. = $0^\circ 20'$ Distance = $2' 27''.974$ | 3 Obs. | Diff. = $0''.649$ Extremely difficult. Passy; February 6, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 11th magnitudes. Position = $10^\circ 0' sp$ | 2 Obs. | Diff. = $0^\circ 20'$ Distance = $2' 28''.620$ | 5 Obs. | Diff. = $0''.889$ Extremely difficult. Mean Result. Of A B. Position $56^\circ 33' np$; Distance $1' 15''.220$; Epoch 1823.97. Of A C. Position $10^\circ 7' sp$; Distance $2' 28''.720$; Epoch 1824.34. and positions of 458 double and triple stars, &c. No. CCCCXLVI. R. A. 4h 7m; Decl. 7° 55' S. 40, Eridani; Struve, 116; Double; 6th and 10th magnitudes; small, blue. Passy; December 10, 1824; Seven-feet Equatorial. Position = 18° 18' sf | 7 Obs. | Diff. = 1° 16' } Excessively difficult. Distance = 1' 24''.697 ±; Single measure No satisfactory measures of distance can be procured; the deposition of moisture upon the object-glass is so considerable, notwithstanding a tube* twelve inches long is adapted to the object-end of the telescope, that I am obliged to wipe it every few minutes. The stars, even those of low altitude, are unusually steady: were it not for the annoyance of the dew, stars presenting almost any degree of difficulty might be well observed to night. Thermometer stands at 24°. The instrument is covered with hoar frost. Passy; December 22, 1824; Seven-feet Equatorial. 5th, and 9th or 10th magnitudes. Position = 17° 34' sf | 5 Obs. | Diff. = 0° 39' } On the meridian. Distance = 1' 24''.178 | 5 Obs. | Diff. = 1''.082 Measures extremely difficult. Stars so remarkably steady, that they may be kept bisected by the wire almost as long as I please. The wind is blowing a perfect hurricane; and fearing that a perseverance in observing, may occasion the destruction of the observatory, I am obliged, although reluctantly, to discontinue working. Scarcely ever do I remember to have seen such opportunities for making delicate observations, as the chasms between transient clouds have presented this evening. Passy; December 23, 1824; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 17° 45' sf. Single observation. Excessively difficult. The night suddenly has become bad; the small star is no longer visible. Passy; January 28, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 17° 56' sf | 5 Obs. | Diff. = 0° 29' } Excessively difficult. Distance = 1' 25''.279 | 5 Obs. | Diff. = 0''.962 Mean Result. Position 17° 58' sf (18 Obs.); Epoch 1824.99; Distance 1' 24''.726 (11 Obs.); Epoch 1825.00. * The tube first employed for this purpose was made of pasteboard: the dew however was frequently so copious that its figure became deranged, and it could with difficulty be re-applied to the object-end of the telescope. Under these circumstances, the veneered deal of which the English hat-box is constructed, afforded a material not liable to this inconvenience—its pliability rendered it easy to add one cylinder to another, so as to form a tube of any desired length, its weight at the same time very slightly disturbing the equilibrium of the telescope. Mr. South's observations of the apparent distances No. CCCCXLVII. R. A. $4^h\ 13^m$; Decl. $33^\circ\ 53'$ N. Struve, 124; IV. 72; Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; December 10, 1824; Seven-feet Equatorial. | Position = $29^\circ\ 48'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 48'$ | | Distance = $20''.010$ | 5 Obs. | Diff. = $1''.226$ | Passy; December 22, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. | Position = $29^\circ\ 51'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 1'$ | | Distance = $19''.721$ | 5 Obs. | Diff. = $1''.202$ | The small star is decidedly blue. Mean Result. Position $29^\circ\ 49'\ nf$; Distance $19''.865$; Epoch 1824.96. The measures of 1783 were, Position $27^\circ\ 24'\ nf$; Distance $16''.85$; the former differing but little from the present; the latter presenting an increase of $3''.015$, being more than should be expected on a total of $17''$ only. (H.) No. CCCCXLVIII. R. A. $4^h\ 18^m$; Decl. $29^\circ\ 57'$ N. Struve, 124; Hist. Cæl. 136; Double; 8th and 10th magnitudes; small, blue. Blackman-street; December 22, 1823; Five-feet Equatorial. | Position = $55^\circ\ 57'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 16'$ | | Distance = $15''.276$ | 5 Obs. | Diff. = $0''.284$ | Blackman-street; December 30, 1823; Seven-feet Equatorial. 8th and 10th magnitudes. | Position = $55^\circ\ 29'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 15'$ | | Distance = $15''.232$ | 5 Obs. | Diff. = $0''.456$ | Mean Result. Position $55^\circ\ 43'\ nf$; Distance $15''.254$; Epoch 1823.99. No. CCCCXLIX. R. A. 4\textsuperscript{h} 18\textsuperscript{m}; Decl. 9\textsuperscript{o} 41\textsuperscript{'} N. Struve, 126; IV. 75. Double; 10th and 12th, or 15th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = 66\textsuperscript{o} 30\textsuperscript{'} sf; single observation. Excessively difficult. These stars are so very faint, that measures entitled to any confidence cannot be obtained. Passy; January 6, 1825; Seven-feet Equatorial. 11th and 15th magnitudes. \[ \begin{align*} \text{Position} &= 65\textsuperscript{o} 56\textsuperscript{'} sf \quad | \quad 5 \text{ Obs.} \quad | \quad \text{Diff. } 3\textsuperscript{o} 50\textsuperscript{'} \\ \text{Distance} &= 22\textsuperscript{''}.602 \pm \quad | \quad 2 \text{ Obs.} \quad | \quad \text{Diff. } 2\textsuperscript{''}.284. \quad \} \text{Steady.} \end{align*} \] Observed when on the meridian. Night very fine; but the measures, particularly those of distance, are so excessively difficult, that I fear they must be considered as liable to some inaccuracy. Passy; February 10, 1825; Seven-feet Equatorial. 11th and 15th magnitudes. \[ \begin{align*} \text{Position} &= 69\textsuperscript{o} 16\textsuperscript{'} sf \quad | \quad 5 \text{ Obs.} \quad | \quad \text{Diff. } 2\textsuperscript{o} 55\textsuperscript{'} \\ \text{Distance} &= 23\textsuperscript{''}.496 \pm \quad | \quad 1 \text{ Obs.} \quad | \quad \text{Diff. } \quad \} \text{Excessively difficult.} \end{align*} \] Measures little better than guesses. The fog is now become so dense, that to persevere in observing, is impossible. Mean Result. Position 67\textsuperscript{o} 30\textsuperscript{'} sf (11 Obs.); Epoch 1825.04; Distance 22\textsuperscript{''}.900 \pm (3 Obs.); Epoch 1825.05. The angle, Feb. 16, 1783, was 61\textsuperscript{o} 36\textsuperscript{'} sf, differing 5\textsuperscript{o} 34\textsuperscript{'} from the present, being a change of +0.132 per annum. The distance at the period above specified was 22\textsuperscript{''}.60, agreeing very exactly with the present. Future observations must decide on the reality of the motion here indicated. (H.) Mr. South's observations of the apparent distances No. CCCCL. R.A. 4ʰ 19ᵐ; Decl. 39° 35' N. 145, 24, or Nova? Double; 7½ and 8th magnitudes. Passy; December 26, 1824; Seven-feet Equatorial. Position = 25° 28' sf | 5 Obs. | Diff. = 1° 21' } Distance = 9''.652 | 5 Obs. | Diff. = 0''.505 } Passy; December 29, 1824; Seven-feet Equatorial. 7½ and 8th magnitudes. Position = 24° 36' sf | 5 Obs. | Diff. = 0° 52' } Distance = 9''.504 | 5 Obs. | Diff. = 0''.745 } Passy; February 11, 1825; Portable Transit. Observed R.A. of the larger star = 4ʰ 19' 29''.74. Mean Result. Position 25° 2' sf; Distance 9''.578; Epoch 1824.99. CCCCLI. R.A. 4ʰ 23ᵐ; Decl. 47° 3' N. Nova; Double; 7½ and 8th magnitudes. Passy; February 9, 1825; Seven-feet Equatorial. Position = 74° 16' sp | 5 Obs. | Diff. = 0° 48' } Distance = 1' 0''.551 | 5 Obs. | Diff. = 0''.601 } Passy; February 11, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Position = 74° 21' sp | 5 Obs. | Diff. = 0° 48' } Distance = 1' 0''.357 | 5 Obs. | Diff. = 0''.505 } Passy; February 11, 1825; Portable Transit. Observed R.A. of the larger star = 4ʰ 23' 26''.08. Mean Result. Position 74° 18' sp; Distance 1' 0''.454; Epoch 1825.10. and positions of 458 double and triple stars, &c. No. CCCCLII. R. A. $4^h 26^m$; Decl. $16^\circ 8' N.$ Aldebaran; STRUVE, 129; VI. 66. Double; 1st and 20th magnitudes. Passy; January 16, 1825; Seven-feet Equatorial. Position = $53^\circ 27' nf \pm | 4$ Obs. | Diff. = $1^\circ 12'$. Excessively difficult. Distance about a minute and a half by estimation; observations of distance cannot be procured, the small star being so excessively faint, that it becomes invisible under the slightest illumination. The position here given may be liable to an error of one, or two degrees. Passy; January 19, 1825; Seven-feet Equatorial. 1st and 20th magnitudes. Position = $54^\circ 32' nf \pm | 2$ Obs. | Diff. = $0^\circ 36'$. Excessively difficult. The small star will not bear even the slightest illumination. The night being unusually favourable, I was very anxious to procure, if possible, measures entitled to confidence; and finding all attempts with a power of 179 ineffectual, I applied 273: no advantage however was gained by the change of eye-piece. The observations of position must, I fear, be regarded with distrust, and any of distance with this instrument are altogether impracticable. Mean Result. Position $53^\circ 49' nf \pm (6$ Obs.); Distance about one minute and a half by estimation; Epoch 1825.04. In 1781 the angle was $52^\circ 58' nf$. In 1802 it was measured at $54^\circ 8' nf$: the present is nearly a mean between them. It is clear therefore that no very sensible motion can exist in this star. According to the proper motions set down in PIAZZI's catalogue, the angle of position should be liable to a slow change in the direction $np sf$ or $-,$ amounting however to a quantity hardly cognizable in 40 years. (H.) MDCCCXXVI. Mr. South's observations of the apparent distances No. CCCCLIII. R.A. $4^h\ 27^m$; Decl. $10^\circ\ 5'$ S. Struve, 131; III. 100. Double; 7th and 8th magnitudes. Blackman-street; December 13, 1823; Five-feet Equatorial. | Position = $11^\circ\ 36'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 48'$ | | Distance = $13''.637$ | 6 Obs. | Diff. = $1''.263$ | Blackman-street; January 29, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. | Position = $11^\circ\ 9'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 15'$ | | Distance = $13''.662$ | 5 Obs. | Diff. = $0''.769$ | Difficult. Mean Result. Position $11^\circ\ 22'\ sp$; Distance $13''.634$; Epoch 1824.01. There seems a sensible change of position in this star. In 1783 (Feb. 19) its angle was $16^\circ\ 24'\ sp$. The change amounts to $5^\circ\ 2'$ in the direction $sp\ nf$ or $+$, i.e. to $+0^\circ.123$ per annum. An increase also of $1''.7$ in distance has happened. As the star is an easy one to measure in favourable weather, there is much probability that these changes are owing to real motions. (H.) No. CCCCLIV. R.A. $4^h\ 28^m$; Decl. $26^\circ\ 35'$ N. Struve, 133; Hist. Cæl. 204. Double; equal; each of the 8th magnitude. Blackman-street; December 13, 1823; Five-feet Equatorial. | Position = $60^\circ\ 36'\ nf$ or $sp$ | 5 Obs. | Diff. = $0^\circ\ 33'$ | | Distance = $3''.913$ | 5 Obs. | Diff. = $0''.379$ | Blackman-street; December 30, 1823; Seven-feet Equatorial. Equal; each of the 8th magnitude. | Position = $61^\circ\ 10'\ sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ\ 0'$ | | Distance = $3''.926$ | 5 Obs. | Diff. = $0''.336$ | Mean Result. Position $60^\circ\ 53'\ sp$ or $nf$; Distance $3''.919$; Epoch 1823.97. and positions of 458 double and triple stars, &c. No. CCCCLV. R. A. $4^h\ 31^m$; Decl. $22^\circ\ 36'$ N. $\tau$ Tauri; STRUVE, 134; VI. 7; Double; large, white; small, blue; 5th and $8\frac{1}{2}$ magnitudes. Blackman-street; December 27, 1823; Five-feet Equatorial. Position = $58^\circ\ 33'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 30'$ } Distance = $1'\ 2''.425$ | 5 Obs. | Diff. = $0''.632$ } Blackman-street; December 31, 1823; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $58^\circ\ 24'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 55'$ } Distance = $1'\ 3''.210$ | 5 Obs. | Diff. = $0''.577$ } Rather difficult. Night very hazy. The small star is indistinct. Mean Result. Position $58^\circ\ 28'\ sp$; Distance $1'\ 2''.817$; Epoch 1824.00. No measures of position are given by Sir W. H. The distance does not seem to have changed. (H.) No. CCCCLVI. R. A. $4^h\ 32^m$; Decl. $0^\circ\ 35'$ N. STRUVE, 135; II. 81: Triple; A 9th, B 11th or 12th, and C of the 15th magnitudes. Passy; January 6, 1825; Seven-feet Equatorial. Measures of A B. Position = $56^\circ\ 44'\ np$ | 6 Obs. | Diff. = $2^\circ\ 14'$ } Distance = $6''.494$ | 5 Obs. | Diff. = $1''.649$ } Very difficult. Measures of A C. Position = $60^\circ\ 0'\ sp$ ±; single observation } Distance = $1'\ 44''.412$ ±; single observation } Excessively difficult. The star C is so extremely obscure, that accurate measures cannot be procured; the night is very favourable. Mr. South's observations of the apparent distances No. CCCCLVI. continued. Passy; January 19, 1825; Seven-feet Equatorial. Measures of A B. 9th and 12th magnitudes. Position = $56^\circ 1' np$ | 5 Obs. | Diff. = $9^\circ 9'$ } Excessively difficult. Distance = $6''.417$ | 5 Obs. | Diff. = $0''.505$ } I see the small distant star C, but can neither measure its position or distance. Night fine. Mean Result. of A B. Position $56^\circ 24' np$ (11 Obs.); Distance $6''.455$ (10 Obs.); Epoch 1825.03. of A C. Position $6^\circ 0' sp \pm$; Distance $1' 44''.412 \pm$; Epoch 1825.01. (Single observations.) The position Jan. 31, 1783, was $51^\circ 36' np$, differing $4^\circ 48'$ from the present. (H.) No. CCCCLVII. R. A. $4^h 44^m$; Decl. $1^\circ 34'S$. Struve, 138; Hist. Cæl. 251; Double; nearly equal; $8\frac{1}{2}$ and $8\frac{3}{4}$ magnitudes. Blackman-street; December 9, 1823; Five-feet Equatorial. Position = $84^\circ 21' np$ | 5 Obs. | Diff. = $0^\circ 24'$ } Distance = $41''.697$ | 5 Obs. | Diff. = $0''.632$ } Blackman-street; January 29, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $82^\circ 53' np$ | 5 Obs. | Diff. = $1^\circ 5'$ } Difficult. Distance = $41''.182$ | 5 Obs. | Diff. = $1''.010$ } Passy; March 26, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $83^\circ 48' np$ | 5 Obs. | Diff. = $0^\circ 45'$ } Distance = $41''.591$ | 5 Obs. | Diff. = $1''.202$ } Observed by twilight, without artificial illumination. Mean Result. Position $83^\circ 41' np$; Distance $41''.490$; Epoch 1824.42. No. CCCCLVIII. R. A. $4^h\ 44^m$; Decl. $7^\circ\ 6'N.$ Struve, 139; Hist. Cæl. 42; Double; $9\frac{1}{2}$ and 10th magnitudes. Blackman-street; December 27, 1823; Five-feet Equatorial. Position $= 73^\circ\ 7'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 30'$ } Very difficult. Distance $= 16''.618$ | 5 Obs. | Diff. = $0''.505$ } Neither star bears a good illumination. Blackman-street; January 29, 1824; Seven-feet Equatorial. $9\frac{1}{2}$ and $9\frac{3}{4}$ magnitudes. Position $= 73^\circ\ 10'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 0'$ } Very difficult. Distance $= 17''.249$ | 5 Obs. | Diff. = $1''.034$ } Mean Result. Position $73^\circ\ 8'\ sp$; Distance $16''.933$; Epoch 1824.03. No. CCCCLIX. R. A. $4^h\ 47^m$; Decl. $60^\circ\ 11'N.$ 10, Camelopardali; Struve, 141; VI. 36; Double; 5th and 9th magnitudes; small, blue. Passy; January 5, 1825; Seven-feet Equatorial. Position $= 62^\circ\ 11'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 36'$ } Distance $= 1''\ 20''.276$ | 5 Obs. | Diff. = $0''.721$ } Passy; February 6, 1825; Seven-feet Equatorial. 5th and 9th magnitudes. Position $= 62^\circ\ 25'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 37'$ } Distance $= 1''\ 19''.443$ | 5 Obs. | Diff. = $1''.346$ } Mean Result. Position $62^\circ\ 18'\ sp$; Distance $1''\ 19''.859$; Epoch 1825.05. No measures given by Sir W. Herschel of this star. (H.) Mr. South's observations of the apparent distances No. CCCCLX. R.A. $4^h\ 49^m$; Decl. $1^\circ\ 23'$ N. STRUVE, 145; I. 68; Double; equal; each of the 10th magnitude; a star of the 5th magnitude follows it to the south. Passy; January 6, 1825; Seven-feet Equatorial. Position = $83^\circ\ 41'\ sf$ or $np$ | 7 Obs. | Diff. = $4^\circ\ 34'$ Distance = $2''.301$ | 5 Obs. | Diff. = $0''.481$ Extremely difficult. Observations made with 179; a power of 273 was tried, but without any advantage. The night is remarkably fine, and the stars are very steady. It freezes hard. Passy; January 17, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = $84^\circ\ 25'\ sf$ or $np$ | 5 Obs. | Diff. = $5^\circ\ 30'$ Excessively difficult. Of distance no measures can be obtained, in consequence of the rapid deposition of moisture on each surface of the object-glass. Night very fine; the stars are remarkably brilliant. A slight frost. Passy; February 6, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Distance = $2''.830$ | 5 Obs. | Diff. = $0''.360$ Excessively difficult. The night is become suddenly cloudy; no more observations can be procured. Mean Result. Position $83^\circ\ 49'\ sf$ or $np$ (12 Obs.); Epoch 1825.04; Distance $2''.565$ (10 Obs.); Epoch 1825.06. In 1783, January 22, (1783.06), the Position was $84^\circ\ 54'\ nf$, being a change of $11^\circ\ 17'$ in 42.00 years, in the direction $np\ sf$, or retrograde—that is, $-0''.269$ per annum. The change is so considerable, as to render it highly probable that this star belongs to the class of binary, or connected stars, and should therefore be assiduously watched. (H.) and positions of 458 double and triple stars, &c. No. CCCCLXI. R. A. $4^h\ 50^m$; Decl. $26^\circ\ 25'N$. Struve, 146; Double; 7th and $8\frac{1}{2}$ magnitudes. Passy; December 5, 1824; Seven-feet Equatorial. Position = $68^\circ\ 33'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 29'$ Distance = $1'\ 18''.302$ | 5 Obs. | Diff. = $1''.370$ Passy; December 10, 1824; Seven-feet Equatorial. 7th and 9th magnitudes. Position = $68^\circ\ 40'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 47'$ Distance = $1'\ 18''.321$ | 5 Obs. | Diff. = $0''.865$ The small star is blue. Mean Result. Position $68^\circ\ 36'\ sf$; Distance $1'\ 18''.561$; Epoch 1824.94. No. CCCCLXII. R. A. $4^h\ 51^m$; Decl. $3^\circ\ 22'N$. Struve, 147; Hist. Cael. 465. Double; $6\frac{1}{2}$ and 7th magnitudes. Passy; December 5, 1824; Seven-feet Equatorial. Position = $11^\circ\ 4'sp$ | 5 Obs. | Diff. = $0^\circ\ 47'$ Distance = $21''.601$ | 5 Obs. | Diff. = $0''.336$ On the meridian. Night not very favourable. Passy; December 10, 1824; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $9^\circ\ 45'sp$ | 5 Obs. | Diff. = $0^\circ\ 51'$ Steady. Distance = $22''.423$ | 5 Obs. | Diff. = $1''.202$ The dew is extremely troublesome. Passy; February 4, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $10^\circ\ 30'sp$ | 5 Obs. | Diff. = $1^\circ\ 29'$ Steady. Distance = $21''.399$ | 5 Obs. | Diff. = $0''.745$ Mean Result. Position $10^\circ\ 26'sp$ (15 Obs.); Distance $21''.808$ (15 Obs.); Epoch 1824.99. Mr. South's observations of the apparent distances No. CCCCLXIII. R. A. $4^h\ 52^m$; Decl. $11^\circ\ 7'$ N. Struve, 149; Double; 7th and 12th magnitudes. Passy; February 8, 1825; Seven-feet Equatorial. Position = $60^\circ\ 39'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 29'$ } Excessively difficult. Distance = $33''.787 \pm$ | 3 Obs. | Diff. = $2''.620$ } The small star scarcely bears the least illumination. The observations of distance deserve probably but little confidence. The night is unfavourable. Passy; February 9, 1825; Seven-feet Equatorial. th and 12th magnitudes. Position = $60^\circ\ 11'\ nf$ | 5 Obs. | Diff. = $4^\circ\ 23'$ } Extremely difficult. Distance = $33''.967$ | 5 Obs. | Diff. = $1''.443$ } Mean Result. Position $60^\circ\ 25'\ nf$; (10 Obs.); Distance $33''.604$ (8 Obs.); Epoch 1825.10. No. CCCCLXIV. R. A. $4^h\ 53^m$; Decl. $79^\circ\ 0'$ N. 62 (Bode), Camelopardali; Struve, 152; Double; 7th and 10th magnitudes; small, blue. Passy; February 6, 1825; Seven-feet Equatorial. Position = $76^\circ\ 56'\ np$ | 5 Obs. | Diff. = $0^\circ\ 13'$ } Very steady. Distance = $37''.290$ | 5 Obs. | Diff. = $0''.481$ } Passy; February 8, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $75^\circ\ 50'\ np$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Distance = $36''.734$ | 5 Obs. | Diff. = $1''.010$ } The small star is decidedly blue. Mean Result. Position $76^\circ\ 23'\ np$; Distance $37''.012$; Epoch 1825.10. and positions of 458 double and triple stars, &c. No. CCCCLXV. R. A. $4^h\ 53^m$; Decl. $1^\circ\ 20'$ N. Struve, 150; P. IV. 278. Double; 7th and 8th magnitudes; small, blue. Passy; December 5, 1824; Seven-feet Equatorial. Position = $43^\circ\ 13'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 56'$ Distance = $14''.340$ | 5 Obs. | Diff. = $0''.601$ Passy; December 10, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $40^\circ\ 16'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 1'$ Distance = $14''.907$ | 5 Obs. | Diff. = $0''.481$ Passy; January 16, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $41^\circ\ 36'\ nf$ | 5 Obs. | Diff. = $3^\circ\ 55'$ Distance = $14''.059$ | 5 Obs. | Diff. = $0''.384$ A double star of the 6th class is in the field with this double star: its smaller star has nearly the same right ascension as the larger of the stars here measured. Mean Result. Position $41^\circ\ 42'\ nf$ (15 Obs.); Distance $14''.435$ (15 Obs.); Epoch 1824.97. No. CCCCLXVI. R. A. $4^h\ 57^m$; Decl. $21^\circ\ 27'$ N. 105 Tauri; Struve, 155; VI. 105. Double; 7th and 10th magnitudes; small, blue. Passy; January 17, 1825; Seven-feet Equatorial. Position = $19^\circ\ 8'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 18'$ Extremely difficult. Distance = $1'49''.944$ | 5 Obs. | Diff. = $0''.625$ One hour and a half east of the meridian, at the time of observation. MDCCCXXVI. k Mr. South's observations of the apparent distances No. CCCCLXVI. continued. Passy; January 17, 1825; Seven-feet Equatorial. 7th and 12th magnitudes. Position = $18^\circ 59' sp$ | 5 Obs. | Diff. = $0^\circ 31'$ | Extremely difficult. Distance = $1' 50''.036$ | 5 Obs. | Diff. = $1''.106$ Observed when on the meridian: the small star bears only a very feeble illumination. This set of measures was taken inadvertently; I had omitted to note the star as observed, in the earlier part of the evening. Mean Result. Position $19^\circ 3' sp$; Distance $1' 49''.990$; Epoch 1825.04. Sept. 28, 1783. Position $18^\circ 0' sp$; Dist. $1' 41''.5$, being a change of $1^\circ 3'$ in position and $+7''.5$ in distance; but this last quantity, for the reasons already given, cannot be relied on. There is therefore no reason to presume motion in these stars. (H.) No. CCCCLXVII. R. A. $4^h 59^m$; Decl. $31^\circ 51' N$. Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; October 11, 1825; Seven-feet Equatorial. Position = $16^\circ 12' nf$ | 5 Obs. | Diff. = $3^\circ 12'$ | Extremely difficult. Distance = $4''.221$ | 5 Obs. | Diff. = $0''.216$ Observed when $2\frac{1}{2}$ hours east of the meridian. Night foggy; stars occasionally very faint. Passy; October 16, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $15^\circ 8' nf$ | 5 Obs. | Diff. = $2^\circ 42'$ | Excessively difficult. Distance = $4''.922$ | 5 Obs. | Diff. = $0''.481$ Night foggy, and stars so faint, that with 181 they cannot be seen; observed with 157. Mean Result. Position $15^\circ 46' nf$; Distance $4''.571$; Epoch 1825.78. and positions of 458 double and triple stars, &c. No. CCCCLXVIII. R.A. 5h 0m; Decl. 13° 47' N. Struve, 157; Hist. Cæl. 203. Double; 9th and 10th magnitudes. Passy; December 31, 1824; Seven-feet Equatorial. Position = 72° 23' sf | 5 Obs. | Diff. = 1° 30' } Very difficult. Distance = 27".556 | 5 Obs. | Diff. = 1".010 } These stars bear only a feeble illumination; but the night is unfavourable. Passy; January 2, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 72° 52' sf | 5 Obs. | Diff. = 2° 10' } Excessively difficult. Distance = 26".811 | 5 Obs. | Diff. = 1".515 } Mean Result. Position 72° 37' sf; Distance 27".183; Epoch 1825.00. No. CCCCLXIX. R.A. 5h 4m; Decl. 2° 38' N. 145.21, or Nova? Double; 7th and 10th magnitudes: small, decidedly blue, and bears a good illumination. Passy; February 12, 1825; Seven-feet Equatorial. Position = 28° 33' nf | 5 Obs. | Diff. = 4° 42' } Unsteady. Distance = 6".670 | 5 Obs. | Diff. = 0".577 } Passy; February 17, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 27° 30' nf | 5 Obs. | Diff. = 2° 30' } Very unsteady. Distance = 7".439 | 5 Obs. | Diff. = 0".697 } Passy; February 23, 1825; Portable Transit. Observed R.A. of the larger star = 5h 4' 10".83. Mean Result. Position 28° 1' nf; Distance 7".054; Epoch 1825.12. Mr. South's observations of the apparent distances No. CCCCLXX. R. A. $5^h 5^m$; Decl. $17^\circ 40' S.$ Struve, 161; Hist. Cael. 562. Double; 10th and $10\frac{1}{2}$ magnitudes. Passy; January 17, 1825; Seven-feet Equatorial. Position = $7^\circ 43'\ n p$ | 5 Obs. | Diff. = $0^\circ 30'$ } Excessively difficult. Distance = $48''.652$ | 5 Obs. | Diff. = $0''.721$ } Neither star bears sufficient illumination, and the observations of distance may perhaps be a little inaccurate. Passy; January 19, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position = $7^\circ 33'\ n p$ | 5 Obs. | Diff. = $1^\circ 2'$ } Excessively difficult. Distance = $47''.956$ | 5 Obs. | Diff. = $1''.443$ } Mean Result. Position $7^\circ 38'\ n p$; Distance $48''.304$; Epoch 1825.05. No. CCCCLXXI. R. A. $5^h 5^m$; Decl. $33^\circ 9' N.$ Struve, 162; II. 48. Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; December 5, 1824; Seven-feet Equatorial. Position = $18^\circ 5'\ s p$ | 5 Obs. | Diff. = $1^\circ 32'$ } Distance = $2''.837$ | 5 Obs. | Diff. = $0''.553$ } Passy; December 22, 1824; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $17^\circ 9'\ s p$ | 5 Obs. | Diff. = $3^\circ 10'$ } Distance = $2''.808$ | 5 Obs. | Diff. = $0''.865$ } Mean Result. Position $17^\circ 37'\ s p$; Distance $2''.822$; Epoch 1824.95. The position in 1783 was $15^\circ 48'\ n f$, so that there is no reason to suppose any change in this star, as there is so little difference in their magnitudes, that the larger might easily be mistaken for the smaller, and thus $180^\circ$ difference in position arise. (H.) No. CCCCLXXII. R. A. $5^h6^m$; Decl. $39^\circ58'$ N. λ Aurigæ; STRUVE, 164; V. 22. Triple; A 5th, B 11th, and C of the 12th magnitudes. Measures of A.B. Passy; February 9, 1825; Seven-feet Equatorial. Position = $55^\circ24'nf$ | 5 Obs. | Diff. = $1^\circ29'$ } Extremely difficult. Distance = $1'42''.646$ | 5 Obs. | Diff. = $1''.827$ Passy; February 12, 1825; Seven-feet Equatorial. 5th and 11th magnitudes. Position = $55^\circ25'nf$ | 5 Obs. | Diff. = $0^\circ16'$ } Extremely difficult. Distance = $1'41''.640$ | 5 Obs. | Diff. = $2''.356$ The small star to-night will bear but the slightest illumination. North preceding, and at about the same distance, is a star of the 15th magnitude; but it is so excessively faint, that neither its angle with, or distance from A can be observed; yet the night is very clear. Measures of A.C. Passy; February 9, 1825; Seven-feet Equatorial. 5th and 12th magnitudes. Position = $8^\circ23'nf$ | 2 Obs. | Diff. = $0^\circ33'$. Excessively difficult. The distance I cannot obtain; the small star C will not bear the slightest illumination. The star C is also itself double of the 5th class; but although the night is remarkably fine, I cannot get even approximate measures of it. Passy; February 12, 1825; Seven-feet Equatorial. 5th and 12th magnitudes. Position = $8^\circ33'nf$ | 5 Obs. | Diff. = $0^\circ18'$ } Excessively difficult. Distance = $3'13''.941$ | 5 Obs. | Diff. = $1''.034$ The star C seen double of the 5th class; but its small star, which is south preceding, is so very obscure, that my attempts to procure measures of it have been unsuccessful; yet the night is exceedingly fine. Mean Result. of A.B. Position $55^\circ24'nf$; Distance $1'42''.143$. of A.C. Position $8^\circ30'nf$(7 Obs.); Distance $3'13''.941$(5 Obs.); Epoch 1825.10. Sir W. HERSCHEL has no measures of this star. (H.) Mr. South's observations of the apparent distances No. CCCCCLXXIII. R. A. $5^h\ 10^m$; Decl. $15^\circ\ 26'$ S. Struve, 168; Hist. Cael. 467. Double; 8th and 10th magnitudes. Passy; December 31, 1824; Seven-feet Equatorial. Position = $32^\circ\ 50'\ np$ | 5 Obs. | Diff. = $0^\circ\ 28'$ Very difficult. The night is suddenly become bad; observations of distance impracticable. Passy; January 25, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $34^\circ\ 13'\ np$ | 5 Obs. | Diff. = $3^\circ\ 35'$ Extremely difficult. Distance = $20''.932$ | 5 Obs. | Diff. = $1''.995$ The small star bears only the slightest illumination. Night fine. Passy; February 5, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $35^\circ\ 1'\ np$ | 5 Obs. | Diff. = $1^\circ\ 19'$ Extremely difficult. Distance = $20''.757$ | 5 Obs. | Diff. = $0''.841$ Mean Result. Position $34^\circ\ 1'\ np$ (15 Obs.); Epoch 1825.05. Distance $20''.844$ (10 Obs.); Epoch 1825.07. No. CCCCLXXIV. R. A. $5^h\ 11^m$; Decl. $10^\circ\ 56'$ S. Struve, 169; Hist. Cael. 313. Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; December 5, 1824; Seven-feet Equatorial. Position = $10^\circ\ 35'\ np$ | 5 Obs. | Diff. = $1^\circ\ 28'$ Distance = $10''.713$ | 5 Obs. | Diff. = $0''.721$ Passy; December 10, 1824; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $3^\circ\ 5'\ np$ | 5 Obs. | Diff. = $1^\circ\ 25'$ On the meridian. Distance = $11''.166$ | 5 Obs. | Diff. = $0''.721$ Passy; February 5, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position $3^\circ\ 47'\ np$ | 5 Obs. | Diff. = $1^\circ\ 45'$ Mean Result. Position $2^\circ\ 49'\ np$ (15 Obs.) ; Epoch 1824.99; Distance $10''.939$ (10 Obs.); Epoch 1824.94. No. CCCCLXXV. R.A. $5^h\ 12^m$; Decl. $8^\circ\ 13'$ S. 82 (Bode) Orionis; Struve, 171; IV. 87. Double; 8th and 10th magnitudes. Passy; January 17, 1825; Seven-feet Equatorial. Position = $86^\circ\ 32'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 33'$ } Very difficult. Distance = $35''.436$ | 5 Obs. | Diff. = $0''.649$ } Passy; January 19, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $86^\circ\ 41'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 3'$ } Very difficult. Distance = $36''.953$ | 5 Obs. | Diff. = $0''.841$ } Passy; February 9, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Distance = $34''.645$ | 5 Obs. | Diff. = $1''.274$. Very difficult. Mean Result. Position $86^\circ\ 46'\ nf$ (10 Obs.) ; Epoch 1825.05 ; Distance $35''.678$ (15 Obs.) ; Epoch 1825.06. By a mean of two measures in 1783, the position comes out for that epoch $85^\circ\ 24'$, differing but $1^\circ\ 22'$ from the present. The distance at the beginning of 1783 was $29''.30$, and the measure is called very exact; yet an increase of distance to the extent of $6''.38$ is beyond probability, a circumstance which proves the occasional occurrence of the micrometrical error already pointed out, even in distances so low as $30''$. (H.) Mr. South's observations of the apparent distances No. CCCCLXXVI. R. A. 5\textsuperscript{h} 12\textsuperscript{m}; Decl. 18° 43' S. Struve, 170; Hist. Cæl. 562. Double; equal, each 7\(\frac{1}{2}\) magnitude. Passy; December 5, 1824; Seven-feet Equatorial. Position = 72° 39' nf or sp | 5 Obs. | Diff. = 1° 31' | Distance = 39''.740 | 5 Obs. | Diff. = 1''.563 | Passy; December 10, 1824; Seven-feet Equatorial. Equal; each 7\(\frac{1}{2}\) magnitude. Position = 72° 43' nf or sp | 5 Obs. | Diff. = 1° 8' | Distance = 39''.687 | 5 Obs. | Diff. = 0''.577 | Night favourable, observed on the meridian. Mean Result. Position 72° 41' nf or sp; Distance 39''.713; Epoch 1824.94. No. CCCCLXXVII. R. A. 5\textsuperscript{h} 13\textsuperscript{m}; Decl. 34° 43' N. Struve, 173; IV. 101. Double; 9th and 12th magnitudes. Passy; December 23, 1824; Seven-feet Equatorial. Position = 77° 15' np | 5 Obs. | Diff. = 2° 3'. Extremely difficult. Observations of distance cannot be obtained; the night is become very cloudy. Passy; January 25, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = 75° 33' np | 5 Obs. | Diff. = 1° 7' | Distance = 32''.075 | 5 Obs. | Diff. = 0''.553 | Passy; February 2, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 75° 55' np | 5 Obs. | Diff. = 0° 30' | Distance = 31''.853 | 5 Obs. | Diff. = 0''.962 | Mean Result. Position 76° 14' np (15 Obs.); Epoch 1825.04; Distance 31''.964 (10 Obs.); Epoch 1825.07. This measure of position, compared with that of 1783, presents only 14' of difference. The distances are however evidently not comparable, owing to the micrometrical irregularity already pointed out. (H.) and positions of 458 double and triple stars, &c. No. CCCCLXXVIII. R. A. 5\textsuperscript{h} 14\textsuperscript{m}; Decl. 17\textsuperscript{o} 13\textsuperscript{'} N. 111 Tauri; Struve, 174; V. 110. Double; 7th and 10th magnitudes; small, blue. Passy; January 17, 1825; Seven-feet Equatorial. Position = 1\textsuperscript{o} 25\textsuperscript{'} np | 5 Obs. | Diff. = 0\textsuperscript{o} 34\textsuperscript{'} \{ Difficult. Distance = 1\textsuperscript{'} 1\textsuperscript{''}.823 | 5 Obs. | Diff. = 1\textsuperscript{''}.418 \} Passy; February 2, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = 1\textsuperscript{o} 10\textsuperscript{'} np | 5 Obs. | Diff. = 0\textsuperscript{o} 52\textsuperscript{'} \{ Very difficult. Distance = 1\textsuperscript{'} 1\textsuperscript{''}.703 | 5 Obs. | Diff. = 0\textsuperscript{''}.481 \} When the position wire was set purposely to zero, the small star remained below the wire, whilst the larger continued bisected by it, during their passage across the field. Mean Result. Position 1\textsuperscript{o} 17\textsuperscript{'} np; Distance 1\textsuperscript{'} 1\textsuperscript{''}.763; Epoch 1825.06. There is no reason to suppose a change of position in this star, the angle of 1783 being 3\textsuperscript{o} 48\textsuperscript{'} np. (H.) No. CCCCLXXIX. R. A. 5\textsuperscript{h} 16\textsuperscript{m}; Decl. 1\textsuperscript{o} 39\textsuperscript{'} N. Nova; Double; 9th and 10th magnitudes. Passy; March 5, 1825; Seven-feet Equatorial. Position = 52\textsuperscript{o} 18\textsuperscript{'} sp | 6 Obs. | Diff. = 1\textsuperscript{o} 58\textsuperscript{'} Extremely difficult. The night is become so bad, that observations of distance cannot be procured; it is probably between 40 and 50 seconds. Passy; March 5, 1825; Portable Transit. Observed R. A. of the larger star = 5\textsuperscript{h}.15\textsuperscript{'}34\textsuperscript{''}.23. Passy; March 17, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 50\textsuperscript{o} 34\textsuperscript{'} sp | 5 Obs. | Diff. = 0\textsuperscript{o} 52\textsuperscript{'} \{ Extremely difficult. Distance = 46\textsuperscript{''}.427 | 5 Obs. | Diff. = 1\textsuperscript{''}.010 \} Mr. South's observations of the apparent distances No. CCCCLXXIX. continued. Passy; March 26, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $51^\circ 1' sp$ | 5 Obs. | Diff. = $0^\circ 33'$ | Very difficult. Distance = $46''.833$ | 5 Obs. | Diff. = $1''.106$ Observed by twilight, without artificial illumination. A distant star C of the 5th magnitude follows A to the North. Measures of A C. Passy; March 17, 1825; Seven-feet Equatorial. Position = $54^\circ 44' nf$ | 5 Obs. | Diff. = $0^\circ 29'$ | By twilight. Distance = $2' 38''.690$ | 5 Obs. | Diff. = $0''.865$ Without artificial illumination. Passy; March 26, 1825; Seven-feet Equatorial. 9th and 5th magnitudes. Position = $54^\circ 46' nf$ | 3 Obs. | Diff. = $0^\circ 32'$ | By twilight. Distance = $2' 37''.615$ | 3 Obs. | Diff. = $0''.456$ Without artificial illumination. Mean Result. of A B. Position $51^\circ 21' sp$ (16 Obs.); Epoch 1825.20; Distance $46''.630$ (10 Obs.); Epoch 1825.22. of A C. Position $54^\circ 45' nf$ (8 Obs.); Distance $2' 38''.162$ (8 Obs.); Epoch 1825.22. The star C being to the north of A. No. CCCCLXXX. R. A. $5^h 16^m$; Decl. $1^\circ 45' N.$ Struve, 177; I. 52. Double; 9th and 12th magnitudes; small, blue. Passy; January 6, 1825; Seven-feet Equatorial. Position = $54^\circ 51' np$ | 7 Obs. | Diff. = $6^\circ 0'$ | Excessively difficult. Distance = $2''.974$ | 5 Obs. | Diff. = $0''.432$ Observed when 15 minutes west of the meridian. Stars very steady. The deposition of moisture on the inner and outer surfaces of the object-glass is becoming troublesome. Thermometer in the observatory stands at $24\frac{1}{2}$ degrees. No. CCCCLXXX. continued. Passy; February 4, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $49^\circ 42' np$ | 7 Obs. | Diff. = $5^\circ 5'$ | Excessively difficult. Distance = $2''.991$ | 5 Obs. | Diff. = $0''.408$ Whilst making these observations, I did not feel the slightest confidence in their accuracy; the smaller star could only be seen by glimpses, and then very indistinctly; indeed this double star, as well as the 53rd of the 1st class (see the following page), would be proper objects for Mr. Herschel's 20-feet reflector. Passy; February 23, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $47^\circ 23' np$ | 6 Obs. | Diff. = $7^\circ 11'$ | Excessively difficult. The night is tolerably good, but no measures of distance can be obtained. The stars, at the time of observation, were 50 minutes west of the meridian. The discordance between the first and two subsequent series of observations of position, is very considerable; it would seem to indicate an error in the measures obtained on the 6th of January; against them there is however nothing in the shape of memorandum, to be found in the rough journal; on the contrary, the night of January the 6th was one of uncommon fineness. I have tried to re-observe this star several mornings during the present and the last months, but without success; indeed, except the weather is unusually favourable, the star, with my instruments, can scarcely be recognized as double. Passy, October 22, 1825. Mean Result. Position $50^\circ 48' np$ (20 Obs.); Epoch 1825.08; Distance $2''.982$ (10 Obs.); Epoch 1825.05. The mean of four angles in 1782 and 1783 gives $51^\circ 47' np$ for the position of this star (Sir W. H. MSS.) A measure in 1802 makes it $50^\circ 1' np$ "very exact." This star then is liable to no change of position. (H.) Mr. South's observations of the apparent distances No. CCCCLXXXI. R. A. $5^h 17^m$; Decl. $2^\circ 46'$ N. Struve, 180; I. 53. Double; 8th and 12th magnitudes; small star decidedly blue, and bears but a very feeble illumination. A star of the 8th magnitude precedes it to the north. Passy: January 6, 1825; Seven-feet Equatorial. Position = $45^\circ 28' nf$ | 7 Obs. | Diff. = $6^\circ 1'$ } Excessively difficult. Distance = $3''.999$ | 5 Obs. | Diff. = $0''.505$ Observed on the meridian, Night unusually fine. A double star of the 6th class follows this to the north, but is too faint for measures of accuracy. Passy; February 11, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $37^\circ 10' nf$ | 7 Obs. | Diff. = $2^\circ 56'$ } Excessively difficult. Distance = $3''.304$ | 5 Obs. | Diff. = $0''.336$ Stars extremely unsteady. On the meridian when observed. Passy; February 23, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $38^\circ 49' nf$ | 7 Obs. | Diff. = $6^\circ 17'$ } Excessively difficult. Distance = $3''.777$ | 5 Obs. | Diff. = $0''.408$ Observed when 35 minutes west of the meridian. The small star is decidedly light blue. The observations of position of this double star are by no means satisfactory. The two last sets agree sufficiently well, but differ to an enormous extent with the first series; yet the night of the 6th of January was remarkably favourable for delicate observations, and there is nothing prejudicial to their accuracy entered in the rough Journal. I have tried to re-observe this double star during the present autumn, but unfavourable weather has prevented me even from seeing it, as a double star. Passy; October 22, 1825. Mean Result. Position $40^\circ 29' nf$ (21 Obs.); Distance $3''.393$ (15 Obs.); Epoch 1825.09. In 1783 the position was $43^\circ 24' nf$, and a measure in 1802 gave $44^\circ 6' nf$ for the angle, so that no change of consequence can have taken place in this star. (H.) and positions of 458 double and triple stars, &c. No. CCCCLXXXII. R. A. $5^h\ 17^m$; Decl. $11^\circ\ 28'$. S. Struve, 179; Hist. Cæl. 563. Double; 10th and $10\frac{1}{2}$ magnitudes; pale; ill defined stars, bearing scarcely any illumination. Passy; January 17, 1825; Seven-feet Equatorial. Position = $75^\circ\ 36'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 11'$ } Extremely difficult. Distance = $12''.978$ | 5 Obs. | Diff. = $0''.505$ } Passy; January 19, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position = $76^\circ\ 12'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 52'$ } Extremely difficult. Distance = $11''.385$ | 5 Obs. | Diff. = $1''.082$ } Passy; February 9, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Distance = $11''.399$ | 5 Obs. | Diff. = $1''.346$. Extremely difficult. The night is remarkably fine. Mean Result. Position $75^\circ\ 54'\ sp$; Epoch 1825.05; Distance $11''.392$; Epoch 1825.09. (Rejecting the observations of Distance made January 17th.) No. CCCCLXXXIII. R. A. $5^h\ 17^m$; Decl. $33^\circ\ 38'$. N. Nova; Double; 7th and 9th magnitudes; several stars in the field. Passy; February 12, 1825; Seven-feet Equatorial. Position = $30^\circ\ 58'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 1'$ } Difficult. Distance = $1'\ 27''.771$ | 5 Obs. | Diff. = $1''.034$ } The small star bears a very insufficient illumination. Passy; February 17, 1825; Seven-feet Equatorial. 8th and $9\frac{1}{2}$ magnitudes. Position = $30^\circ\ 49'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 40'$ } Difficult. Distance = $1'\ 27''.434$ | 5 Obs. | Diff. = $1''.563$ } The small star is faint. Mean Result. Position $30^\circ\ 53'\ nf$; Distance $1'\ 27''.602$; Epoch 1825.11. Mr. South's observations of the apparent distances No. CCCCLXXXIV. R. A. 5\textsuperscript{h} 18\textsuperscript{m}; Decl. 33\textsuperscript{o} 21\textsuperscript{'} N. Nova; Double; 8th and 8\(\frac{1}{2}\) magnitudes. Passy; February 12, 1825; Seven-feet Equatorial. Position \(= 80^\circ 15'\) sf | 5 Obs. | Diff. = \(1^\circ 35'\) \\ Distance \(= 59''.534\) | 5 Obs. | Diff. = \(0''.793\) \{ . . . . A star of the 11th magnitude is sf about \(38^\circ \pm\), and distant nearly \(2\frac{1}{2}\) times as far from the larger of these two stars, as they are from each other. No measures of it can be procured. Night very fine. Passy; February 17, 1825; Seven-feet Equatorial. 8th and 8\(\frac{1}{2}\) magnitudes. Position \(= 79^\circ 47'\) sf | 5 Obs. | Diff. = \(1^\circ 2'\) \\ Distance \(= 58''.562\) | 5 Obs. | Diff. = \(0''.962\) \{ . . . . Passy; February 18, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Distance \(= 58''.646\) | 3 Obs. | Diff. = \(0''.288\). Very difficult. The night is become cloudy; no more observations can be procured. Mean Result. Position \(80^\circ 1'sf\); Epoch 1825.12; Distance \(58''.955(13\) Obs.\); Epoch 1825.12. No. CCCCLXXXV. R. A. 5\textsuperscript{h} 19\textsuperscript{m}; Decl. 29\textsuperscript{o} 24\textsuperscript{'} N. Struve, 183; IV. 110. Double; 7th and 10th magnitudes. Passy; February 23, 1825; Seven-feet Equatorial. Position \(= 82^\circ 10'\) np | 5 Obs. | Diff. = \(1^\circ 19'\) \{ Very difficult. Distance \(= 15''.261\) | 5 Obs. | Diff. = \(0''.721\) \{ . . . . Passy; March 5, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position \(= 81^\circ 34'\) np | 5 Obs. | Diff. = \(1^\circ 27'\) \{ Extremely difficult. Distance \(= 15''.631\) | 5 Obs. | Diff. = \(0''.481\) \{ . . . . The small star scarcely bears the most feeble illumination. Night not very favourable. No. CCCCLXXXV. continued. Mean Result. Position $81^\circ 52' np$; Distance $15''.446$; Epoch 1825.17. A measure of the position of this star in 1783 gave $74^\circ 54' np$, which differs $6^\circ 58'$ from the present angle, being a change of $\pm 0^\circ.170$ per annum, a very considerable quantity for so distant a star. However, the great difficulty of the measures must make us cautious in ascribing this to a real motion. The distance presents no sensible alteration. (H.) No. CCCCLXXXVI. R. A. $5^h 26^m$; Decl. $5^\circ 32'S$. $\theta$ Orionis; Struve, 194; III. 1. Quintuple; A of the 6th, B the 7th, C $7\frac{1}{4}$, D of the 8th, and E of the 12th magnitudes. The four first stars form the Trapezium, in the nebula of Orion. Measures of A B. Blackman-street; December 27, 1823; Five-feet Equatorial. | Position = $40^\circ 16' np$ | 8 Obs. | Diff. = $4^\circ 39'$ | |---|---|---| | Distance = $13''.293$ | 8 Obs. | Diff. = $0''.979$ | Hazy. Blackman-street; December 29, 1823; Seven-feet Equatorial. 7th and 8th magnitudes. | Position = $40^\circ 5' np$ | 8 Obs. | Diff. = $2^\circ 25'$ | |---|---|---| | Distance = $14''.131$ | 3 Obs. | Diff. = $0''.192$ | Unsatisfactory. No more observations of distance can be obtained: the night is become cloudy; indeed whilst those here given were procured, the stars were only visible by glimpses, and then were very indistinct. Blackman-street; December 30, 1823; Seven-feet Equatorial. 6th and 7th magnitudes. | Position = $41^\circ 3' np$ | 6 Obs. | Diff. = $2^\circ 2'$ | |---|---|---| | Distance = $13''.851$ | 6 Obs. | Diff. = $1''.034$ | Tolerably steady. Mr. South's observations of the apparent distances No. CCCCLXXXVI. continued. Passy; March 17, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $41^\circ 29' np$ | 5 Obs. | Diff. = $1^\circ 8'$ Steady. Distance = $13''.140$ | 5 Obs. | Diff. = $0''.529$ Observed when $1\frac{1}{2}$ hour west of the meridian; but the night very favourable. Passy; March 18, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $41^\circ 53' np$ | 5 Obs. | Diff. = $0^\circ 54'$ Tolerably steady. Distance = $12''.849$ | 5 Obs. | Diff. = $0''.745$ Measures of A C. Blackman-street; January 26, 1824; Five-feet Equatorial. 6th and 7½ magnitudes. Position = $29^\circ 12' nf$ | 5 Obs. | Diff. = $2^\circ 13'$ Night hazy. Distance = $13''.558$ | 5 Obs. | Diff. = $0''.474$ Blackman-street; January 27, 1824; Seven-feet Equatorial. 7th and 8½ magnitudes. Position = $30^\circ 39' nf$ | 5 Obs. | Diff. = $1^\circ 12'$. Night unfavourable. Distance = $14''.224$ | 5 Obs. | Diff. = $0''.192$. Stars very faint. Passy; March 17, 1825; Seven-feet Equatorial. 6th and 7½ magnitudes. Position = $29^\circ 35' nf$ | 5 Obs. | Diff. = $1^\circ 31'$ Steady. Distance = $13''.202$ | 5 Obs. | Diff. = $1''.226$ Observed when $1\frac{3}{4}$ west of the meridian; but the night very favourable. Passy; March 18, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $30^\circ 18' nf$ | 5 Obs. | Diff. = $2^\circ 15'$ By twilight. Distance = $13''.346$ | 5 Obs. | Diff. = $0''.529$ Observed without artificial illumination. Measures of A D. Blackman-street; January 26, 1824; Five-feet Equatorial. 6th and 8½ magnitudes. Position = $76^\circ 9' np$ | 5 Obs. | Diff. = $1^\circ 25'$ Night unfavourable. Distance = $17''.430$ | 5 Obs. | Diff. = $0''.947$ No. CCCCLXXXVI. continued. Blackman-street; January 27, 1824; Seven-feet Equatorial. 6th and 8½ magnitudes. Position = $72° 49' np$ | 5 Obs. | Diff. = $1° 43'$ Distance = $16''.465$ | 5 Obs. | Diff. = $0''.986$ Same date; Five-feet Equatorial. Position = $75° 33' np$ | 6 Obs. | Diff. = $2° 8'$. Observed when two hours west of the meridian. Passy; March 17, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $74° 52' np$ | 5 Obs. | Diff. = $1° 39'$ Very steady. Distance = $16''.132$ | 5 Obs. | Diff. = $1''.106$ Observed when two hours west of the meridian, but under favourable circumstances. Passy; March 18, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $75° 45' np$ | 5 Obs. | Diff. = $0° 42'$ Tolerably steady. Distance = $16''.713$ | 5 Obs. | Diff. = $1''.010$ Measures of A E. Blackman-street; December 30, 1823; Seven-feet Equatorial. 6th and 12th magnitudes. Position = $57° 30' nf±$; single observation. Measures of distance cannot be obtained, for the small star under the slightest illumination becomes invisible. Blackman-street; January 26, 1824; Five-feet Equatorial. 6th and 12th magnitudes. Position = $58° 35' nf±$; single measure. No observation of distance can be procured. MDCCCXXVI. Mr. South's observations of the apparent distances No. CCCCLXXXVI. continued. Blackman-street; January 27, 1824; Five-feet Equatorial. 6th and 12th magnitudes. Position = $59^\circ 20' nf \pm$; single observation. The small star will not bear the slightest illumination; measures of distance impracticable. Passy; March 18, 1825; Seven-feet Equatorial. 6½ and 12th magnitudes. Distance = $1' 59''.309 \pm | 5$ Obs. | Diff. = $1''.370$. Excessively difficult. The star E is also double of the 5th class; but its smaller star, which is south preceding, is so extremely faint, that although the night is unusually fine, I cannot obtain even approximate measures of it. Passy; March 24, 1825; Seven-feet Equatorial. 6th and 12th magnitudes. Distance = $1'56''.920 \pm | 5$ Obs. | Diff. = $0''.793$. Excessively difficult. Observations liable to some inaccuracy. Mean Result. of A B. Position $48^\circ 48' np$ (32 Obs.); Distance $13''.453$ (25 Obs.); Epoch 1824.48. of A C. Position $29^\circ 56' nf$ (20 Obs.); Distance $13''.582$ (20 Obs.); Epoch 1824.64. of A D. Position $75^\circ 3' np$ (26 Obs.); Distance $16''.685$ (20 Obs.); Epoch 1824.64. of A E. Position $58^\circ 28' nf \pm$ (3 Obs.); Epoch 1824.05; Distance $1' 58''.114 \pm$ (10 Obs.); Epoch 1825.21. In taking the mean, each observation has been allowed equally good. No. CCCCLXXXVII. R. A. $5^h\ 26^m$; Decl. $21^\circ\ 53'N.$ STRUVE, 192; I. 70. Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; December 29, 1824; Seven-feet Equatorial. Position = $21^\circ\ 24'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 11'$ } Difficult. Distance = $3''.128$ | 5 Obs. | Diff. = $0''.601$ } Difficult. Passy; January 2, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $21^\circ\ 0'\ sp$ | 6 Obs. | Diff. = $6^\circ\ 56'$ } Extremely difficult. Distance = $2''.450$ | 5 Obs. | Diff. = $0''.432$ } Extremely difficult. Passy; February 2, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $22^\circ\ 32'\ sp$ | 6 Obs. | Diff. = $3^\circ\ 32'$ } Unsteady. Distance = $3''.332$ | 5 Obs. | Diff. = $0''.240$ } Unsteady. Measures extremely difficult. Night unfavourable. Mean Result. Position $21^\circ\ 39'\ sp$ (17 Obs.) ; Distance $2''.970$ (15 Obs.); Epoch 1825.03. The position at the Epoch 1782.86 was $36^\circ\ 24'\ sp$. A change therefore of $+14^\circ\ 45'$ has taken place in the angle of this star, being $+0''.350$ per annum, direct, or in the direction $sp\ nf$. This is too large a quantity to be attributed to error of observation, and the star therefore in all probability belongs to the class of binary systems, and should be carefully watched. (H.) Mr. South's observations of the apparent distances No. CCCCLXXXVIII. R. A. $5^h\ 26^m$; Decl. $5^\circ\ 34'$ S. Seq. $1^{ma}$. $\theta$ Orionis; Nova; Double; 6th and 7th magnitudes. Blackman-street; January 26, 1824; Five-feet Equatorial. Position = $2^\circ\ 3'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 46'$ } Night very unfavourable. Distance = $52''.429$ | 5 Obs. | Diff. = $1''.674$ } The first of these stars follows A of $\theta$ Orionis about seven seconds of time, and is about $1' \ 32''$ to the south of it. Blackman-street; January 27, 1824; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $1^\circ\ 9'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 38'$ } Distance = $51''.364$ | 5 Obs. | Diff. = $0''.962$ } Passy; March 24, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Distance = $52''.409$ | 5 Obs. | Diff. = $0''.529$. Very steady. Observed by twilight, without artificial illumination. Mean Result. (The observations of distance taken January 27, 1824, being rejected) Position $1^\circ\ 46'\ s.f$; Epoch 1824.07; Distance $52''.418$; Epoch 1824.64. Observations to connect this double star with $\theta$ Orionis. Measures of A of $\theta$, and of A of the following double star. Passy; March 19, 1825; Seven-feet Equatorial. Position = $43^\circ\ 32'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 40'$ } Very satisfactory. Distance = $2' \ 14''.900$ | 5 Obs. | Diff. = $0''.601$ } Observed by daylight, the sun shining. Passy; March 24, 1825; Seven-feet Equatorial. Position = $43^\circ\ 41'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 18'$ } Very steady, Distance = $2' \ 14''.833$ | 5 Obs. | Diff. = $0''.481$ } Observed by daylight; observations good. Mean Result. Position $43^\circ\ 36'\ s.f$ Distance $2' \ 14''.866$; Epoch 1825.22. (The star A of the following double star being to the south of A of $\theta$ Orionis.) No. CCCCLXXXIX. R. A. $5^h\ 26^m$; Decl. $6^\circ\ 7'$ S. Præc. $\iota$ Orionis; Nova; Double; 7th and $7\frac{1}{2}$ magnitudes. If $\iota$ Orionis be brought into the centre of the field, this double star will be found in the apparent upper part of it; a line drawn through the centres of its two stars will pass to the north of $\iota$ Orionis; its larger star precedes $\iota$ 23 seconds of time, and is about $5\frac{1}{2}$ minutes to the south of it. Blackman-street; January 30, 1824; Five-feet Equatorial. Position = $49^\circ\ 21'\ sp\ |\ 5$ Obs. | Diff. = $1^\circ\ 5'$. Difficult. The night is very bad; stars too faint for accurate measures of distance; the small star of $\iota$ Orionis is invisible. Blackman-street; February 1, 1824; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $49^\circ\ 1'\ sp\ |\ 5$ Obs. | Diff. = $0^\circ\ 53'$ Unsatisfactory. Distance = $37''.438\ |\ 5$ Obs. | Diff. = $1''.010$ Stars very unsteady; night by no means good. Blackman-street; February 9, 1824; Five-feet Equatorial. 6th and 7th magnitudes. Distance = $36''.338\ |\ 5$ Obs. | Diff. = $0''.947$. Very unsteady. Passy; March 26, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Distance = $37''.571\ |\ 5$ Obs. | Diff. = $0''.745$. Tolerably steady. Observed by twilight, without artificial illumination. Mean Result. Position $49^\circ\ 11'\ sp$; Epoch 1824.08; Distance $37''.116$ (15 Obs.); Epoch 1824.47. No. CCCCXC. R. A. $5^h\ 27^m$; Decl. $5^\circ\ 34'$ S. Seq. $2^{nd}$. $\theta$ Orionis; Nova; Double; 9th and 12th magnitudes. The larger of these stars follows the bright star A of $\theta$ Orionis, about 15 seconds of time, and is about $1'\ 49''$ to the south of it. Passy; February 17, 1825; Seven-feet Equatorial. Position = $56^\circ\ 3'\ s\ p$ | 7 Obs. | Diff. = $1^\circ\ 40'$ } Extremely difficult. Distance = $1'\ 17''.609$ | 5 Obs. | Diff. = $0''.889$ } Night clear, but the stars are unsteady. Passy; February 23, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $55^\circ\ 45'\ s\ p$ | 5 Obs. | Diff. = $0^\circ\ 56''$ } Very difficult. Distance = $1'\ 17''.751$ | 5 Obs. | Diff. = $1''.082$ } Mean Result. Position $55^\circ\ 56'\ s\ p$ (12 Obs.); Distance $1'\ 17''.680$ ; Epoch 1825.21. No. CCCCXCI. R. A. $5^h\ 27$; Decl. $6^\circ\ 2'$ S. Orionis; Struve, 195; III. 12. Triple; large, white; the small stars, particularly the nearest, decidedly blue. A of the 4th, B of the 11th or 12th, and C of the 15th magnitudes. Measures of A B. Blackman-street; February 1, 1824; Seven-feet Equatorial. Position = $52^\circ\ 13'\ s\ f$ | 14 Obs. | Diff. = $7^\circ\ 30'$ } Extremely difficult. Distance = $13''.518$ | 6 Obs. | Diff. = $1''.202$ } Night is clear, but the stars are very unsteady. No. CCCCXCI. continued. Same date; Five-feet Equatorial. Position = $52^\circ 11' sf$ | 8 Obs. | Diff. = $3^\circ 37'$ Very difficult. Distance = $10''.867$ | 3 Obs. | Diff. = $1''.295$, Extremely difficult. The night having become hazy, the stars are now remarkably steady. During the observations of position, the haze took off the flare of the large star, and left the small one sufficiently distinct under a good illumination; after however the position series was procured, a dense fog supervened, the small star became very indistinct, and shortly was invisible; on this account, no more measures of distance could be obtained, and those gotten are deserving of little confidence. Blackman-street; February 9, 1824; Five-feet Equatorial. 4th and 12th magnitudes. Distance = $11''.843$ | 6 Obs. | Diff. = $0''.727$. Passy; March 5, 1825; Seven-feet Equatorial. 4th and 12th magnitudes. Position = $50^\circ 49' sf$ | 5 Obs. | Diff. = $1^\circ 33'$ Very unsatisfactory. Distance = $12''.318$ | 5 Obs. | Diff. = $1''.058$ Stars excessively tremulous. Passy; March 19, 1825; Seven-feet Equatorial. 4th and 11th magnitudes. Position = $52^\circ 7' sf$ | 5 Obs. | Diff. = $2^\circ 15'$ By twilight. Distance = $11''.154$ | 5 Obs. | Diff. = $0''.625$ The sun in the horizon when these observations were commenced. The light blue colour of the small star is very distinct. No artificial illumination employed. Measures of A C. Blackman-street; February 1, 1824; Seven-feet Equatorial. 4th and 15th magnitudes. Position = $13^\circ 26' sf \pm$ | 5 Obs. | Diff. = $1^\circ 45'$ Excessively difficult. Distance = $49''.784 \pm$ | 5 Obs. | Diff. = $1''.443$ Measures, particularly of distance, liable to some inaccuracy. Mean Result. of A B. Position $51^\circ 58' sf$ (32 Obs.) ; Epoch 1824.82 ; Distance $12''.085$ (25 Obs) ; Epoch 1824.64. of A C. Position $13^\circ 26' sf \pm$ (5 Obs.) ; Distance $49''.784$ (5 Obs.) ; Epoch 1824.08. Mr. South's observations of the apparent distances No. CCCCXCII. continued. The positions of B and C respectively in 1781, were $43^\circ 51' sf$, and $11^\circ 19' sf$, the former indicating a change of $8^\circ 7'$, and the latter of only $2^\circ 7'$. The distances have undergone little change. Here the fixity of the more distant star may be regarded as affording presumptive evidence of a motion in the nearer one, and that to a considerable amount ($+0^\circ.202$ per annum, or direct.) This star therefore merits attention. (H.) No. CCCCXCII. R. A. $5^\text{h} 27^\text{m}$; Decl. $30^\circ 22' N.$ 26 Aurigae; Struve, 196; III. 64; Double; 6th and 10th magnitudes; small, blue. Passy; December 29, 1824: Seven-feet Equatorial. | Position = $1^\circ 45' sp$ | 6 Obs. | Diff. = $1^\circ 28'$ | | Distance = $12''.265$ | 5 Obs. | Diff. = $0''.456$ | Difficult. After these measures were secured, the position wire was purposely set to zero. The small star is decidedly above the wire, whilst the larger one remains bisected by it, during their progress across the field. Night very favourable; it freezes slightly. Passy; January 25, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. | Position = $1^\circ 32' sp$ | 6 Obs. | Diff. = $0^\circ 53'$ | | Distance = $12''.388$ | 5 Obs. | Diff. = $0''.913$ | Very difficult. Mean Result. Position $1^\circ 38' sp$ (12 Obs.); Distance $12''.327$ (10 Obs.); Epoch 1825.03. In 1783 the position is stated (MSS.) to have been $2^\circ 36' np$, and the distance $13''.41$. In 1802 the angle was measured at $3^\circ 56' np$, but (for reasons assigned), this was regarded at the time as a manifestly false measure, and the small star was judged to be exactly preceding. The total change of angle is $4^\circ 14'$, a considerable quantity for mere error of observation in a star of the 3d class, and which (when the observation of 1802 is considered), may lead to a suspicion of a very slow relative motion. (H.) and positions of 458 double and triple stars, &c. No. CCCCXCIII. R. A. $5^h\ 30^m$; Decl. $0^\circ\ 15'$ S. Nova; Two double stars in the field. The preceding is of the 6th class; the following of the 2nd or 3rd. The preceding. Passy; December 29, 1824; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $7^\circ\ 59'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 48'$ Distance = $2'\ 17''.982$ | 5 Obs. | Diff. = $0''.986$ Difficult. Passy; January 16, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $8^\circ\ 17'\ sp$ | 3 Obs. | Diff. = $0^\circ\ 40'$. Very difficult. Night is become cloudy. Passy; January 17, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $8^\circ\ 14'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 24'$ Distance = $2'\ 18''.653$ | 5 Obs. | Diff. = $1''.106$ Very difficult. The small star is very faint, and bears only the most feeble illumination. Mean Result. Position $8^\circ\ 9'\ sp$ (13 Obs.); Epoch 1825.03; Distance $2'\ 18''.317$; (10 Obs.); Epoch 1825.02. No. CCCCXCIV. R. A. $5^h\ 30^m$; Decl. $0^\circ\ 15'$ S. Nova; sequens No. 493; Double; 10 and $10\frac{1}{2}$ magnitudes; both pale blue, and bear scarcely any illumination. Passy; December 29, 1824; Seven-feet Equatorial. Position = $28^\circ\ 45'\ np$ | 5 Obs. | Diff. = $2^\circ\ 35'$ Extremely difficult. Distance = $11''.491$ | 5 Obs. | Diff. = $1''.731$ MDCCCXXVI. Mr. South's observations of the apparent distances No. CCCCXCIV. continued. Passy; January 25, 1825; Seven-feet Equatorial. 10th and 10½ magnitudes. Position = $26°\ 58' np$ | 5 Obs. | Diff. = $2°\ 27'$ } Extremely difficult. Distance = $11''.555$ | 5 Obs. | Diff. = $0''.986$ } Neither star bears a good illumination. Night fine. Mean Result. Position $27°\ 51' np$; Distance $11''.523$; Epoch 1825.03. No. CCCCXCV. R. A. $5^h\ 30^m$; Decl. $29°\ 23' N.$ Struve, 197; Hist. Cæl. 260; Double; 7 and 7½ magnitudes. Blackman-street; December 22, 1823; Five-feet Equatorial. Position = $77°\ 7' nf$ | 5 Obs. | Diff. = $1°\ 0'$ } Distance = $26''.270$ | 5 Obs. | Diff. = $0''.758$ } . . . . Passy; December 22, 1824; Seven-feet Equatorial. 7 and 7½ magnitudes. Position = $77°\ 17' nf$ | 5 Obs. | Diff. = $0°\ 53'$ } Distance = $26''.732$ | 5 Obs. | Diff. = $0''.168$ } . . . . Mean Result. Position $77°\ 12' nf$; Distance $26''.501$; Epoch 1824.48. No. CCCCXCVI. R. A. $5^h\ 30^m$; Decl. $15°\ 15' N.$ Struve, 199; Hist. Cæl. 262; Double; 8th and 10th magnitudes; small, blue, and bears a very tolerable illumination. Passy; December 10, 1824; Seven-feet Equatorial. Position = $4°\ 54' np$ | 5 Obs. | Diff. = $1°\ 45'$ } On the meridian. Distance = $9''.752$ | 5 Obs. | Diff. = $0''.408$ } and positions of 458 double and triple stars, &c. No. CCCCXCVI. continued. Passy; January 25, 1825; Seven-feet Equatorial. Position = $4^\circ 44' n p$ | 5 Obs. | Diff. = $1^\circ 18'$ } Distance = $9''.983$ | 5 Obs. | Diff. = $0''.553$ } Mean Result. Position $4^\circ 49' n p$; Distance $9''.867$; Epoch 1825.00. No. CCCCXCVII. R. A. $5^h 37^m$; Decl. $4^\circ 20' S.$ 187 (Bode) Orionis; Struve, 204; Double; 7th and 12th, or 15th magnitudes; the small star will not bear the least illumination. Passy; January 6, 1825; Seven-feet Equatorial. Position = $2^\circ 48' nf$ | 5 Obs. | Diff. = $3^\circ 23'$ } On the meridian. Distance = $8''.048$ | 5 Obs. | Diff. = $0''.529$ } The night is remarkably fine, and the stars are extremely steady; still the measures of this double star are so excessively difficult, that the observations of it, although made with every possible care, may be liable to error. To attempt to measure it, except under the most favourable circumstances, will always be useless. I had often looked attentively for this small star, both here and in England, fully persuaded from the authority of Mr. Struve* that it existed; but till this evening, it does not appear from my Observatory Journal, that I have even once suspected that I saw it. Passy; February 6, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $3^\circ 26' nf$ | 5 Obs. | Diff. = $0^\circ 34'$ } Excessively difficult. Distance = $7''.287$ | 5 Obs. | Diff. = $0''.625$ } Night very favourable for delicate observations; still the extreme faintness of the small star renders the measures open to suspicion. Mean Result. Position $3^\circ 7' nf$; Distance $7''.667$; Epoch 1825.06. * Mr. Struve's catalogue contains the places of several stars called double by Piazzi; in numerous instances however, I am satisfied that Piazzi's instrument has deceived him. Mr. South's observations of the apparent distances No. CCCCXCVIII. R. A. $5^h\ 37^m$; Decl. $22^\circ\ 31'$. S. γ Leporis; V. 50. Double; 5th and 8th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = $79^\circ\ 42'\ n\ p$ | 5 Obs. | Diff. = $0^\circ\ 41'$ Distance = $1'\ 33''.182$ | 6 Obs. | Diff. = $1''.154$ Passy; January 19, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $79^\circ\ 9'\ n\ p$ | 5 Obs. | Diff. = $0^\circ\ 24'$ Distance = $1'\ 34''.553$ | 5 Obs. | Diff. = $1''.370$ Passy; February 5, 1825; Seven-feet Equatorial. 5th and 8th magnitudes. Distance = $1'\ 33''.928$ | 5 Obs. | Diff. = $0''.745$ Mean Result. Position $79^\circ\ 25'\ n\ p$ (10 Obs.); Epoch 1825.03; Distance $1'\ 33''.844$ (16 Obs.); Epoch 1825.05. Sir W. Herschel has no measures of this star, and there is even a doubt of its identity with V. 50. (H.) No. CCCCXCIX. R. A. $5^h\ 38^m$; Decl. $6^\circ\ 23'$. N. 52 Orionis; STRUVE, 207; I. 20. Double; equal; each of the 8th magnitude. Blackman-street; March 6, 1824; Five-feet Equatorial. Position = $68^\circ\ 25'\ s\ p$ or $n\ f$ | 5 Obs. | Diff. = $2^\circ\ 49'$ Distance = $1''.651$ | 2 Obs. | Diff. = $0''.474$ Blackman-street; March 12, 1824; Five-feet Equatorial. Equal; each of the 8th magnitude. Position = $70^\circ\ 13'\ s\ p$ or $n\ f$ | 5 Obs. | Diff. = $3^\circ\ 6'$ Distance = $1''.655$ | 5 Obs. | Diff. = $0''.569$ Very unsteady. These stars are separated with 133, but are best observed with 303; the night is very clear. No. CCCCXCIX. continued. Mean Result. Position $69^\circ 19' sp$ or $nf$; Distance $1''.654$; Epoch $1824.18$. This star has not undergone the slightest change. In $1781$ its position was $69^\circ 41' sp$; in $1802$ it was $69^\circ 57' sp$; and its distance appears in like manner to remain perfectly unaltered. (H.) No. D. R.A. $5^h 38^m$; Decl. $32^\circ 56'$ N. Struve, 206; Hist. Cæl. 209; Double; 9th and 10th magnitudes. Passy; January 6, 1825; Seven-feet Equatorial. | Position = $1^\circ 19' nf$ | 5 Obs. | Diff. = $0^\circ 48'$ } Difficult. | Distance = $58''.738$ | 5 Obs. | Diff. = $0''.817$ } Difficult. Passy; January 28, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. | Position = $0^\circ 58' nf$ | 5 Obs. | Diff. = $0^\circ 39'$ } Difficult. | Distance = $59''.856$ | 5 Obs. | Diff. = $0''.529$ } Difficult. Passy; February 5, 1825; Seven-feet Equatorial. | Position = $1^\circ 1' nf$ | 5 Obs. | Diff. = $0^\circ 30'$ } Difficult. | Distance = $59''.786$ | 5 Obs. | Diff. = $0''.577$ } Difficult. Mean Result. Position $1^\circ 6' nf$ (15 Obs.) ; Distance $59''.460$; (15 Obs.); Epoch $1825.06$. Mr. South's observations of the apparent distances No. DI. R. A. $5^h 40'$; Decl. $8^\circ 28'$ S. Nova; Double; 7th and 11th magnitudes. Passy; March 8, 1825; Seven-feet Equatorial. Position $= 87^\circ 34' sp$ | 5 Obs. | Diff. = $1^\circ 47'$ | Extremely difficult. Distance $= 21''.387 \pm$ (single observation) The night is become very bad; no more measures can be gotten; and the accuracy of these perhaps may be called in question. Passy; March 10, 1825; Seven-feet Equatorial. 7th and 12th magnitudes. Position $= 88^\circ 13' sp$ | 5 Obs. | Diff. = $0^\circ 46'$ | Excessively difficult. Distance $= 21''.615 \pm$ | 3 Obs. | Diff. = $1''.202$ The small star will scarcely bear the slightest illumination. Mean Result. Position $87^\circ 54' sp$ (10 Obs.); Distance $21''.558 \pm$ (4 Obs.); Epoch 1825.18. No. DII. R. A. $5^h 45^m$; Decl. $13^\circ 50'$ N. Struve, 210; Hist. Cæl. 313. Double; 8th and 9th magnitudes. Passy; January 6, 1825; Seven-feet Equatorial. Position $= 39^\circ 14' sf$ | 5 Obs. | Diff. = $0^\circ 39'$ | Distance $= 45''.171$ | 5 Obs. | Diff. = $0''.577$ Passy; January 19, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position $= 39^\circ 7' sf$ | 5 Obs. | Diff. = $2^\circ 8'$ | Distance $= 45''.878$ | 5 Obs. | Diff. = $0''.865$ Mean Result. Position $39^\circ 10' sf$; Distance $45''.524$; Epoch 1825.03. and positions of 458 double and triple stars, &c. No. DIII. R.A. $5^h\ 46^m$; Decl. $13^o\ 55'N.$ Nova; Double; 7th and 9th magnitudes; a star C of the 8th magnitude precedes it to the north. Measures of A B. Passy; January 19, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $43^o\ 37'\ s.f.$ | $39''.680$ | | Obs. | Diff. | |------|-------| | 5 | $1^o\ 6'$ | | 5 | $2''.212$ | Passy; February 4, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. | Position | Distance | |----------|----------| | $44^o\ 42'\ s.f.$ | $40''.212$ | | Obs. | Diff. | |------|-------| | 5 | $1^o\ 13'$ | | 5 | $0''.962$ | The small star is certainly blue. Measures of A C. Passy; January 19, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. | Position | Distance | |----------|----------| | $67^o\ 13'\ n.p.$ | | | Obs. | Diff. | |------|-------| | 3 | $0^o\ 22'$ | Passy; February 4, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. | Position | Distance | |----------|----------| | $67^o\ 19'\ n.p.$ | $3'\ 21''.712$ | | Obs. | Diff. | |------|-------| | 5 | $0^o\ 43'$ | | 5 | $1''.130$ | Passy; March 26, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. | Distance | |----------| | $3'\ 21''.817$ | | Obs. | Diff. | |------|-------| | 5 | $1''.082$ | Mean Result. of A B. Position $44^o\ 9'\ s.f.$; Distance $39''.946$; Epoch 1825.07; of A C. Position $67^o\ 17'\ n.p.$ (8 Obs.): Epoch 1825.07; Distance $3'\ 21''.764$; Epoch 1825.16. Mr. South's observations of the apparent distances No. DIV. R. A. $5^h\ 51^m$; Decl. $20^\circ\ 10'$ S. STRUVE, 215; Hist. Cæl. 319. Double; equal; each of the 10th magnitude. Passy; January 6, 1825; Seven-feet Equatorial. Position = $12^\circ\ 22'\ sp$ or $nf$ | 5 Obs. | Diff. = $2^\circ\ 0'$ Distance = $5''.253$ | 5 Obs. | Diff. = $0''.962$ Excessively difficult. These are pale, ill defined stars, bearing neither illumination nor magnifying power: till now I have only seen it as a single star: finding the measures difficult with 179, I tried 105; but although the stars were then distinctly separated, the instant sufficient light was admitted to render the micrometer wires perceptible, both stars became invisible. The measures (perhaps little better than cautious estimations) were gotten with the ordinary power of 179. The night is particularly favourable. I have tried to re-measure this double star several times; but although the weather has occasionally been very fine, I have not succeeded in seeing it double. Passy; April 30, 1825. No. DV. R. A. $5^h\ 58^m$; Decl. $14^\circ\ 2'$ N. Nova; in the field with Nos. 506 and 507; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; January 28, 1825; Seven-feet Equatorial. Position = $85^\circ\ 19' nf$ | 5 Obs. | Diff. = $3^\circ\ 10'$ Distance = $24''.231$ | 5 Obs. | Diff. = $0''.889$ Very difficult. Passy; February 4, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $84^\circ\ 9' nf$ | 5 Obs. | Diff. = $1^\circ\ 5'$ Distance = $25''.092$ | 5 Obs. | Diff. = $0''.793$ Very difficult. Passy; March 29, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $82^\circ\ 58' nf$ | 5 Obs. | Diff. = $1^\circ\ 39'$ Distance = $24''.664$ | 5 Obs. | Diff. = $1''.803$ Very difficult. Observed when $2\frac{1}{2}$ hours west of the meridian. Mean Result. Position $84^\circ\ 9' nf$ (15 Obs.); Distance $24''.662$ (15 Obs.); Epoch 1825.13. and positions of 458 double and triple stars, &c. No. DVI. R. A. $5^h\ 59^m$; Decl. $14^\circ\ 0' N.$ Nova; Double; 8th and 10th magnitudes. Passy; January 28, 1825; Seven-feet Equatorial. | Position = $19^\circ\ 53'\ s.f$ | 5 Obs. | Diff. = $2^\circ\ 53'$ } Difficult. | Distance = $2''.769$ | 5 Obs. | Diff. = $0''.769$ } Night remarkably fine; but the moisture deposited on the object-glass is sadly troublesome: it is absolutely necessary to remove it every three or four minutes for the purpose of wiping it. Passy; February 11, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. | Position = $19^\circ\ 14'\ s.f$ | 5 Obs. | Diff. = $1^\circ\ 46'$ } Difficult. | Distance = $2''.928$ | 5 Obs. | Diff. = $0''.336$ } Passy; March 10, 1825; Portable Transit. Observed R. A. of the larger star = $5^h\ 58'\ 36''.86$. Passy; March 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Distance = $3''.120$ | 5 Obs. | Diff. = $0''.456$. Difficult. Observed when two hours west of the meridian. Mean Result. Position $19^\circ\ 33'\ s.f$ (10 Obs.); Epoch 1825.09; Distance $2''.750$ (15 Obs.); Epoch 1825.12. No. DVII. R. A. $5^h\ 59^m$; Decl. $14^\circ\ 0' N.$ Nova; Double; 9th and $9\frac{1}{4}$ magnitudes. The larger of these stars follows the double star, No. 506, two or three seconds of time, and is about 14 seconds to the south of it. Passy; January 28, 1825; Seven-feet Equatorial. | Position = $47^\circ\ 24'\ s.p$ | 5 Obs. | Diff. = $1^\circ\ 59'$ } | Distance = $39''.331$ | 5 Obs. | Diff. = $0''.913$ } MDCCCXXVI. Mr. South's observations of the apparent distances No. DVII. continued, Passy; February 4, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $47^\circ 43' sp$ | 5 Obs. | Diff. = $1^\circ 22'$ \\ Distance = $40''.062$ | 5 Obs. | Diff. = $1''.443$ \\ Mean Result. Position $47^\circ 33' sp$; Distance $39''.696$; Epoch 1825.08. No. DVIII. R. A. $6^h 0^m$; Decl. $2^\circ 32' N.$ Struve, 216; Double; 7th and 8th magnitudes. Passy; December 5, 1824; Seven-feet Equatorial. Position = $22^\circ 21' sf$ | 5 Obs. | Diff. = $0^\circ 40'$ \\ Distance = $28''.377$ | 5 Obs. | Diff. = $0''.913$ \\ Passy; December 10, 1824; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Position = $22^\circ 57' sf$ | 5 Obs. | Diff. = $0^\circ 53'$ \\ Distance = $29''.997$ | 5 Obs. | Diff. = $0''.721$ \\ Passy; February 5, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Distance = $29''.187$ | 5 Obs. | Diff. = $0''.577$. Measures of a distant star of the 12th magnitude. Passy; February 5, 1825; Seven-feet Equatorial. Position = $16^\circ 28' sf$ | Single observation \\ Distance = $2' 1''.060$ | Single observation \\ Mean Result. Position $22^\circ 39' sf$ (10 Obs.); Epoch 1824.94; Distance $29''.187$ (15 Obs.); Epoch 1824.99. and positions of 458 double and triple stars, &c. No. DIX. R. A. 6\textsuperscript{h} 4\textsuperscript{m}; Decl. 14\textsuperscript{o} 26' N. Nova; \(sp\) No. 510; Double; 7th and 7\(\frac{1}{2}\) magnitudes. Passy; January 17, 1825; Seven-feet Equatorial. \[ \begin{align*} \text{Position} &= 71\textsuperscript{o} 58'\ sp \\ \text{Distance} &= 2' 49''.146 \end{align*} \] \[ \begin{align*} \text{5 Obs.} & \quad \text{Diff.} = 0\textsuperscript{o} 37' \\ \text{5 Obs.} & \quad \text{Diff.} = 1''.106 \end{align*} \] Passy; February 2, 1825; Seven-feet Equatorial. 8th and 8\(\frac{1}{2}\) magnitudes. \[ \begin{align*} \text{Position} &= 71\textsuperscript{o} 57'\ sp \\ \text{Distance} &= 2' 48''.732 \end{align*} \] \[ \begin{align*} \text{5 Obs.} & \quad \text{Diff.} = 0\textsuperscript{o} 21' \\ \text{5 Obs.} & \quad \text{Diff.} = 1''.298 \end{align*} \] Mean Result. Position 71\textsuperscript{o} 57'\ sp; Distance 2' 48''.939; Epoch 1825.06. No. DX. R. A. 6\textsuperscript{h} 4\textsuperscript{m}; Decl. 14\textsuperscript{o} 32' N. Struve, 219; Hist. Cæl. 313. Triple; A of the 8\(\frac{1}{2}\), B 9th, and C of the 12th magnitudes. Measures of A B. Passy; December 29, 1824; Seven-feet Equatorial. \[ \begin{align*} \text{Position} &= 6\textsuperscript{o} 20'\ sp \\ \text{Distance} &= 5''.922 \end{align*} \] \[ \begin{align*} \text{5 Obs.} & \quad \text{Diff.} = 1\textsuperscript{o} 29' \\ \text{5 Obs.} & \quad \text{Diff.} = 0''.553 \end{align*} \] South preceding this star, in the field with it, is a double star of the 6th class; and north following also a triple star of the 5th and 6th classes: they may be measured when the weather is favourable. Passy; January 17, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. \[ \begin{align*} \text{Position} &= 7\textsuperscript{o} 6'\ sp \\ \text{Distance} &= 5''.939 \end{align*} \] \[ \begin{align*} \text{5 Obs.} & \quad \text{Diff.} = 1\textsuperscript{o} 36' \\ \text{5 Obs.} & \quad \text{Diff.} = 0''.456 \end{align*} \] Mr. South's observations of the apparent distances No. DX. continued. Measures of A C. Passy; December 29, 1824; Seven-feet Equatorial. 8½ and 12th magnitudes. Position = $64^\circ 44' nf$ | 5 Obs. | Diff. = $0^\circ 25'$ } Very difficult. Distance = $1' 47''.533$ | 5 Obs. | Diff. = $1''.611$ Passy; March 30, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $64^\circ 41' nf$ | 3 Obs. | Diff. = $0^\circ 31'$ } Extremely difficult. Distance = $1' 48''.457$ | 3 Obs. | Diff. = $0''.505$ Observed when $2\frac{1}{4}$ hours west of the meridian. Mean Result. of A B. Position $6^\circ 43' sp$; Distance $5''.930$; Epoch 1825.02; of A C. Position $64^\circ 43' nf$ (8 Obs.); Distance $1' 47''.879$ (8 Obs.); Epoch 1825.12. No. DXI. R.A. $6^h 4^m$; Decl. $36^\circ 12' N.$ Struve, 218; Hist. Cael. 315. Double; 7½ and 8th magnitudes. Passy; December 29, 1824; Seven-feet Equatorial. Position = $54^\circ 55' sp$ | 5 Obs. | Diff. = $1^\circ 31'$ } Distance = $11''.991$ | 5 Obs. | Diff. = $0''.625$ Passy; December 31, 1824; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = $53^\circ 31' sp$ | 5 Obs. | Diff. = $1^\circ 15'$ } Very tremulous. Distance = $11''.318$ | 5 Obs. | Diff. = $0''.336$ Stars only visible by glimpses. Cloudy. Mean Result. Position $54^\circ 13' sp$; Distance $11''.654$; Epoch 1825.00. and positions of 458 double and triple stars, &c. No. DXII. R.A. 6h 7m; Decl. 47° 11' N. Struve, 220; Hist. Cæl. 383. Double; 9½ and 10th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = 0° 39' sp | 5 Obs. | Diff. = 1° 10' } Difficult. Distance = 8''.374 | 5 Obs. | Diff. = 1''.370 Passy; January 25, 1825; Seven-feet Equatorial. 10th and 10½ magnitudes. Position = 0° 25' sp | 5 Obs. | Diff. = 0° 40' } Very difficult. Distance = 8''.103 | 5 Obs. | Diff. = 0''.962 These stars are so extremely obscure, that the observations of distance may be liable to some error. Mean Result. Position 0° 32' sp; Distance 8''.238; Epoch 1825.03. No. DXIII. R.A. 6h 11m; Decl. 21° 14' N. Nova; Double; 8th and 9½ magnitudes; small, blue. Passy; February 12, 1825; Seven-feet Equatorial. Position = 12° 47' sp | 5 Obs. | Diff. = 0° 56' } Difficult. Distance = 59''.322 | 5 Obs. | Diff. = 0''.937 The small star does not bear a good illumination. Passy; February 17, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 12° 53' sp | 5 Obs. | Diff. = 1° 37' } Difficult. Distance = 58''.505 | 5 Obs. | Diff. = 0''.481 Small star very faint. Mean Result. Position 12° 50' sp; Distance 58''.913; Epoch 1825.11. Mr. South's observations of the apparent distances No. DXIV. R. A. 6\textsuperscript{h} 11\textsuperscript{m}; Decl. 58° 30' N. 5 Lyncis; Struve, 221; VI. 102. Double; 6th and 9th magnitudes; small, blue. Passy; January 5, 1825; Seven-feet Equatorial. Position = 2° 5' np | 5 Obs. | Diff. = 0° 51' } Distance = 1' 36''.640 | 5 Obs. | Diff. = 0''.745 } Passy; February 4, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = 2° 9' np | 5 Obs. | Diff. = 0° 27' } Distance = 1' 34''.383 | 5 Obs. | Diff. = 1''.370 } Passy; February 6, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Distance = 1' 35''.312 | 5 Obs. | Diff. = 0''.793. Mean Result. Position 2° 7' np (10 Obs.); Epoch 1825.05; Distance 1' 35''.445 (15 Obs.); Epoch 1825.06. The position of 1783 was 2° 0' np, so that this star appears perfectly unchanged in this respect. As for the distance, nothing can be concluded for reasons already stated. (H.) No. DXV. R. A. 6\textsuperscript{h} 12\textsuperscript{m}; Decl. 26° 47' N. Nova; Double; 9th and 9\(\frac{1}{2}\) magnitudes; bear but a feeble illumination. Passy; February 12, 1825; Seven-feet Equatorial. Position = 78° 36' np | 5 Obs. | Diff. = 0° 19' } Difficult. Distance = 18''.860 | 5 Obs. | Diff. = 0''.793 } Passy; February 19, 1825; Seven-feet Equatorial. 9th and 9\(\frac{1}{2}\) magnitudes. Position = 78° 45' np | 5 Obs. | Diff. = 1° 45' } Very difficult. Distance = 19''.139 | 5 Obs. | Diff. = 0''.721 } Mean Result. Position 78° 40' np; Distance 18''.999; Epoch 1825.12. and positions of 458 double and triple stars, &c. No. DXVI. R. A. $6^\text{h} 12^\text{m}$; Decl. $24^\circ 53'$ S. Nova; Double; $8\frac{1}{2}$ and $9\frac{1}{2}$ magnitudes; a star C of the 6th magnitude precedes A to the south. Measures of A B. Passy; March 5, 1825; Seven-feet Equatorial. | Position = $87^\circ 2' \text{ nf}$ | 5 Obs. | Diff. = $0^\circ 57'$ | Difficult. | Distance = $1' 6''.404$ | 5 Obs. | Diff. = $1''.082$ Passy; March 10, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. | Position = $87^\circ 9' \text{ nf}$ | 5 Obs. | Diff. = $0^\circ 53'$ | Extremely difficult. | Distance = $1' 6''.139$ | 5 Obs. | Diff. = $0''.721$ The small star bears but the most feeble illumination. Measures of A C. 8\(\frac{1}{2}\) and 6th magnitudes. Passy; March 5, 1825; Seven-feet Equatorial. Distance = $27^\circ 57' \text{ sp}$. Single Observation. Passy; March 10, 1825; Seven-feet Equatorial. | Position = $27^\circ 39' \text{ sp}$ | 3 Obs. | Diff. = $0^\circ 14'$ | | Distance = $5' 0''.048$ | 3 Obs. | Diff. = $1''.659$ Passy; March 28, 1825; Seven-feet Equatorial. Distance = $4' 59''.902$ | 3 Obs. | Diff. = $1''.178$. By twilight. Observed without artificial illumination. Mean Result. Of A B. Position $87^\circ 5' \text{ nf}$; Distance $1' 6''.271$; Epoch 1825.18. Of A C. Position $27^\circ 43' \text{ sp}$ (4 Obs.); Epoch 1825.18; Distance $4' 59''.975$ (6 Obs.); Epoch 1825.21. Mr. South's observations of the apparent distances No. DXVII. R. A. $6^h\ 14^m$; Decl. $16^\circ\ 32'$ S. Nova; Double; 10 and $10\frac{1}{2}$ magnitudes. Passy; February 23, 1825; Seven-feet Equatorial. Position $=77^\circ\ 17'\ sp$ | 5 Obs. | Diff. $=2^\circ\ 24'$ } Very difficult. Distance $=23''.748$ | 5 Obs. | Diff. $=1''.707$ Neither star bears sufficient illumination; I rather suspect the accuracy of the distance. Passy; March 10, 1825; Seven-feet Equatorial. Equal; each of the 11th magnitude. Position $=78^\circ\ 8'\ sp$ or $nf$ | 5 Obs. | Diff. $=1^\circ\ 40'$ } Extremely difficult. Distance $=23''.912$ | 5 Obs. | Diff. $=0''.962$ Mean Result. Position $77^\circ\ 42'\ sp$ or $nf$; Distance $23''.830$; Epoch $1825.16$. No. DXVIII. R. A. $6^h\ 16^m$; Decl. $16^\circ\ 8'$ S. Struve, 223; Hist. Cæl. 323; Double; 8th and 10th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position $=0^\circ\ 40'\ nf$ | 5 Obs. | Diff. $=1^\circ\ 47'$ } Very difficult. Distance $=15''.462$ | 5 Obs. | Diff. $=1''.082$ The small star bears only a very feeble illumination. Passy; January 25, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $=0^\circ\ 16'\ nf$ | 5 Obs. | Diff. $=0^\circ\ 39'$ } Very difficult. Distance $=15''.739$ | 5 Obs. | Diff. $=0''.769$ A double star of the 5th class is also in the field $sp$, but it is unmeasurable with this instrument. Night fine. Mean Result. Position $0^\circ\ 28'\ nf$; Distance $15''.600$; Epoch $1825.03$. and positions of 458 double and triple stars, &c. No. DXIX. R. A. $6^h\ 19^m$; Decl. $52^\circ\ 35'$ N. 229 (BODE) Aurigae; Hist. Cael. 375; STRUVE, 226. Double; 8th and 10th magnitudes. The small star bears a very good illumination. Passy; February 8, 1825; Seven-feet Equatorial. Distance = $5''.150$ | 5 Obs. | Diff. = $0''.216$. Passy; March 19, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $48^\circ\ 54' \ n p$ | 5 Obs. | Diff. = $5^\circ\ 54'$ } Very difficult. Distance = $5''.162$ | 5 Obs. | Diff. = $0''.360$ } Very difficult. One third, perhaps one half, of the object-glass is not in use, through the interference of the timbers of the Observatory. Passy; March 21, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $49^\circ\ 58' \ n p$ | 5 Obs. | Diff. = $3^\circ\ 15'$ } Difficult. Distance = $5''.357$ | 5 Obs. | Diff. = $0''.264$ } Difficult. Mean Result. Position $49^\circ\ 26' \ n p$; Epoch 1825.16; Distance $5''.223$ (15 Obs.); Epoch 1825.17. No. DXX. R. A. $6^h\ 19^m$; Decl. $5^\circ\ 24'$ N. STRUVE, 225; II. 89. Double; 8th and 10th magnitudes; small, blue; and bears but the slightest illumination. Passy; January 2, 1825; Seven-feet Equatorial. Position = $50^\circ\ 8' \ n f$ | 7 Obs. | Diff. = $4^\circ\ 48'$ } Very difficult. Distance = $6''.811$ | 5 Obs. | Diff. = $0''.456$ } Very difficult. Passy; January 28, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $50^\circ\ 47' \ n f$ | 7 Obs. | Diff. = $4^\circ\ 45'$ } Extremely difficult. Distance = $7''.117$ | 5 Obs. | Diff. = $0''.312$ } Extremely difficult. The dew deposited on the object-glass is excessively troublesome. MDCCCXXVI. Mr. South's observations of the apparent distances No. DXX. continued. Mean Result. Position $50^\circ 27' nf$ (14 Obs.); Distance $6''.964$ (10 Obs.); Epoch 1825.04. This star offers not the slightest ground for presumption of a change, the position in 1784 having been $50^\circ 51' nf$, and the distance (from the estimation in diameters) about $7''$. (H.) No. DXXI. R. A. $6^h 22^m$; Decl. $38^\circ 46' N$. Struve, 232; Hist. Cæl. 208. Double; 9th and 11th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = $42^\circ 8' sf$ | 8 Obs. | Diff. = $3^\circ 48'$ } Extremely difficult. Distance = $3''.200$ | 5 Obs. | Diff. = $0''.697$ } Passy; February 9, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $43^\circ 44' sf$ | 8 Obs. | Diff. = $2^\circ 30'$ } Very difficult. Distance = $4''.027$ | 5 Obs. | Diff. = $0''.529$ } Stars admirably defined, and are as steady as possible. Mean Result. Position $42^\circ 56' sf$ (16 Obs.); Distance $3''.613$; Epoch 1825.05. No. DXXII. R. A. $6^h 22^m$; Decl. $5^\circ 53' N$. Struve, 231; III. 75. Double; 8th and 12th magnitudes; small, blue, and scarcely bears the least illumination. Passy; January 2, 1825; Seven-feet Equatorial. Position = $14^\circ 24' np$ | 5 Obs. | Diff. = $3^\circ 45'$ } Extremely difficult. Distance = $10''.586$ | 5 Obs. | Diff. = $0''.601$ } No. DXXII. continued. Passy; February 5, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $16^\circ 27' np$ | 5 Obs. | Diff. = $1^\circ 26'$ } Very difficult. Distance = $10''.962$ | 5 Obs. | Diff. = $0''.312$ The small star is decidedly blue, and bears only a very feeble illumination. Mean Result. Position $15^\circ 25' np$; Distance $10''.774$; Epoch $1825.04$. Sir W. Herschel has no measures of this star. (H.) No. DXXIII. R. A. $6^h 22^m$; Decl. $11^\circ 22' N.$ 145, 2; or Nova? Double; 7th and 12th magnitudes; small, blue. Passy; February 5, 1825; Seven-feet Equatorial. Position = $85^\circ 24' nf$ | 5 Obs. | Diff. = $1^\circ 16'$ } Excessively difficult. Distance = $16''.668$ | 5 Obs. | Diff. = $1''.106$ Passy; February 9, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $85^\circ 2' nf$ | 5 Obs. | Diff. = $1^\circ 45'$ } Extremely difficult. Distance = $17''.097$ | 5 Obs. | Diff. = $0''.769$ Mean Result. Position $85^\circ 13' nf$; Distance $16''.882$; Epoch $1825.09$. No. DXXIV. R. A. $6^h 23^m$; Decl. $22^\circ 15' N.$ Struve, 233; Mayer; Triple; A 7th, B $7\frac{1}{2}$, and C of the 12th or 15th magnitudes. Measures of A.B. Passy; December 5, 1824; Seven-feet Equatorial. Position = $27^\circ 14' sp$ | 5 Obs. | Diff. = $0^\circ 40'$ } Distance = $53''.292$ | 5 Obs. | Diff. = $0''.793$ Mr. South's observations of the apparent distances No. D XXIV. continued. Passy; December 31, 1824; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $27^\circ 10' sp$ | 5 Obs. | Diff. = $0^\circ 56'$ } Ill defined, and unsteady. Distance = $52''.784$ | 5 Obs. | Diff. = $1''.539$ Passy; January 8, 1825; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Distance = $53''.008$ | 5 Obs. | Diff. = $0''.793$. . . . Passy; January 17, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $27^\circ 8' sp$ | 5 Obs. | Diff. = $1^\circ 36'$ } Very hazy. Distance = $54''.038$ | 5 Obs. | Diff. = $0''.432$ Night very unfavourable; of A C no measures can be procured. Measures of A C. Passy; December 5, 1824; Seven-feet Equatorial. 7th and 12th, or 15th magnitudes. Position = $59^\circ 39' sf$ | 2 Obs | Diff. = $0^\circ 18'$ } Excessively difficult. Distance = $1' 46''.511 \pm$ single observation The star C bears no illumination: the distance is little better than conjecture. Mean Result. of A B. Position $27^\circ 11' sp$ (15 Obs.) ; Epoch 1824.99 ; Distance $53''.280$ (20 Obs.) ; Epoch 1825.00. of A C. Position $59^\circ 39' sf$; Distance $1' 46''.511$; Epoch 1824.93. and positions of 458 double and triple stars, &c. No. DXXV. R. A. 6h 24m; Decl. 41° 15' N. 145, 60; or Nova? Double; 10th and 11th magnitudes. Passy; February 5, 1825; Seven-feet Equatorial. Position = 16° 29' nf | 5 Obs. | Diff. = 1° 40' } Extremely difficult. Distance = 24".787 | 5 Obs. | Diff. = 0".745 Passy; February 11, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 15° 36' nf | 5 Obs. | Diff. = 0° 46' } Extremely difficult. Distance = 26".106 | 5 Obs. | Diff. = 0".456 Passy; March 26, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 16° 26' nf | 5 Obs. | Diff. = 1° 18' } Extremely difficult. Distance = 25".861 | 5 Obs. | Diff. = 0".793 Mean Result. Position 16° 10' nf (15 Obs.); Distance 25".585 (15 Obs.); Epoch 1825.14. The measures of distance do not accord so well as might be wished; still the observations are so very difficult, that I scarcely dare to reject those of February 5. No. DXXVI. R. A. 6h 26m; Decl. 41° 43' N. Struve, 234; I. 84. A very close double star; 9th and 10th magnitudes. A power of 303 with the Five-feet Equatorial distinctly separates the two stars, and 133 shows it double: it is excessively difficult to measure; bears magnifying but badly; and although the night is tolerably fine, is unmeasurable with the Five-feet. Blackman-street; January 31, 1824; Seven-feet Equatorial. Position = 3° 50' nf | 5 Obs. | Diff. = 1° 30' } Excessively difficult. Distance = 1".820 | 3 Obs. | Diff. = 0".481 Mr. South's observations of the apparent distances No. DXXVI. continued. Passy; February 6, 1825; Seven-feet Equatorial. | Position = 5° 26' nf | 5 Obs. | Diff. = 4° 42' | With power 273 | |----------------------|-------|---------------|----------------| | Position = 5° 41' nf | 5 Obs. | Diff. = 7° 15' | | | Distance = 1°.570 | 5 Obs. | Diff. = 0°.408 | | These stars are of a light blue colour; they are very close, bear but very little illumination, and are not well defined under sufficient magnifying power, to separate their discs completely from each other. The first set of angles taken this evening were gotten with 273, but the attempt to observe the distances with that power, was altogether ineffectual. The night is very favourable. Mean Result. Position 4° 59' nf (15 Obs.) ; Distance 1°.664 (8 Obs); Epoch 1824.58. At the Epoch 1783.25 the position of this star was found 14° 0' nf. The change in 41.23 years amounts to 9° 1', being at the rate of + 0°.219 direct, or in the direction nf sp. This change is too great to arise from mere error of observation; so that there is considerable probability of this turning out a binary star, and it ought therefore to be kept in view. (H.) No. DXXVII. R. A. 6h 27m; Decl. 23° 19' N. Nova; Double; 9½ and 10th magnitudes, and bear but a very feeble illumination. Passy; February 12, 1825; Seven-feet Equatorial. | Position = 68° 2' sf | 5 Obs. | Diff. = 2° 52' | Very difficult. | |----------------------|-------|---------------|----------------| | Distance = 15°.951 | 5 Obs. | Diff. = 0°.769 | | Passy; February 19, 1825; Seven-feet Equatorial. 10th and 10½ magnitudes. | Position = 67° 34' sf | 5 Obs. | Diff. = 1° 50' | Extremely difficult. | |----------------------|-------|---------------|---------------------| | Distance = 15°.859 | 5 Obs. | Diff. = 0°.769 | | Night hazy. Mean Result. Position 67° 48'' sf; Distance 15°.905; Epoch 1825.12. and positions of 458 double and triple stars, &c. No. DXXVIII. R. A. 6h 28m; Decl. 31° 44' N. Nova; Double; 8th and 11th magnitudes. Passy; February 12, 1825; Seven-feet Equatorial. Position = 63° 40' nf | 5 Obs. | Diff. = 1° 52' } Excessively difficult, Distance = 1° 21''.648 | 5 Obs. | Diff. = 0''.649 } The accuracy of the observations is somewhat questionable. Passy; March 29, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. Position = 64° 29' nf | 5 Obs. | Diff. = 0° 52' } Excessively difficult, Distance = 1° 19''.735 ± single observation } The small star is so extremely obscure, that the distance here given may be liable to an error of five, or even six seconds. Mean Result. Position 64° 4' nf; Distance 1° 20''.691 ±; Epoch 1825.17. No. DXXIX. R. A. 6h 28m; Decl. 12° 23' N. Nova; Triple; A of the 7th, B of the 9th, and C of the 8th magnitudes. Measures of A B. Passy; February 12, 1825; Seven-feet Equatorial. Position = 72° 48' sf | 5 Obs. | Diff. = 0° 57' } Distance = 1° 32''.329 | 5 Obs. | Diff. = 1°.515 } Passy; February 17, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 73° 5' sf | 5 Obs. | Diff. = 0° 53' } Distance = 1° 31''.661 | 5 Obs. | Diff. = 1''.250 } Measures of A C. Passy; February 12, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = 80° 36' sf | 5 Obs. | Diff. = 0° 51' } Distance = 3° 8''.079 | 5 Obs. | Diff. = 1''.346 } Mr. South's observations of the apparent distances No. D XXIX. continued. Passy; February 17, 1825; Seven-feet Equatorial. Sth and $8\frac{1}{2}$ magnitudes. Position = $80^\circ 55' sf$ | 5 Obs. | Diff. = $0^\circ 51'$ | Distance = $3' 7''.747$ | 5 Obs. | Diff. = $1''.058$ | Mean Result. of A B. Position $72^\circ 56' sf$; Distance $1' 31''.995$; of A C. Position $80^\circ 45' sf$; Distance $3' 7''.913$; Epoch 1825.12. No. D XXX. R. A. $6^\text{h} 29^\text{m}$; Decl. $59^\circ 37'$ N. Struve, 238; Double; 9th and 12th magnitudes. Passy; January 5, 1825; Seven-feet Equatorial. Position = $47^\circ 6' sf$ | 6 Obs. | Diff. = $3^\circ 49'$ | Extremely difficult. Distance = $3''.436$ | 5 Obs. | Diff. = $0''.529$ Passy; February 4, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $46^\circ 29' sf$ | 6 Obs. | Diff. = $4^\circ 26'$ | Excessively difficult. Distance = $4''.630$ | 5 Obs. | Diff. = $0''.360$ The small star is blue, and will scarcely admit of the least illumination. Passy; February 9, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $46^\circ 51' sf$ | 5 Obs. | Diff. = $1^\circ 38'$ | Very difficult. Distance = $4''.123$ | 5 Obs. | Diff. = $0''.336$ Stars extremely well defined, and are unusually steady. Mean Result. Position $46^\circ 48' sf$ (17 Obs.); Distance $4''.063$ (15 Obs.); Epoch 1825.07. and positions of 458 double and triple stars, &c. No. D XXXI. R. A. 6h 33m; Decl. 55° 54' N. Struve, 243; II. 72; Double; 8th and 8½ magnitudes. Blackman-street; February 2, 1824; Five-feet Equatorial. Position = 10° 15' nf | 5 Obs. | Diff. = 1° 59' } Satisfactory. Distance = 4".832 | 5 Obs. | Diff. = 1".105 } Stars admirably defined, and as steady as possible. Night still very hazy. Passy; January 20, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 12° 13' nf | 5 Obs. | Diff. = 1° 25' } Night unfavourable. Distance = 4".178 | 5 Obs. | Diff. = 0".456 } Passy; February 6, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 10° 23' nf | 5 Obs. | Diff. = 2° 17' } Distance = 4".546 | 5 Obs. | Diff. = 0".384 } Mean Result. Position 10° 57' nf (15 Obs.); Distance 4".519 (15 Obs.); Epoch 1824.74. There is no change in this star in position, as a measure taken in 1782 makes it 11° 0' sp or nf. The distance is only estimated in diameters. (H.) No. D XXXII. R. A. 6h 33m; Decl. 7° 49' S. Struve, 241; Hist. Cæl. 267. Double; 10th and 11th magnitudes; pale; ill defined stars, scarcely bearing the least illumination. Passy; December 29, 1824; Seven-feet Equatorial. Position = 79° 49' sp | 6 Obs. | Diff. = 3° 58' } Excessively difficult. Distance = 12".731 | 5 Obs. | Diff. = 0".913 } Great confidence must not be placed in the accuracy of these observations: the morning however is extremely favourable. MDCCCXXVI. Mr. South's observations of the apparent distances No. D XXXII. continued. Passy; January 25, 1825: Seven-feet Equatorial. 10th and 10½ magnitudes. Position = $79° 48' sp$ | 6 Obs. | Diff. = $2° 48'$ } Extremely difficult. Distance = $12'' .484$ | 5 Obs. | Diff. = $0° .505$ Night remarkably fine. Mean Result. Position $79° 49' sp$ (12 obs.) ; Distance $12'' .607$ (10 obs.); Epoch 1825.03. No. D XXXIII. R. A. $6^h 33^m$ ; Decl. $25° 18' N.$ ε Geminorum; STRUVE, 242; VI. 73. Double; 4th and 10th magnitudes; small, blue; and does not bear a good illumination. Passy; December 29, 1824; Seven-feet Equatorial. Position = $3° 51' sf$ | 5 Obs. | Diff. = $0° 40'$ } Very difficult. Distance = $1' 51'' .788$ | 5 Obs. | Diff. = $1'' .923$ Passy; February 6, 1825; Five-feet Equatorial. 4th and 11th magnitudes. Position = $3° 33' sf$ | 5 Obs. | Diff. = $0° 19'$ } Very difficult. Distance = $1' 51'' .366$ | 5 Obs. | Diff. = $0'' .841$ Mean Result. Position $3° 42' sf$; Distance $1' 51'' .577$; Epoch 1825.04. Sir W. Herschel has given no measures of position for this star. The distance appears to have undergone no change. (H.) No. D XXXIV. R. A. $6^h 36^m$ ; Decl. $22° 15' S.$ Nova; Double; 8th and 11th magnitudes. Passy; February 17, 1825; Seven-feet Equatorial. Position = $55° 46' sf$ | 5 Obs. | Diff. = $2° 16'$ } Excessively difficult. Distance = $18'' .404$ | 5 Obs. | Diff. = $1'' .154$ Night hazy, and stars very unsteady. and positions of 458 double and triple stars, &c. No. DXXXIV. continued. Passy; March 28, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $= 52^\circ 58' sf$ | 5 Obs. | Diff. = $4^\circ 47'$ } Excessively difficult. Distance $= 18''.100$ | 5 Obs. | Diff. = $0''.721$ } Observed when 1½ hour west of the meridian. Passy; March 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $= 53^\circ 30' sf$ | 5 Obs. | Diff. = $2^\circ 20'$ } Extremely difficult. Position $= 53^\circ 10' sf$ | 5 Obs. | Diff. = $2''.36$ } The first set was observed by twilight, without artificial illumination; the stars being 40 minutes west of the meridian; the last by the aid of the lamp, when 70 minutes west of it. Mean Result. (The angles taken on February 17 being rejected) Position $53^\circ 13' sf$; (15 Obs.); Epoch 1825.23; Distance $18''.252$; Epoch 1825.17. No. DXXXV. R. A. 6h 40m; Decl. 75° 30' N. Struve, 247; Hist. Cæl. 365; Double; 8th and 10th magnitudes. Passy; January 5, 1825; Seven-feet Equatorial. Position $= 66^\circ 14' nf$ | 5 Obs. | Diff. = $1^\circ 13'$ } Very difficult. Distance $= 12''.635$ | 5 Obs. | Diff. = $0''.481$ } Passy; February 4, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $= 65^\circ 21' nf$ | 5 Obs. | Diff. = $1^\circ 23'$ } Difficult. Distance $= 12''.441$ | 5 Obs. | Diff. = $0''.697$ } Mean Result. Position $65^\circ 47' nf$; Distance $12''.538$; Epoch 1825.05. Mr. South's observations of the apparent distances No. DXXXVI. R. A. 6ʰ 41ᵐ; Decl. 39° 5′ N. 59 Aurigae; Struve, 248; IV. 102. Double; 6th and 15th magnitudes. Passy; January 8, 1825; Seven-feet Equatorial. Position = 48° 19′ s p | 5 Obs. | Diff. = 1° 30′ } Excessively difficult. Distance = 21″.601 | 5 Obs. | Diff. = 1″.082 } The small star is a mere point, and will not bear any illumination; the night is now tolerably good. In 1783, the measures were 50° 3′ n p, and 23″.50; so that this star has undergone no material change. (H.) No. DXXXVII. R. A. 6ʰ 42ᵐ; Decl. 23° 55′ S. Nova; Double; 7th and 11th magnitudes; small, blue. Passy; February 23, 1825; Seven-feet Equatorial. Position = 11° 54′ n p | 5 Obs. | Diff. = 1° 7′ } Very difficult. Distance = 30″.908 | 5 Obs. | Diff. = 1″.058 } Passy; March 2, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = 11° 49′ n p | 5 Obs. | Diff. = 1° 15′ } Extremely difficult. Distance = 29″.873 | 5 Obs. | Diff. = 0″.865 } Passy; March 18, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Distance = 30″.134 | 5 Obs. | Diff. = 1″.370. Excessively difficult. The small star becomes invisible under the slightest illumination. Mean Result. Position 11° 51′ n p (10 Obs.); Epoch 1825.15; Distance 30″.305 (15 Obs.); Epoch 1825.17. and positions of 458 double and triple stars, &c. No. DXXXVIII. R. A. 6\textsuperscript{h} 42\textsuperscript{m}; Decl. 23\textsuperscript{o} 55\textsuperscript{'} S. Nova; Double; 8th and 9th magnitudes; small, blue. Passy; February 18, 1825; Seven-feet Equatorial. Position = 86\textsuperscript{o} 50\textsuperscript{'} nf | 5 Obs. | Diff. = 0\textsuperscript{o} 43\textsuperscript{'} Difficult. The night is become cloudy; observations of distance are impracticable. Passy; February 23, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 86\textsuperscript{o} 38\textsuperscript{'} nf | 5 Obs. | Diff. = 1\textsuperscript{o} 11\textsuperscript{'} } Very difficult. Distance = 27\textsuperscript{''}.879 | 5 Obs. | Diff. = 1\textsuperscript{''}.178 Passy; March 2, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Distance = 27\textsuperscript{''}.733 | 5 Obs. | Diff. = 0\textsuperscript{''}.841. Very difficult. Mean Result. Position 86\textsuperscript{o} 44\textsuperscript{'} nf; Epoch 1825.13; Distance 27\textsuperscript{''}.806; Epoch 1825.15. No. DXXXIX. R. A. 6\textsuperscript{h} 43\textsuperscript{m}; Decl. 46\textsuperscript{o} 47\textsuperscript{'} N. Struve, 250; Double; 9th and 12th magnitudes. Passy; January 8, 1825; Seven-feet Equatorial. Position = 60\textsuperscript{o} 53\textsuperscript{'} sp | 5 Obs. | Diff. = 1\textsuperscript{o} 34\textsuperscript{'} } Extremely difficult. Distance = 8\textsuperscript{''}.329 | 5 Obs. | Diff. = 0\textsuperscript{''}.817 The small star is very faint, and bears but the most feeble illumination. Passy; February 5, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = 60\textsuperscript{o} 19\textsuperscript{'} s p | 5 Obs. | Diff. = 2\textsuperscript{o} 15\textsuperscript{'} } Extremely difficult. Distance = 8\textsuperscript{''}.129 | 5 Obs. | Diff. = 0\textsuperscript{''}.697 Mean Result. Position 60\textsuperscript{o} 36\textsuperscript{'} s p; Distance 8\textsuperscript{''}.229; Epoch 1825.08. Mr. South's observations of the apparent distances No. DXL. R. A. 6h 47m; Decl. 20° 11' S. π² Canis Major; Struve, 252; V. 65. Quadruple; A of the 6th, B of the 10th, C of the 12th, and D of the 15th magnitudes. Measures of A B. Passy; January 8, 1825; Seven-feet Equatorial. Position = 58° 11' sf | 5 Obs. | Diff. = 1° 35' } Excessively difficult. Distance = 45''.876 ± | 1 Obs. | Diff. = o''.913 } Extremely difficult. The night is become so unfavourable, that no more observations can be gotten. Passy; January 17, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 57° 43' sf | 5 Obs. | Diff. = 1° 1' } Extremely difficult. Distance = 44''.775 | 5 Obs. | Diff. = o''.913 } Extremely difficult. Passy; February 9, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Distance = 45''.123 | 5 Obs. | Diff. = 2''.019. Extremely difficult. Measures of A C. Passy; January 17, 1825; Seven-feet Equatorial. 6th and 12th magnitudes. Position = 86° 19' sp | 5 Obs. | Diff. = 3° 28' } Excessively difficult. Distance = 52''.188 | 2 Obs. | Diff. = o''.360 } Excessively difficult. The observations of distance very precarious, and of the pair A D no measures can be obtained. Night remarkably fine; but the dew on the object-glass is excessively troublesome. Passy; February 9, 1825; Seven-feet Equatorial. 6th and 12th magnitudes. Position = 85° 5' sp | 5 Obs. | Diff. = 1° 23' } Excessively difficult. Distance = 53''.265 | 5 Obs. | Diff. = 1''.226 } Excessively difficult. Measures of A D. Passy; February 9, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = 84° 44' sp | 2 Obs. | Diff. = o° 13' } Excessively difficult. Distance = 2° 8''.360 ± | 2 Obs. | Diff. = 1''.443 } Excessively difficult. Observations probably a little inaccurate; the small star can only be seen by glimpses. No. DXL. continued. Mean Result. of A B. Position $57^\circ 57' sf$ (10 Obs.); Epoch 1825.03; Distance $45''.033$ (11 Obs.); Epoch 1825.05. of A C. Position $85^\circ 42' sp$ (10 Obs.); Distance $52''.957$ (7 Obs.); Epoch 1825.07. of A D. Position $84^\circ 44' sp$ (2 Obs.); Distance $2' 8''.360 \pm$ (2 Obs.); Epoch 1825.10. A considerable change seems to have taken place in the position of these stars since 1783, in which year the measures were: Position $64^\circ 12' sf$; Distance $44''.93$. The difference, $6^\circ 15'$, is much more than could be fairly attributable to error of observation in a star of the 5th class, except under very difficult circumstances. (H.) No. DXLI. R. A. $6^h 50^m$; Decl. $22^\circ 24' S.$ Nova; Triple; A of the 8th, B of the 9th, and C of the 10th magnitudes. Measures of A B. Passy; February 21, 1825; Seven-feet Equatorial. Position = $46^\circ 6' nf$ | 5 Obs. | Diff. = $1^\circ 40'$ } Difficult. Distance = $23''.917$ | 5 Obs. | Diff. = $1''.154$ } Passy; March 17, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $47^\circ 39' nf$ | 5 Obs. | Diff. = $2^\circ 52'$ } Extremely difficult. Distance = $24''.277$ | 5 Obs. | Diff. = $1''.322$ } The small star bears scarcely any illumination. Mr. South's observations of the apparent distances No. DXLI. continued. Passy; Measure of A C. February 21, 1825. Position = $32^\circ 10' \pm sf$; single observation. Night so unfavourable, measures entitled to confidence cannot be procured. Mean Result. of A B. Position $46^\circ 52' nf$; Distance $24''.097$; Epoch 1825.16. of A C. Position $32^\circ 10' sf \pm$; single observation. No. DXLII. R. A. $6^h 51^m$; Decl. $53^\circ 1' N.$ Struve, 253; I. 69. Double; $8\frac{1}{2}$ and $8\frac{3}{4}$ magnitudes. Blackman-street; February 2, 1824; Five-feet Equatorial. Position = $66^\circ 35' sf$ | 5 Obs. | Diff. = $1^\circ 0'$ Distance = $3''.998$ | 5 Obs. | Diff. = $0''.411$ Stars beautifully defined, and very steady; but the night is hazy. Passy; February 11, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $67^\circ 14' sf$ | 5 Obs. | Diff. = $1^\circ 44'$ Distance = $3''.785$ | 5 Obs. | Diff. = $1''.034$ Mean Result. Position $66^\circ 54' sf$; Distance $3''.891$; Epoch 1824.59. This star has undergone a change of position so considerable, as to entitle it provisionally to a place among the binary or connected stars. At the Epoch 1782.87, an observation of Sir W. Herschel, noted as "very exact," makes the position $77^\circ 24' sf$. The change is $-10^\circ 30'$ in $41''.72$, giving an annual motion of $-0''.252$, in the direction $np sf$, or retrograde. This star therefore merits the assiduous attention of astronomers. (H.) and positions of 458 double and triple stars, &c. No. DXLIII. R. A. 6h 54m; Decl. 22° 25' S. Nova; Double; 9th and 9½ magnitudes. Passy; February 21, 1825; Seven-feet Equatorial. Position = 1° 34' np | 5 Obs. | Diff. = 0° 50' } Very difficult. Distance = 1° 30'.836 | 5 Obs. | Diff. = 0°.649 } Stars very unsteady. Passy; March 10, 1825; Seven-feet Equatorial. 10th and 10½ magnitudes. Position = 1° 17' np | 5 Obs. | Diff. = 0° 50' } Extremely difficult. Distance = 1° 32'.130 | 5 Obs. | Diff. = 1°.202 } Passy; March 28, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Distance = 1° 31'.329 | 5 Obs. | Diff. = 2°.164. Extremely difficult. Mean Result. Position 1° 25' np (10 Obs.); Epoch 1825.16; Distance 1° 31'.432 (15 Obs.); Epoch 1825.16. No. DXLIV. R. A. 7h 2m; Decl. 22° 35' N. Nova; Double; equal; each of the 9th magnitude, and bear a very good illumination. Passy; February 12, 1825; Seven-feet Equatorial. Position = 50° 54' sp or nf | 5 Obs. | Diff. = 2° 28' } Distance = 9°.223 | 5 Obs. | Diff. = 0°.456 } Passy; February 17, 1825; Seven-feet Equatorial. Equal; each of the 9th magnitude. Position = 48° 48' nf or sp | 5 Obs. | Diff. = 1° 8' } Very unsteady. Distance = 9°.632 | 5 Obs. | Diff. = 0°.384 } Passy; February 24, 1825; Portable Transit. Observed R. A. of the northern or following star = 7h 1' 33".79. Mean Result. Position 49° 51' sp or nf; Distance 9°.427; Epoch 1825.12. MDCCCXXVI. Mr. South's observations of the apparent distances No. DXLV. R. A. 7\textsuperscript{h} 5\textsuperscript{m}; Decl. 73° 23' N. Struve, 256; 1790, 387; Double; 8\(\frac{1}{2}\) and 9th magnitudes. Passy; January 5, 1825; Seven-feet Equatorial. Position = 8° 13' \(n^f\) | 5 Obs. | Diff. = 0° 58'. Passy; February 4, 1825; Seven-feet Equatorial. Position = 8° 52' \(n^f\) | 5 Obs. | Diff. = 0° 53'. Distance = 31".291 | 5 Obs. | Diff. = 0".481. Passy; February 6, 1825; Seven-feet Equatorial. 8\(\frac{1}{2}\) and 9th magnitudes. Distance = 30".879 | 5 Obs. | Diff. = 0".889. Mean Result. Position 8° 32' \(n^f\); Epoch 1825.05; Distance 31".085; Epoch 1825.09 No. DXLVI. R. A. 7\textsuperscript{h} 10\textsuperscript{m}; Decl. 31° 48' N. Nova; Triple; A 8\(\frac{1}{2}\), B 10th, and C of the 11th magnitudes. Measures of A B. Passy; February 12, 1825; Seven-feet Equatorial. Position = 89° 29' \(n^p\) | 5 Obs. | Diff. = 0° 37'. Distance = 1' 19".350 | 5 Obs. | Diff. = 0".601. Very difficult. Passy; February 17, 1825; Seven-feet Equatorial. 8\(\frac{1}{2}\) and 10th magnitudes. Position = 89° 15' \(n^p\) | 5 Obs. | Diff. = 0° 32'. Distance = 1' 19".850 | 5 Obs. | Diff. = 1'".202. Extremely difficult. Measures of A C. Passy; February 12, 1825; Seven-feet Equatorial. 8\(\frac{1}{2}\) and 11th magnitudes. Position = 20° 51' \(n^f\) | 2 Obs. | Diff. = 0° 38'. Distance = 2' 22".637 | 2 Obs. | Diff. = 0".793. Excessively difficult. Measures to be regarded with some distrust. No. D XLVI. continued. Passy; February 17, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $20^\circ 40' nf$; single observation. The night is become so hazy that no more measures can be obtained. Mean Result. of A B. Position $89^\circ 22' np$; Distance $1' 19''.600$; Epoch 1825.12. of A C. Position $20^\circ 47' nf$ (3 Obs.); Epoch 1825.12; Distance $2' 22''.637$ (2 Obs.); Epoch 1825.11. No. D XLVII. R. A. $7^h 15^m$; Decl. $20^\circ 48' N.$ Struve, 260; III. 48; Double; 8th and $9\frac{1}{2}$ magnitudes. Blackman-street; March 12, 1824; Five-feet Equatorial. Position = $50^\circ 51' nf$ | 5 Obs. | Diff. = $2^\circ 11'$ } Distance = $6''.511$ | 5 Obs. | Diff. = $0''.505$ } Blackman-street; March 31, 1824: Five-feet Equatorial. 8th and 10th magnitudes. Position = $50^\circ 37' nf$ | 5 Obs. | Diff. = $3^\circ 43'$ } Distance = $6''.521$ | 5 Obs. | Diff. = $0''.569$ } Measures very difficult. Mean Result. Position $50^\circ 44' nf$; Distance $6''.516$; Epoch 1824.21. There is a notable alteration perceivable in the position of this star. A measure on the 1st of January, 1783, marked "very exact," makes the angle $43^\circ 54' nf$, and the distance at the same time was found to be $6''.25$. The change of position amounts to $-6^\circ 50'$, being $-0''.166$ per annum, retrograde. Future observations must decide on the reality of this motion, and whether this is entitled to more than a provisional place among the Binary stars. (H.) Mr. South's observations of the apparent distances No. DXLVIII. R. A. 7h 17m; Decl. 22° 30' N. Struve, 261; V. 66; Double; 7th and 10th magnitudes. Passy; January 29, 1825; Seven-feet Equatorial. Position = 6° 3' np | 5 Obs. | Diff. = 0° 53' } Very steady. Distance = 36''.008 | 5 Obs. | Diff. = 1''.539 } Night remarkably fine. Passy; February 5, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 5° 42' np | 5 Obs. | Diff. = 0° 42' } Distance = 35''.231 | 5 Obs. | Diff. = 1''.034 } Mean Result. Position 5° 52' np; Distance 35''.619; Epoch 1825.09. An estimation in 1783 made the angle 1° or 2° np, and a measure of distance at the same time gave 34''.65. It is to be presumed therefore that this star is liable to no notable alteration in either respect. (H.) No. D LIX. R. A. 7h 20m; Decl. 14° 13' N. Struve, 264; Hist. Cæl. 314; Triple; A 6th, B 10th, and C of the 7th magnitudes. Measures of A B. Passy; January 6, 1825; Seven-feet Equatorial. Position = 39° 4' nf | 7 Obs. | Diff. = 5° 58' } Extremely difficult. Distance = 7''.985 | 5 Obs. | Diff. = 0''.649 } Passy; January 19, 1825; Seven-feet Equatorial. 6th and 11th or 12th magnitudes. Position = 40° 33' nf | 5 Obs. | Diff. = 5° 43' } Excessively difficult. Distance = 8''.014 | 5 Obs. | Diff. = 0''.721 } No. DXLIX. continued. Measures of A C. Passy; January 6, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position $=39^\circ 35' sf$ | 5 Obs. | Diff. = $0^\circ 33'$ | Distance $=1' 50''.988$ | 6 Obs. | Diff. = $1''.010$ | Passy; January 17, 1825; Seven-feet Eqnatorial. 6th and 7th magnitudes. Position $=39^\circ 35' sf$ | 5 Obs. | Diff. = $0^\circ 49'$ | Distance $=1' 52''.207$ | 6 Obs. | Diff. = $1''.202$ | Of A B no measures can be obtained, although the night is beautifully fine; the object-glass cannot be kept one minute free from moisture. Passy; March 26, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Distance $=1' 51''.699$ | 5 Obs. | Diff. = $1''.106$. Mean Result. of A B. Position $39^\circ 41' nf$ (12 Obs.); Distance $7''.999$; Epoch 1825.03. of A C. Position $39^\circ 35' sf$ (10 Obs.); Epoch 1825.03; Distance $1' 51''.627$ (17 Obs.); Epoch 1825.09. No. DL. R. A. $7^h 20^m$; Decl. $18^\circ 8'S$. Struve, 263; Hist. Cael. 281; Double; $7\frac{1}{2}$ and 8th magnitudes: small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position $26^\circ 22' sf$ | 5 Obs. | Diff. = $1^\circ 12$. . . . Passy; January 17, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Position $=26^\circ 1' sf$ | 5 Obs. | Diff. = $0^\circ 52'$ | Distance $=40''.192$ | 5 Obs. | Diff. = $0''.937$ | Passy; January 28, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Distance $=39''.899$ | 5 Obs. | Diff. = $1''.250$. Very unsteady. Mean Result. Position $26^\circ 12' sf$; Epoch 1825.02; Distance $40''.041$; Epoch 1825.05. Mr. South's observations of the apparent distances No. DLI. R.A. 7h 21m; Decl. 5° 37' N. Struve, 265; Hist. Cæl. 261; Double; 9th and 12th magnitudes; small, blue, and bears but a very slight illumination. Passy; January 2, 1825; Seven-feet Equatorial. Position = 24° 58' sp | 6 Obs. | Diff. = 1° 55' } Extremely difficult. Distance = 4''.686 | 5 Obs. | Diff. = 0''.456 } Passy; January 19, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 24° 32' sp | 5 Obs. | Diff. = 2° 48' } Very difficult. Distance = 4''.513 | 5 Obs. | Diff. = 1''.491 } Mean Result. Position 24° 46' sp (11 Obs.); Distance 4''.599 (10 Obs.); Epoch 1825.03. No. DLII. R.A. 7h 27'; Decl. 23° 4'S 145, 19; or Nova? Double; 7th and 7½ magnitudes. Passy; December 29, 1824; Seven-feet Equatorial. Position = 14° 53' np | 5 Obs. | Diff. = 0° 46' } Distance = 8''.860 | 5 Obs. | Diff. = 0''.408 } Passy; December 31, 1824; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 14° 54' np | 5 Obs. | Diff. = 0° 57' } Very unsteady. Distance = 9''.683 | 5 Obs. | Diff. = 0''.625 } Passy; January 28, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Distance = 8''.477 | 5 Obs. | Diff. = 1''.394. Rather difficult. Stars neither well defined or steady. The dew on the object glass is intolerably troublesome. The water precipitated on the instrument is trickling from it, falls upon my face during the observations of high stars, and is extremely annoying. Thermometer stands at 28°. Mean Result. Position 14° 53' np (10 Obs.); Epoch 1825.00; Distance 9''.007 (15 Obs.); Epoch 1825.02. and positions of 458 double and triple stars, &c. No. DLIII. R. A. 7h 28m; Decl. 14° 6' S. 34 (Bode) Off. Typograph.; Struve, 268; II. 63; Double; 8th and 8½ magnitudes. Placed in a telescopic constellation, I count more than 70 stars in the field. Passy; December 29, 1824; Seven-feet Equatorial. Position = 32° 48' n p | 5 Obs. | Diff. = 0° 23' } Distance = 7".383 | 5 Obs. | Diff. = 0".529 } A minute or two to the north of this star, and following it a few seconds of time, will be found a double star of the 5th or 6th class; and about the same declination as this last-named star, by sweeping a few minutes in right ascension, a double star of the 4th class (8th or 10th magnitudes) will be seen in the field. Passy; January 17, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 33° 52' n p | 5 Obs. | Diff. = 1° 55' } Distance = 7".492 | 5 Obs. | Diff. = 0".601 } Mean Result. Position 33° 20' n p; Distance 7".437; Epoch 1825.02. This star has undergone no material change in position or distance since Sir W. Herschel's observations in 1783, which made it 30° 12' n p, and 6 or 7" by estimation of diameters. (H.) No. DLIV. R. A. 7h 28m; Decl. 14° 7' S. Nova; Double; 8th and 15th magnitudes. The large star precedes the second star of 34 (Bode) Off. Typogr. 32 seconds of time, and is about 39 seconds to the south of that star. Passy; March 12, 1825; Seven-feet Equatorial. Position = 54° 37' n f | 5 Obs. | Diff. = 1° 19' } Distance = 20".355 | 5 Obs. | Diff. = 1".154 } Excessively difficult. The small star will neither bear illumination nor magnifying power. Observations were made with 105: with 179 I could not obtain any measures. Mr. South's observations of the apparent distances No. DLIV. continued. Passy; March 17, 1825; Seven-feet Equatorial. 8th and 15th magnitudes. Position = $54^\circ 56' nf$ | 3 Obs. | Diff. = $3^\circ 47'$ Excessively difficult. Measures of distance cannot be procured; the small star will not bear the slightest illumination. Observed with 105; with 179 the small star was invisible. The accuracy of the results is I fear somewhat questionable. Passy; March 23, 1825; Seven-feet Equatorial. 8th and 15th magnitudes. Position = $54^\circ 37' nf$ | 5 Obs. | Diff. = $0^\circ 42'$ Excessively difficult. Distance = $20''.197$ | 5 Obs. | Diff. = $1''.394$ Observed with the ordinary power of 179, on the meridian. Night cloudy. Stars of considerable southern declination are alone visible, but they are unusually bright, and tolerably steady. Mean Result. Position $54^\circ 41' nf$ (13 Obs.); Distance $20''.276$ (10 Obs.); Epoch; 1825.20. No. DLV. R.A. $7^\text{h} 28^\text{m}$; Decl. $14^\circ 4'$ S. Nova; $nf$ 34 BODE Off. Typograph. Double; 7½ and 8th magnitudes. Passy; December 29, 1825; Seven-feet Equatorial. Position = $41^\circ 52' sp$ | 6 Obs. | Diff. = $1^\circ 10'$ Distance = $1' 34''.529$ | 5 Obs. | Diff. = $1''.058$ It is the double star first alluded to in the observations of 34 BODE Off. Typog.; and its smaller star has nearly the same R.A. as the larger star of 34 Off. Typog. Passy; December 31, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = $42^\circ 22' sp$ | 6 Obs. | Diff. = $0^\circ 36'$ Rather difficult. Distance = $1' 34''.933$ | 5 Obs. | Diff. = $0''.625$ Night very unfavourable. Mean Result. Position $42^\circ 17' sp$ (12 Obs.); Distance $1' 34''.731$ (10 Obs.); Epoch 1825.00. and positions of 458 double and triple stars, &c. No. DLVI. R. A. $7^h\ 28^m$; Decl. $65^\circ\ 34'$ N. Struve, 267; P. VII. 159. Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; January 5, 1825; Seven-feet Equatorial. Position = $85^\circ\ 58'\ n.f$ | 5 Obs. | Diff. = $1^\circ\ 20'$ Distance = $16''.285$ | 5 Obs. | Diff. = $0''.481$ Passy; February 4, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{4}$ magnitudes. Position = $85^\circ\ 28'\ s.p$ | 5 Obs. | Diff. = $1^\circ\ 27'$ Distance = $16''.066$ | 5 Obs. | Diff. = $0''.408$ Stars very steady. Thermometer stands at $27^\circ$. Wind very high. Mean Result. Position $85^\circ\ 43'\ n.f$; Distance $16''.175$; Epoch 1825.05. No. DLVII. R. A. $7^h\ 29^m$; Decl. $14^\circ\ 3'$ S. Nova; Double; 8th and 10th magnitudes; small, blue. Passy; March 10, 1825; Seven-feet Equatorial. Position = $66^\circ\ 38'\ n.p$ | 5 Obs. | Diff. = $1^\circ\ 25'$ Distance = $1' 6''.225$ | 5 Obs. | Diff. = $0''.865$ The larger star of this double star follows the first of 34 (Bode) Off. Typogr. $1' 2''.3$ of time, and is to the north of that star about $2' 47''$. Passy; March 12, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $67^\circ\ 5'\ n.p$ | 5 Obs. | Diff. = $0^\circ\ 41'$ Distance = $1' 6''.488$ | 5 Obs. | Diff. = $0''.793$ Mean Result. Position $66^\circ\ 51'\ n.p$; Distance $1' 6''.356$; Epoch 1825.19. MDCCCXXVI. Mr. South's observations of the apparent distances No. DLVIII. R. A. 7ʰ 33ᵐ; Decl. 3° 6′ S. Struve, 271; Hist. Cæl. 275. Double; 9th and 10th magnitudes. Passy; January 2, 1825: Seven-feet Equatorial. Position = 31° 36′ sp | 5 Obs. | Diff. = 1° 22′ } Difficult. Distance = 20″.223 | 5 Obs. | Diff. = 1″.010 } Difficult. Passy; January 19, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 32° 13′ sp | 5 Obs. | Diff. = 1° 43′ } Very difficult. Distance = 19″.261 | 5 Obs. | Diff. = 0″.697 } Very difficult. Passy; January 28, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Distance = 20″.173 | 5 Obs. | Diff. = 0″.962. Very difficult. The stars are not steady; and the deposition of moisture on both surfaces of the object-glass is so copious and rapid, that although well wiped off, before the instrument can be replaced upon the star it re-collects, and compels me to discontinue the observations; a circumstance much to be regretted, for the night is beautifully clear. Thermometer in the Observatory stands at 28°. Mean Result. Position 31° 54′ sp (10 Obs.); Epoch 1825.03; Distance 19″.886 (15 Obs.) ; Epoch 1825.04. No. DLIX. R. A. 7ʰ 34ᵐ; Decl. 28° 28′ N. Pollux; Struve, 274; VI. 42; Triple; A 2nd, B 15th, and C of the 20th magnitudes. Measures of A B. Passy; February 5, 1825; Seven-feet Equatorial. Position = 17° 13′ ± nf | 5 Obs. | Diff. = 0° 21′ } Excessively difficult. Distance = 3° 19″.469 ± | 5 Obs. | Diff. = 2″.885 } Excessively difficult. Observations liable to some slight error. No. DLIX. continued. Passy; February 9, 1825; Seven-feet Equatorial. 2nd and 15th magnitudes. Position = $17^\circ 27' nf \pm$ | 5 Obs. | Diff. = $1^\circ 11'$ } Excessively difficult. Distance = $3' 15''.961 \pm$ | 2 Obs. | Diff. = $0''.553$ } Results probably a little inaccurate. Measures of A C. Passy; February 5, 1825; Seven-feet Equatorial. 2nd and 20th magnitudes. Position = $24^\circ 6' nf$ | 2 Obs. | Diff. = $0^\circ 43'$. Excessively difficult. The star C will not bear even the least illumination. No observations of distance can be gotten; but by estimation, it is about two-thirds of the distance from A, that B is. The night is remarkably fine; indeed on no other can either of the stars B or C be seen with this instrument. Passy; February 9, 1825; Seven-feet Equatorial. 2nd and 20th magnitudes. Position = $23^\circ 25' nf$ | 5 Obs. | Diff. $3^\circ 57'$. Excessively difficult. Of C no distances can be procured. The night is unusually fine, but the star will not bear the slightest illumination. Mean Result. of A B. Position $17^\circ 20' nf$ (10 Obs.); Distance $3' 18''.467$ (7 Obs.); Epoch 1825.10. of A C. Position $23^\circ 37' nf$ (7 Obs.); Distance (estimated) $2' 12''.312 \pm$; Epoch 1825.10. The position of the nearer star in 1783 was $24^\circ 28' nf$, differing only $51'$ from the present measure. (H.) Mr. South's observations of the apparent distances No. DLX. R. A. $7^h\ 37^m$; Decl. $29^\circ\ 13' N.$ Struve, 279; V. 67. Double; 6th and 12th magnitudes. Passy; January 6, 1825; Seven-feet Equatorial. Position = $89^\circ\ 22'\ np$ | 5 Obs. | Diff. = $1^\circ\ 3'$ } Extremely difficult. Distance = $1'\ 29''.821$ | 5 Obs. | Diff. = $1''.202$ } Passy; January 25, 1825; Seven-feet Equatorial. 6th and 12th magnitudes. Position = $89^\circ\ 21'\ np$ | 5 Obs. | Diff. = $1^\circ\ 36'$ } Extremely difficult. Distance = $1'\ 31''.290$ | 5 Obs. | Diff. = $2''.284$ } Passy; March 26, 1825; Seven-feet Equatorial. 6th and 12th magnitudes. Distance = $1'\ 30''.684$ | 5 Obs. | Diff. = $0''.913$. Extremely difficult. Mean Result. Position $89^\circ\ 22'\ np$ (10 Obs.); Epoch 1825.04; Distance $1'\ 30''.598$ (15 Obs.); Epoch 1825.10. There is a doubt as to the identity of the star here measured with V. 67. (H.) No. DLXI. R. A. $7^h\ 41^m$; Decl. $25^\circ\ 16' S.$ Nova; Double; 10th and 11th magnitudes. Passy; February 19, 1825; Seven-feet Equatorial. Position = $87^\circ\ 45'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 48'$ } Excessively difficult. Distance = $51''.744$ | 5 Obs. | Diff. = $1''.322$ } Neither star bears sufficient illumination. Passy; February 21, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $88^\circ\ 15'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 27'$ } Excessively difficult. Distance = $49''.990$ | 5 Obs. | Diff. = $0''.962$ } The star B is double of the 2nd class: its small star is about $35^\circ\ sp$, and distance perhaps 5 seconds; it will not bear the slightest illumination. The measures of A B, particularly those of distance, are precarious. and positions of 458 double and triple stars, &c. No. DLXI. continued. Passy; March 26, 1825; Seven-feet Equatorial. Distance = 50".960 | 5 Obs. | Diff. = 1".154. Excessively difficult. Mean Result. Position 88° 0' nf (10 Obs.); Epoch 1825.13; Distance 50".898 (15 Obs.); Epoch 1825.17. No. DLXII. R. A. 7h 49m; Decl. 79° 59' N. Double; 9th and 9½ magnitudes. Passy; February 11, 1825; Seven-feet Equatorial. Position = 80° 12' nf | 5 Obs. | Diff. = 0° 27' } Very good. Distance = 21".409 | 5 Obs. | Diff. = 0".432 } These stars bear a very good illumination: their circumpolar situation allowing them to be well observed throughout the year, and their position, (so near the perpendicular,) rendering them susceptible of the most accurate measures, they would be admirably adapted for parallax observations. Passy; February 17, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = 79° 58' nf | 5 Obs. | Diff. = 1° 43' } Distance = 21".471 | 5 Obs. | Diff. = 0".456 } Very satisfactory. Mean Result. Position 80° 5' nf; Distance 21".440; Epoch 1825.12. No. DLXIII. R. A. 8h 0m; Decl. 19° 18' S. Nova; Double; 6th and 7th magnitudes. Passy; March 21, 1825; Seven-feet Equatorial. Position = 34° 17' nf | 5 Obs. | Diff. = 0° 41' } Very steady. Distance = 2' 13".426 | 5 Obs. | Diff. = 1'.010 } Passy; March 28, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 34° 22' nf | 5 Obs. | Diff. = 0° 37' } Tolerably steady. Distance = 2' 13".979 | 5 Obs. | Diff. = 2".043 } Mean Result. Position 34° 20' sp; Distance 2' 13".702; Epoch 1825.22. Mr. South's observations of the apparent distances No. DLXIV. R. A. 8ʰ 2ᵐ; Decl. 1° 48' N. Struve, 290; Hist. Cæl. 263. Double; equal; each of the 10th magnitude. Passy; January 2, 1825; Seven-feet Equatorial. Position = 68° 37' np or sf | 5 Obs. | Diff. = 0° 30' } Very difficult. Distance = 33''.639 | 5 Obs. | Diff. = 0''.889 } Neither star bears a good illumination. Passy; January 25, 1825; Seven-feet Equatorial. 10th and 10½ magnitudes. Position = 68° 29' np | 5 Obs. | Diff. = 1° 18' } Very difficult. Distance = 33''.603 | 5 Obs. | Diff. = 0''.962 } Mean Result. Position 68° 33' np or sf; Distance 33''.621; Epoch 1825.03. No. DLXV. R. A. 8ʰ 12ᵐ; Decl. 42° 34' N. Struve, 294; Hist. Cæl. 54; Double; 7th and 10th magnitudes. Blackman-street; March 13, 1824; Five-feet Equatorial. Position = 74° 5' sf | 5 Obs. | Diff. = 0° 52' } Very difficult. Distance = 1° 12''.361 | 5 Obs. | Diff. = 0''.885 } Passy; January 25, 1825; Seven-feet Equatorial. 7th and 9½ magnitudes. Position = 75° 31' sf | 5 Obs. | Diff. = 0° 29' } Very difficult. Distance = 1° 13''.801 | 5 Obs. | Diff. = 0''.841 } Passy; February 3, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Distance = 1° 12''.959 | 5 Obs. | Diff. = 0''.721. Very difficult. Mean Result. Position 74° 48' sf (10 Obs.); Epoch 1824.59; Distance 1° 13''.040 (15 Obs.); Epoch 1824.75. and positions of 458 double and triple stars, &c. No. DLXVI. R. A. $8^h15^m$; Decl. $28^\circ26'$ N. φ' Cancri; STRUVE, 296; VI. 109. Double; 7th and 12th, or 15th magnitudes. Passy; January 29, 1825; Seven-feet Equatorial. Position = $68^\circ\phi'nf\pm$; single Observation. The night, which had been remarkably fine, cloudless, and unusually favourable for delicate observations, on account of the extreme steadiness of the stars, which enabled me to keep them bisected by the wires as long as I pleased, suddenly became bad; a dense fog in less than five minutes after the instrument was placed upon this star, rendered all the stars, Jupiter and Saturn, invisible; the Moon's place also was scarcely to be distinguished. It has frozen all day: the thermometer in the shade stood between $29^\circ$ and $31^\circ$: it now indicates $28^\circ$. The instrument is covered with hoar frost, and the fog is so severe that I cannot see across the garden, a distance from the observatory not more than 100 feet. Passy; February 5, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $67^\circ59'nf|3$ Obs.| Diff. = $0^\circ59'$. Excessively difficult. Observations of distance impracticable; the small star will not bear the slightest illumination. Passy; February 9, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $68^\circ22'nf|5$ Obs.| Diff. = $1^\circ36'$ Distance = $2'\ 1''.209|5$ Obs.| Diff. = $1''.683$ Excessively difficult. Passy; March 21, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Distance = $2'\ 0''.091\pm$; single Observation. Excessively difficult. The small star is so excessively faint, that it will not bear even the slightest illumination; and the measure here given was the result of half an hour's attention. Passy; March 26, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Distance = $2'\ 0''.851|5$ Obs.| Diff. = $2''.115$. Excessively difficult. Mean Result. Position $68^\circ12'nf$ (9 Obs.): Epoch 1825.09; Distance $2'\ 0''.945$ (11 Obs.); Epoch 1825.18. Sir W. HERSCHEL has given no measures of this star. (H.) Mr. South's observations of the apparent distances No. DLXVII. R. A. 8ʰ 15ᵐ; Decl. 20° 43′ N. Nova; Double; 7th and 9th magnitudes; small, blue. Passy; February 15, 1825; Seven-feet Equatorial. Position = 79° 33′ sp | 5 Obs. | Diff. = 0° 39′ } Difficult. Distance = 37°.595 | 5 Obs. | Diff. = 0°.841 } Passy; February 17, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 79° 17′ sp | 5 Obs. | Diff. = 1° 20′ } Difficult. Distance = 37°.970 | 5 Obs. | Diff. = 0°.841 } Passy; February 24, 1825; Portable Transit. Observed R. A. of the larger star = 8ʰ 14′ 43″.11. Mean Result. Position 79° 25′ sp; Distance 37°.782; Epoch 1825.12. No. DLXVIII. R. A. 8ʰ 17ᵐ; Decl. 23° 27′ S. Nova; Double; 6th and 9th magnitudes; small, blue. Passy; February 21, 1825; Seven-feet Equatorial. Position = 4° 32′ nf | 5 Obs. | Diff. = 1° 11′ } Difficult. Distance = 40°.464 | 5 Obs. | Diff. = 0°.721 } Passy; February 23, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 5° 8′ nf | 5 Obs. | Diff. = 1° 1′ } Very difficult. Distance = 41°.165 | 5 Obs. | Diff. = 0°.841 } Passy; March 12, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 5° 20′ nf | 5 Obs. | Diff. = 1° 3′ } Very difficult. Distance = 40°.341 | 5 Obs. | Diff. = 1°.611 } Small star is blue, and does not bear a good illumination. Night tolerably clear, but stars of low altitude unsteady. Mean Result. Position 5° 0′ nf (15 Obs.); Distance 40°.635 (15 Obs.); Epoch 1825.16. and positions of 458 double and triple stars, &c. No. DLXIX. R. A. $8^h\ 23^m$; Decl. $25^\circ\ 25'$ S. Nova; Double; 8th and 10th magnitudes: small, blue. Passy; February 19, 1825; Seven-feet Equatorial. Position = $71^\circ\ 34'\ np$ | 5 Obs. | Diff. = $1^\circ\ 44'$ } Excessively difficult. Distance = $39''.033$ | 5 Obs. | Diff. = $0''.649$ } The small star bears but the slightest illumination. Passy; February 23, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $71^\circ\ 33'\ np$ | 5 Obs. | Diff. = $1^\circ\ 2'$ } Excessively difficult. Distance = $41''.649 \pm$ | 2 Obs. | Diff. = $0''.360$ } Observations of distance little else than approximations. Passy; February 25, 1825; Portable Transit. Observed R. A. of the larger star = $8^h\ 22'\ 54''.88$. Passy; March 18, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Distance = $39''.523$ | 2 Obs. | Diff. = $0''.168$. Excessively difficult. The night is very fine, but the small star will not allow any illumination of the micrometer wires. Measures entitled to little confidence. Mean Result. Position $71^\circ\ 34'\ np$ (10 Obs.); Epoch 1825.13; Distance $39''.723 \pm$ (9 Obs.); Epoch 1825.16. Mr. South's observations of the apparent distances No. DLXX. R.A. $8^h\ 29'$; Decl. $20^\circ\ 15'$ N. Nova; Triple; A $8\frac{1}{2}$, B $9\frac{1}{2}$, and C of the 9th magnitudes. Measures of A B. Passy; February 19, 1825; Seven-feet Equatorial. | Position = $6^\circ\ 37'\ n^f$ | 5 Obs. | Diff. = $1^\circ\ 3'$ | | Distance = $57''.351$ | 5 Obs. | Diff. = $0''.793$ | Difficult. Passy; February 23, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. | Position $6^\circ\ 28'\ n^f$ | 5 Obs. | Diff. = $1^\circ\ 4'$ | | Distance $57''.055$ | 5 Obs. | Diff. = $0''.962$ | Very difficult. Night hazy; the small star very faint. Passy; March 12, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Distance = $57''.605$ | 5 Obs. | Diff. = $0''.601$. Very difficult. The small star is blue, and bears but a very slight illumination. Measures of A C. Passy; February 19, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. | Position = $75^\circ\ 3'\ n^p$ | 3 Obs. | Diff. = $0^\circ\ 18'$ | | Distance = $2'57''.581$ | 3 Obs. | Diff. = $0''.673$ | Passy; February 28, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. | Position = $74^\circ\ 25'\ n^p$ | 3 Obs. | Diff. = $0^\circ\ 38'$ | | Distance = $2'58''.394$ | 3 Obs. | Diff. = $0''.625$ | Passy; March 19, 1825; Portable Transit. Observed R. A. of the star A = $8^h\ 29'5''.18$. Declination = $20^\circ\ 15'16''$ N. Mean Result. of A B. Position $6^\circ\ 32'\ n^f$ (10 Obs.) Epoch 1825.14. Distance $57''.517$ (15 Obs.); Epoch 1825.15. of A C. Position $74^\circ\ 44'\ n^p$ (6 Obs.); Distance $2'57''.987$ (6 Obs.); Epoch 1825.14. No. DLXXI. R. A. $8^h\ 30^m$; Decl. $20^\circ\ 8'$ N. Nova; Triple; A $7\frac{1}{2}$, B 8th, and C of the 6th magnitudes. Measures of A B. Passy; February 17, 1825; Seven-feet Equatorial. | Position = $66^\circ\ 57'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 8'$ | | Distance = $44''.756$ | 5 Obs. | Diff. = $0''.481$ | Passy; February 18, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. | Position = $67^\circ\ 5'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 29'$ | | Distance = $45''.318$ | 5 Obs. | Diff. = $0''.913$ | Measures of A C. Passy; February 17, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and 6th magnitudes. | Position = $29^\circ\ 1'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 36'$ | | Distance = $1'32''.276$ | 5 Obs. | Diff. = $0''.505$ | C being to the south of A. Passy; February 18, 1825; Seven-feet Equatorial. 7th and 6th magnitudes. | Position = $29^\circ\ 4'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 17'$ | | Distance = $1'32''.238$ | 5 Obs. | Diff. = $1''.443$ | The star C being to the south of A. Passy; March 18, 1825; Portable Transit. Observed R. A. of the star A = $8^h\ 29'56''.31$. Declination $20^\circ\ 8'0''$ N. Mean Result. of A B Position $67^\circ\ 1'\ s f$; Distance $45''.037$; of A C Position $29^\circ\ 2'\ s p$; Distance $1'32''.257$; Epoch 1825.13. Mr. South's observations of the apparent distances No. DLXXII. R. A. $8^h\ 30^m$; Decl. $20^\circ\ 16'$ N. Nova; Double; 7th and 9th magnitudes; small, blue. Passy; February 19, 1825; Seven-feet Equatorial. Position = $0^\circ\ 16'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 33'$ Distance = $1'\ 15''.811$ | 5 Obs. | Diff. = $1''.058$ Passy; February 23, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $0^\circ\ 17'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 32'$ Difficult. Distance = $1'\ 16''.082$ | 5 Obs. | Diff. = $1''.803$ Passy; March 21, 1825; Portable Transit. Observed R. A. of the larger star = $8^h\ 30'\ 20''.43$. Declination = $20^\circ\ 16' 7''$ N. Mean Result. Position $0^\circ\ 16'\ nf$; Distance $1'\ 15''.946$; Epoch 1825.14. No. DLXXIII. R. A. $8^h\ 30^m$; Decl. $20^\circ\ 15'$ N. Nova; Double; 6th and 12th or 15th magnitudes; the small star is a mere point, yet bears a very tolerable illumination. The large star forms a triangle with the double star No. 572, itself being at the vertex of the triangle. Passy; February 19, 1825; Seven-feet Equatorial. Position = $37^\circ\ 6'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 49'$ Extremely difficult. Distance = $20''.288$ | 5 Obs. | Diff. = $1''.154$ Passy; February 25, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $36^\circ\ 58'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 40'$ Excessively difficult. Distance = $21''.096$ | 5 Obs. | Diff. = $1''.683$ No. DLXXIII. continued. Passy; March 19, 1825; Portable Transit. Observed R. A. of the larger star, $8^h\ 30'\ 21''.42$. Declination = $20^\circ\ 15'\ 5''$ N. Passy; March 21, 1825; Seven-feet Equatorial. I have tried several times, on different fine nights, to procure other measures of this double star; but although the weather has been particularly favourable, I have not been able to succeed. Is the small star variable? Passy; April 6, 1825; Seven-feet Equatorial. I have been again foiled in my endeavours to measure this double star; yet the night is beautifully clear. I can distinguish the small star, but under the least illumination it is invisible. Mean Result. Position $37^\circ\ 2' nf$; Distance $20''.692$; Epoch $1825.14$. No. DLXXIV. R. A. $8^h\ 30'm$; Decl. $20^\circ\ 8' N$. Nova; Double; 6th and 7th magnitudes: its larger star follows the star A of the triple star No. 571, about 31 seconds of time, and is about 23 seconds to the south of it. Passy; February 17, 1825; Seven-feet Equatorial. Position = $20^\circ\ 59'sp$ | 5 Obs. | Diff. = $0^\circ\ 29'$ Distance = $2'\ 12''.449$ | 5 Obs. | Diff. = $0''.962$ Passy; February 18, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $21^\circ\ 5'sp$ | 5 Obs. | Diff. = $0^\circ\ 18'$ Distance = $2'\ 13''.151$ | 5 Obs. | Diff. = $1''.755$ Passy; March 10, 1825; Portable Transit. Observed R. A. of the larger star = $8^h\ 30'\ 27''.22$. Declination = $20^\circ\ 7'\ 37''$ N. Mean Result. Position $21^\circ\ 2'sp$; Distance $2'\ 12''.803$; Epoch $1825.13$. Mr. South's observations of the apparent distances No. DLXXV. R. A. 8ʰ 31ᵐ; Decl. 6° 25' N. Struve, 303; IV. 54. Double; 8th and 10th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = 59° 52' nf | 5 Obs. | Diff. = 1° 25' } Difficult. Distance = 27''.711 | 5 Obs. | Diff. = 0''.937 Passy; January 25, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 59° 43' nf | 5 Obs. | Diff. = 1° 40' } Difficult. Distance = 27''.396 | 5 Obs. | Diff. = 0''.601 Passy; April 7, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Distance = 27''.042 | 5 Obs. | Diff. = 0''.721. Difficult. Mean Result. Position 59° 47' nf (10 Obs.); Epoch 1825.03; Distance 27''.383 (15 Obs.); Epoch 1825.11. This star has undergone no appreciable change, as the measures of 1783 gave Position 59° 24' nf (mean of two measures); Distance 25''.7. (H.) No. DLXXVI. R. A. 8ʰ 31ᵐ; Decl. 49° 30' N. Struve, 304; P. VIII. 131; Double; 9½ and 10th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = 61° 10' np | 5 Obs. | Diff. = 0° 54' } Difficult. Distance = 10''.995 | 5 Obs. | Diff. = 0''.288 Passy; January 25, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 60° 47' np | 5 Obs. | Diff. = 3° 47' } Very difficult. Distance = 9''.671 | 5 Obs. | Diff. = 0''.745 Passy; February 3, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Distance = 10''.289 | 6 Obs. | Diff. = 1''.034. Very difficult. Mean Result. Position 60° 58' np (10 Obs.); Distance 10''.316 (16 Obs.); Epoch 1825.05. and positions of 458 double and triple stars, &c. No. DLXXVII. R.A. 8h 33m; Decl. 11° 33' S. Struve, 305; Hist. Cæl. 270; Double; 9th and 10th magnitudes: both bluish. Passy; January 2, 1825; Seven-feet Equatorial. Position = 30° 55' np | 7 Obs. | Diff. = 1° 53' } Extremely difficult. Distance = 5".475 | 5 Obs. | Diff. = 0".721 Passy; January 25, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = 31° 24' np | 7 Obs. | Diff. = 5° 5' } Excessively difficult. Distance = 5".703 | 5 Obs. | Diff. = 0".769 Mean Result. Position 31° 9' np (14 Obs.); Distance 5".589 (10 Obs.); Epoch 1825.03. No. DLXXVIII. R.A. 8h 33m; Decl. 11° 16' S. Nova; Double; 8th and 11th, or 12th magnitudes. Passy; February 21, 1825; Seven-feet Equatorial. Position = 32° 4' np | 5 Obs. | Diff. = 1° 42' } Extremely difficult. Distance = 30".970 | 5 Obs. | Diff. = 1".202 Observations of distance perhaps a little doubtful. Passy; February 24, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 32° 13' np | 5 Obs. | Diff. = 0° 30' } Extremely difficult. Distance = 30".646 | 5 Obs. | Diff. = 1".827 The small star is blue, and bears only the most feeble illumination. Mean Result. Position 32° 6' np; Distance 30".808; Epoch 1825.14. Mr. South's observations of the apparent distances No. DLXXIX. R. A. $8^h\ 35^m$; Decl. $6^\circ\ 35'$ S. 31 Monocerotis; South's Catalogue; VI. 82. Double; 6th and 9th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = $38^\circ\ 36'\ np$ | 5 Obs. | Diff. = $0^\circ\ 56'$ | Distance = $1'\ 17''.520$ | 5 Obs. | Diff. = $0''.481$ | Passy; January 17, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = $38^\circ\ 34'\ np$ | 5 Obs. | Diff. = $1^\circ\ 6'$ | Distance = $1'\ 18''.316$ | 5 Obs. | Diff. = $0''.697$ | Mean Result. Position $38^\circ\ 35'\ np$; Distance $1'\ 17''.918$; Epoch 1824.02. The angle of position of this star as measured in 1783 was $40^\circ\ 0'\ np$, differing only $1^\circ\ 25'$ from the present. (H.) No. DLXXX. R. A. $8^h\ 36^m$; Decl. $1^\circ\ 57'$ S. Struve, 308; P. VIII. 160. Double; 8½ and 9th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = $12^\circ\ 2'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 52'$ | Distance = $4''.374$ | 5 Obs. | Diff. = $0''.913$ | Passy; January 17, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $11^\circ\ 6'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 49'$ | Distance = $5''.487$ | 5 Obs. | Diff. = $0''.336$ | Passy; February 3, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Distance = $4''.991$ | 5 Obs. | Diff. = $0''.673$ | Mean Result. Position $11^\circ\ 34'\ sp$ (10 Obs.); Epoch 1824.02; Distance $4''.951$ (15 Obs.); Epoch 1825.04. and positions of 458 double and triple stars, &c. No. DLXXXI. R. A. 8h 37m; Decl. 11° 50' N. Struve, 309; Hist. Cæl. 218. Double; 9th and 9½ magnitudes. Passy; January 29, 1825; Seven-feet Equatorial. Position = 82° 24' np | 6 Obs. | Diff. = 3° 5' } Distance = 13".758 | 5 Obs. | Diff. = 0".986 } Very difficult. Night extremely favourable; but neither star bears sufficient illumination. Passy; February 3, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 84° 11' np | 5 Obs. | Diff. = 1° 1' } Distance = 12".945 | 5 Obs. | Diff. = 0".841 } Very difficult. Passy; February 11, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 84° 0' np | 5 Obs. | Diff. = 1° 1' } Distance = 13".279 | 6 Obs. | Diff. = 0".601 } Very difficult. Thermometer stands at 28°; no dew on the object-glass; but on the polar axis there has been a considerable quantity, throughout the night. Mean Result. Position 83° 27' np (16 Obs.); Distance 13".324 (16 Obs.); Epoch 1825.09. No. DLXXXII. R. A. 8h 39m; Decl. 35° 45' N. 130 (Bode) Lyncis; Struve, 310; Hist. Cæl. 220. A very neat double star; nearly equal; 9th and 9½ magnitudes, and bear a very good illumination. Blackman-street; March 12, 1824; Five-feet Equatorial. Position = 7° 30' sf | 5 Obs. | Diff. = 1° 0' } Distance = 3".556 | 5 Obs. | Diff. = 0".632 } Blackman-street; March 31, 1824; Five-feet Equatorial. Equal; each 9th magnitude. Position = 7° 43' sf or np | 5 Obs. | Diff. = 1° 58' } Distance = 3".767 | 5 Obs. | Diff. = 0".529 } Mean Result. Position 7° 36' sf or np; Distance 3".661; Epoch 1824.22. MDCCCXXVI. Mr. South's observations of the apparent distances No. DLXXXIII. R. A. 8\textsuperscript{h} 41\textsuperscript{m}; Decl. 33° 9' N. σ' Cancri; Struve, 312; VI. 86. Double; 7th and 15th magnitudes; small, blue. Passy; February 6, 1825; Seven-feet Equatorial. Position = 66° 53' nf | 5 Obs. | Diff. = 1° 30' \{ Excessively difficult. Distance = 1' 22".449 ± | 5 Obs. | Diff. = 5".891 \} The small star is not visible under the slightest illumination of the wires; the observed distances are perhaps little better than approximations. Passy; February 9, 1825; Seven-feet Equatorial. 7th and 15th magnitudes. Position = 66° 36' nf | 6 Obs. | Diff. = 1° 22' \{ Extremely difficult. Distance = 1' 21".521 ± | 3 Obs. | Diff. = 1".034 \} Mean Result. Position 66° 44' nf (11 Obs.); Distance 1' 22".101 ± (8 Obs.); Epoch 1825.10; Sir W. Herschel has given no measures of this star. (H.) No. DLXXXIV. R. A. 8\textsuperscript{h} 47\textsuperscript{m}; Decl. 10° 43' S. Nova; Double; 8th and 10th magnitudes; small, blue. Passy; March 23, 1825; Seven-feet Equatorial. Position = 58° 37' sp | 5 Obs. | Diff. = 0° 37' \{ Extremely difficult. Distance = 1' 11".022 | 5 Obs. | Diff. = 1".563 \} The stars only visible by glimpses. Night almost uniformly cloudy; the results are perhaps a little inaccurate. Passy; March 24, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 59° 0' sp | 5 Obs. | Diff. = 0° 37' \{ Very difficult. Distance = 1' 11".356 | 5 Obs. | Diff. = 0".913 \} Mean Result. Position 58° 49' sp; Distance 1' 11".189; Epoch 1825.22. and positions of 458 double and triple stars, &c. No. DLXXXV. R. A. 8h 47m; Decl. 17° 34' S. Nova; Double; 6th and 7th magnitudes. Passy; March 19, 1825; Seven-feet Equatorial. Position = 53° 9' sf | 5 Obs. | Diff. = 0° 56' } Distance = 1° 9".298 | 5 Obs. | Diff. = 0".841 } Passy; March 21, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = 53° 20' sf | 5 Obs. | Diff. = 0° 56' } Distance = 1° 9".594 | 5 Obs. | Diff. = 0".432 } Passy; March 21, 1825; Portable Transit. Observed R. A. of the larger star = 8h 47' 12".59. Passy; March 24, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = 53° 8' sf | 5 Obs. | Diff. = 1° 16' } Distance = 1° 9".197 | 5 Obs. | Diff. = 1".659 } Unsteady. Measured inadvertently, being unaware that the star had been already well observed. Mean Result. Position 53° 12' np (15 Obs.); Distance 1° 9".363 (15 Obs.); Epoch 1825.22. No. DLXXXVI. R. A. 8h 50m; Decl. 32° 57' N. σ⁴ Cancri; STRUVE, 318. Double; 6th and 10th magnitudes; small, blue. Passy; January 6, 1825; Seven-feet Equatorial. Position = 45° 0' sf | 5 Obs. | Diff. = 2° 23' } Very difficult. Distance = 4°.594 | 5 Obs. | Diff. = 0".456 } Passy; January 25, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 45° 46' sf | 6 Obs. | Diff. = 8° 30' } Extremely difficult. Distance = 5°.107 | 5 Obs. | Diff. = 0".865 } The small star is blue, and scarcely bears any illumination. Night particularly fine, but the dew on the object-glass is sadly troublesome. Mean Result. Position 45° 25' sf (11 Obs.); Distance 4".850 (10 Obs.); Epoch 1825.04. Mr. South's observations of the apparent distances No. DLXXXVII. R. A. $8^h\ 52^m$; Decl. $82^\circ\ 8'$ N. Nova; Double; 8th and 12th magnitudes; small, blue. Passy; March 21, 1825; Seven-feet Equatorial. Position = $48^\circ\ 56'\ np$ | 5 Obs. | Diff. = $0^\circ\ 33'$ } Excessively difficult. Distance = $24''.174$ | 5 Obs. | Diff. = $2''.957$ } The small star becomes invisible, under very slight illumination. Passy; March 26, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $48^\circ\ 59'\ np$ | 5 Obs. | Diff. = $2^\circ\ 40'$ } Extremely difficult. Distance = $24''.510$ | 5 Obs. | Diff. = $1''.082$ } Mean Result. Position $48^\circ\ 57'\ np$; Distance $24''.342$; Epoch 1825.22. No. DLXXXVIII. R. A. $8^h\ 55^m$; Decl. $16^\circ\ 57'$ S. Nova; Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; February 25, 1825; Seven-feet Equatorial. Position = $59^\circ\ 3'\ np$ | 5 Obs. | Diff. = $1^\circ\ 25'$ } Difficult. Distance = $30''.060$ | 5 Obs. | Diff. = $1''.034$ } Night very hazy; Thermometer stands at $28^\circ$; no dew on the object-glass; but the polar axis is covered with hoar frost. Passy; March 2, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $58^\circ\ 34'\ np$ | 5 Obs. | Diff. = $1^\circ\ 44'$ } Very difficult. Distance = $30''.405$ | 5 Obs. | Diff. = $1''.274$ } Passy; March 21, 1825; Portable Transit. Observed R. A. of the larger star = $8^h\ 55' 7''.10$. Mean Result. Position $58^\circ\ 48'\ np$; Distance $30''.232$; Epoch 1825.15. No. DLXXXIX. R. A. $8^h\ 57^m$; Decl. $3^\circ\ 31'$ N. Struve, 324; Hist. Cæl. 258. Double; equal; each $9\frac{1}{2}$ magnitude, and bear but little illumination. Blackman-street; March 12, 1824; Five-feet Equatorial. Position = $2^\circ\ 15'\ s f$ or $n p$ | 5 Obs. | Diff. = $3^\circ\ 5'$ Distance = $12''.115$ | 5 Obs. | Diff. = $6''.853$ } Difficult. Night very favourable. Blackman-street; April 2, 1824; Five-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $2^\circ\ 55'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 35'$ Distance = $12''.165$ | 5 Obs. | Diff. = $6''.632$ } Very difficult. Mean Result. Position $2^\circ\ 35'\ s f$ or $n p$; Distance $12''.140$; Epoch 1824.22. No. DXC. R. A. $8^h\ 58^m$; Decl. $53^\circ\ 6'$ N. Struve, 325; Double; 9th and 11th magnitudes; small, blue. Passy; February 6, 1825; Seven-feet Equatorial. Position = $55^\circ\ 44'\ s f$ | 6 Obs. | Diff. = $4^\circ\ 27'$ Distance = $5''.662$ | 5 Obs. | Diff. = $6''.481$ } Extremely difficult. Passy; February 9, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $57^\circ\ 16'\ s f$ | 5 Obs. | Diff. = $2^\circ\ 13'$ Distance = $5''.364$ | 5 Obs. | Diff. = $6''.529$ } Very difficult. Night very favourable. Mean Result. Position $56^\circ\ 31'\ s f$ (11 Obs.); Distance $5''.513$ (10 Obs); Epoch 1825.10. Mr. South's observations of the apparent distances No. DXCI. R. A. 9h 0m; Decl. 16° 0' N. Nova; Double; 9th and 12th magnitudes. Passy; February 19, 1825; Seven-feet Equatorial. Position = 29° 51' nf | 7 Obs. | Diff. = 4° 8' Distance = 7".598 | 5 Obs. | Diff. = 0".577 } Extremely difficult. Passy; February 24, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = 30° 2' nf | 7 Obs. | Diff. = 1° 35' Distance = 7".670 | 5 Obs. | Diff. = 0".240 } Extremely difficult. Mean Result. Position 29° 56' nf (14 Obs.); Distance 7".634 (10 Obs.); Epoch 1825.14. No. DXCII. R. A. 9h 1m; Decl. 53° 28' N. Struve, 328; Double; equal; each of the 8th magnitude. Blackman-street; March 31, 1824; Five-feet Equatorial. Position = 44° 18' sp or nf | 5 Obs. | Diff. = 1° 31' Blackman-street; April 2, 1824; Five-feet Equatorial. 7½ and 8th magnitudes. Position = 44° 9' nf | 5 Obs. | Diff. = 1° 20' Distance = 20".667 | 5 Obs. | Diff. = 0".947 } Passy; February 6, 1825; Seven-feet Equatorial. Equal; each of the 8th magnitude. Distance = 20".925 | 5 Obs. | Diff. = 1".202 Night tolerably good; a small quantity of dew has fallen upon the object-glass, but the polar axis, which during the former part of the night has been very wet, is now coated with ice. Thermometer 28°. Mean Result. Position 44° 13' nf; Epoch 1824.25; Distance 20".796; Epoch 1824.67. and positions of 458 double and triple stars, &c. No. DXCIII. R. A. $9^h\ 4^m$; Decl. $79^\circ\ 15'$ N. Nova; Double; $8\frac{1}{2}$ and 9th magnitudes; bear a very good illumination; their juxta-polar situation, and their position (so near the perpendicular), render them admirably adapted for parallax observations. Passy; March 18, 1825; Seven-feet Equatorial. Position = $81^\circ\ 14'\ s.f.$ | 5 Obs. | Diff. = $0^\circ\ 32'$ Distance = $29''.384$ | 5 Obs. | Diff. = $0''.144$ Passy; March 21, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $81^\circ\ 14'\ s.f.$ | 5 Obs. | Diff. = $1^\circ\ 24'$ Distance = $29''.256$ | 5 Obs. | Diff. = $0''.481$ Mean Result. Position $81^\circ\ 14'\ s.f.$; Distance $29''.320$; Epoch 1825.21. No. DXCIV. R. A. $9^h\ 7^m$; Decl. $24^\circ\ 24'$ N. Struve, 382; Hist. Cæl. 215; Double; $9\frac{1}{2}$ and 10th magnitudes. Passy; January 2, 1825; Seven-feet Equatorial. Position = $73^\circ\ 38'\ n.f.$ | 8 Obs. | Diff. = $1^\circ\ 55'$ Distance = $7''.302$ | 5 Obs. | Diff. = $0''.481$ Very difficult. Passy; February 3, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $73^\circ\ 4'\ n.f.$ | 5 Obs. | Diff. = $1^\circ\ 35'$. Very difficult. Night is become cloudy; no more observations can be made. Passy; February 5, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Distance = $6''.912$ | 5 Obs. | Diff. = $0''.456$. Very difficult. Mean Result. Position $73^\circ\ 25'\ n.f.$ (13 Obs.; Epoch 1825.04; Distance $7''.107$ (10 Obs.); Epoch 1825.06. Mr. South's observations of the apparent distances No. DXCV. R. A. 9° 10′; Decl. 19° 35′ S. Nova; Double; 8½ and 10th magnitudes. Passy; February 19, 1825; Seven-feet Equatorial. Position = 10° 7′ np | 5 Obs. | Diff. = 1° 27′ Distance = 1′ 1″.169 | 5 Obs. | Diff. = 0″.937 Very difficult. The small star bears but very little illumination. Passy; February 24, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 9° 57′ np | 5 Obs. | Diff. = 0° 32′ Distance = 1′ 1″.126 | 5 Obs. | Diff. = 1″.491 Extremely difficult. Passy; March 21, 1825; Portable Transit. Observed R. A. of the larger star = 9° 10′ 25″.98. Mean Result. Position 10° 2′ np; Distance 1′ 1″.147; Epoch 1825.14. No. DXCVI. R. A. 9° 10′; Decl. 50° 18′ N. 39 Lyncis; STRUVE, 335. Double; 8th and 10th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = 5° 1′ np | 5 Obs. | Diff. = 4° 22′ Distance = 5″.729 | 5 Obs. | Diff. = 0″.865 Very difficult. Position = 49° 33′ np | 5 Obs. | Diff. = 3° 30′ Position = 49° 2′ np | 5 Obs. | Diff. = 2° 45′ Passy; January 17, 1825; Seven-feet Equatorial. 8th and 10th or 11th magnitudes. Position = 47° 48′ np | 6 Obs. | Diff. = 6° 12′ Distance = 6″.400 | 5 Obs. | Diff. = 0″.721 Extremely difficult. Passy; February 24, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 50° 34′ np | 15 Obs. | Diff. = 2° 44′ Distance = 6″.049 | 5 Obs. | Diff. = 0″.601 Satisfactory. Stars admirably defined, and are remarkably steady; the small one is blue. The observations were gotten with the greatest facility. Mean Result. Position 49° 40′ np (36 Obs.) ; Distance 6″.059 (15 Obs.); Epoch 1825.06. No. DXCVII. R. A. 9ʰ 14ᵐ; Decl. 4° 17′ N. Struve, 338; Hist. Cæl. 324; Double; 8th and 9th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = 40° 31′ np | 5 Obs. | Diff. = 2° 34′ } Distance = 22″.195 | 5 Obs. | Diff. = 0″.312 } Passy; January 6, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 40° 20′ np | 5 Obs. | Diff. 2° 15′ } Distance = 22″.143 | 5 Obs. | Diff. 0″.408 } Mean Result. Position 40° 25′ np; Distance 22″.169; Epoch 1825.01. No. DXCVIII. R. A. 9ʰ 17′; Decl. 46° 26′ N. Struve, 339; IV. 55; Double; 6th and 8½ magnitudes; small, blue. Blackman-street; April 12, 1824; Five-feet Equatorial. Position = 71° 18′ sf | 5 Obs. | Diff. 0° 12′ } South. Distance = 1′ 26″.797 | 5 Obs. | Diff. 0″.727 } Position = 71° 17′ sf | 5 Obs. | Diff. 0° 53′ } Mr. Richardson. Distance = 1′ 27″.075 | 5 Obs. | Diff. 0″.821 } Passy; January 6, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = 71° 59′ sf | 5 Obs. | Diff. = 0° 56′ } Distance = 1′ 26″.119 | 5 Obs. | Diff. = 0″.384 } Passy; February 20, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Distance = 1′ 26″.605 | 5 Obs. | Diff. 0″.673 } Mean Result. Position 71° 31′ sf (15 Obs.); Epoch 1824.64; Distance 1′ 26″.649 (20 Obs.); Epoch 1824.81. MDCCCXXVI. Mr. South's observations of the apparent distances No. DXCIX. R.A. 9h 18m; Decl. 7° 1' N. Struve, 341; Hist. Cæl. 273. Double; equal; each of the 10th magnitude. Passy; January 17, 1825; Seven-feet Equatorial. Distance = 3''.780 | 5 Obs. | Diff. = 0''.937. Excessively difficult. Passy; February 5, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = 58° 55' np | 5 Obs. | Diff. = 3° 3' } Extremely difficult. Distance = 3''.450 | 5 Obs. | Diff. = 0''.697 } Passy; March 2, 1285; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 56° 29' np | 5 Obs. | Diff. = 2° 42' } Very difficult. Distance = 3''.251 | 5 Obs. | Diff. = 0''.336 } Passy; March 26, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = 57° 38' np or sf | 5 Obs. | Diff. = 4° 42' } Extremely difficult. Distance = 3''.572 | 5 Obs. | Diff. = 0''.601 } Mean Result. Position 57° 41' np or sf (15 Obs.); Distance 3''.513 (20 Obs.); Epoch 1825.13. No. DC. R.A. 9h 19m; Decl. 9° 50' N. ω Leonis; Struve, 342; I. 26. Double; large, white; small, pale blue. Royal Observatory, Paris; March 15, 1825; Eleven-feet Achromatic by Lerebours, having an object-glass of 8.4 English inches clear aperture. With a power of 420 the small star is separated half a diameter of the large star; with 560 three-fourths of a diameter; with each power the stars are admirably defined, and as round as possible: had we any micrometrical apparatus, measures of position and distance might be gotten with the greatest facility. Mons. Bouvard present. Night favourable. Whether the Seven-feet Equatorial will enable me to measure this close double star I do not know; the highest power that can be applied to its present micrometer is 273, which is certainly inadequate to show the star double.* * By a letter from Mr. Herschel, dated May 14, 1825, I find that Mr. Struve has measured this star with his telescope of 9 inches aperture, and 14 feet focal length, made by Fraunhofer. and positions of 458 double and triple stars, &c. No. DCI. R. A. 9h 21m; Decl. 73° 52' N. STRUVE, 345; Double; equal; each of the 8th magnitude. Blackman-street; April 12, 1824; Five-feet Equatorial. Position = 44° 37' np or sf | 5 Obs. | Diff. = 2° 7' } Distance = 5'.144 | 5 Obs. | Diff. = 0''.727 } { SOUTH. Position = 42° 56' np or sf | 5 Obs. | Diff. = 1° 8' } Distance = 4''.822 | 5 Obs. | Diff. = 1''.136 } { Mr. RICHARDSON. Passy; February 20, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 45° 35' sf | 5 Obs. | Diff. = 1° 25' } Distance = 5''.003 | 5 Obs. | Diff. = 0''.456 } { . Passy; March 18, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 45° 38' sf | 5 Obs. | Diff. = 2° 15' } Distance = 5''.393 | 5 Obs. | Diff. = 0''.456 } { . Mean Result. Position 44° 41' sf (20 Obs.); Distance 5''.090 (20 Obs.); Epoch 1824.87. No. DCII. R. A. 9h 23m; Decl. 2° 16' N. STRUVE, 347; Double; 9th and 9½ magnitudes, and bear a very tolerable illumination; the small star is blue. Passy; February 9, 1825; Seven-feet Equatorial. Position = 74° 51' sf | 5 Obs. | Diff. = 1° 46' } Distance = 3''.584 | 5 Obs. | Diff. = 0''.505 } { . Night remarkably fine. Passy; February 17, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 73° 41' sf | 5 Obs. | Diff. = 3° 9' } Distance = 3''.948 | 5 Obs. | Diff. = 0''.553 } { . Mean Result. Position 74° 16' sf; Distance 3''.766; Epoch 1825.11. Mr. South's observations of the apparent distances No. DCIII. R. A. $9^h\ 24^m$; Decl. $40^\circ\ 46'$ N. Struve, 349; Hist. Cael. 215; Triple; A 7th, B $8\frac{1}{2}$, and C of the 9th magnitudes. Measures of A B. Blackman-street; March 31, 1824; Five-feet Equatorial. | Position = $56^\circ\ 43'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 32'$ | | Distance = $24''.656$ | 5 Obs. | Diff. = $1''.010$ | Blackman-street; April 2, 1824; Five-feet Equatorial. 7th and $8\frac{1}{2}$ magnitudes. | Position = $58^\circ\ 5'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 42'$ | | Distance = $24''.507$ | 5 Obs. | Diff. = $0''.600$ | The small star is decidedly blue. Passy; February 20, 1825; Seven-feet Equatorial. 7th and $8\frac{1}{2}$ magnitudes. | Position = $56^\circ\ 33'\ s f$ | 5 Obs. | Diff. = $0^\circ\ 38'$ | Measures of A C. Blackman-street; March 31, 1824; Five-feet Equatorial. 7th and 9th magnitudes. | Position = $55^\circ\ 40'\ n p$ | 3 Obs. | Diff. = $0^\circ\ 10'$ | | Distance = $1'58''.364$ | 3 Obs. | Diff. = $1''.832$ | Difficult. The star C is very indistinct. Blackman-street; April 2, 1824; Five-feet Equatorial. 7th and 9th magnitudes. | Position = $55^\circ\ 10'\ n p$ | 3 Obs. | Diff. = $0^\circ\ 5'$ | | Distance = $1'58''.853$ | 3 Obs. | Diff. = $1''.010$ | Mean Result. of A B. Position $57^\circ\ 7'\ s f$ (15 Obs.); Epoch 1824.54; Distance $24''.581$ (10 Obs.); Epoch 1824.25. of A C. Position $55^\circ\ 25'\ n p$ (6 Obs.); Distance $1'58''.608$ (6 Obs.); Epoch 1824.25. and positions of 458 double and triple stars, &c. No. DCIV. R. A. 9h 27m; Decl. 18° 48' S. Nova; Double; 7th and 11th magnitudes. Passy; February 21, 1825; Seven-feet Equatorial. Position = 1° 0' sf | 5 Obs. | Diff. = 0° 50' } Excessively difficult. Distance = 51".756 | 5 Obs. | Diff. = 1".322 } The small star is extremely obscure, and the measures of distance are perhaps a little questionable. Passy; February 21, 1825; Portable Transit. Observed R. A. of the larger star = 9h 27' 28".28. Passy; March 24, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position o° o'; following | 5 Obs. | Diff. = 1° 3' } Excessively difficult. Distance = 51".924 | 5 Obs. | Diff. = 1".010 } Before the mean angle was known, the position wire was placed at Zero, and the large star being bisected by it, I could not satisfy myself whether to assign the small one to the north or south quadrants. The measures, particularly of distance, may be liable to a slight inaccuracy, for the small star will scarcely bear any illumination. Night fine. Mean Result. Position o° 30' sf; Distance 51".840; Epoch 1825.17. No. DCV. R. A. 9h 45m; Decl. 5° 48' N. 9 Sextantis; Struve, 352; Hist. Cæl. 327. Double; 7th and 9th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = 22° 38' np | 5 Obs. | Diff. = 0° 18' } Steady. Distance = 51".034 | 5 Obs. | Diff. = 0".649 } Passy; January 6, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = 22° 48' np | 5 Obs. | Diff. = 1° 33' } Good observations. Distance = 51".010 | 5 Obs. | Diff. = 1".058 } The past has been a night such as rarely, very rarely occurs; from five o'clock in the afternoon till now, (four o'clock in the morning,) the stars have been unusually tranquil, and most exquisitely defined. At the commencement of the observations the Thermometer in the observatory stood at 31°, and it has gradually fallen to 23°. The deposition of moisture on the interior surface of the object-glass, and its Mr. South's observations of the apparent distances No. DCV. continued. crystallisation on the exterior surface, have been so considerable, although an attached deal tube projects twelve inches beyond it, that I have been obliged to remove it very frequently; but no trouble is too great to obtain measures, under circumstances so peculiarly favourable. Twenty stars have been observed, amongst them several of the most difficult, and some which I have never before seen double. Now however the dew is not confined to the parts of the telescope in the neighbourhood of the object-glass, but has attacked the wires of the micrometer; they have a serrated appearance; and I suspect begin to "fiddle." Prudence advises me to relinquish observing, lest by persevering they should become broken. Many nights since my abode here, the dew has been far more copious, than I ever observed it to be in England; frequently the water has dripped off the instrument for several successive hours, but I never had any reason to suspect the slightest precipitation of moisture on the micrometer wires. The polar axis and object-end of the telescope, which in the earlier parts of the night were covered with hoar frost, are now coated with ice. Mean Result. Position $22^\circ 43' np$ (10 Obs.); Distance $51''.022$ (10 Obs.); Epoch 1825.01. No. DCVI. R.A. $9^h 47^m$; Decl. $20^\circ 37'$ N. Struve, 353; Hist. Cæl. 212. Double; 8th and 10th magnitudes; small, blue. Passy; January 2, 1825; Seven-feet Equatorial. Position = $85^\circ 17' sf$ | 5 Obs. | Diff. = $1^\circ 8'$ } Difficult. Distance = $29''.725$ | 5 Obs. | Diff. = $0''.312$ } Passy; February 5, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $84^\circ 6' sf$ | 5 Obs. | Diff. = $1''.19'$ } Difficult. Distance = $30''.417$ | 5 Obs. | Diff. = $0''.529$ } Night very fine. Snow on the ground five or six inches deep. Thermometer in the observatory stands at $27^\circ.5$. No dew on the object-glass.* Mean Result. Position $84^\circ 41' sf$; Distance $30''.071$; Epoch 1825.04. * To obviate the annoyance occasioned by the dew, wadding, such as is here employed in the manufacture of Ladies' pelisses, was on February 1st placed to a thickness of three-quarters of an inch, around the tube to which the micrometer is attached, to that of wood applied to the object-end, and to all the telescope tube projecting beyond the declination circle of the instrument: it has to a very considerable extent answered the purpose. Passy, October 22, 1825. and positions of 458 double and triple stars, &c. No. DCVII. R.A. 9h 58m; Decl. 18° 26' S. Struve, 356; Hist. Cæl. 283. Double; equal; each 9½ or 10th magnitudes; bluish, and scarcely bear any illumination. Passy; February 9, 1825; Seven-feet Equatorial. Position = 55° 48' np or sf | 5 Obs. | Diff. = 2° 31' } Extremely difficult. Distance = 11°.447 | 5 Obs. | Diff. = 0°.553 Passy; February 24, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = 56° 36' np or sf | 5 Obs. | Diff. = 1° 59' } Extremely difficult. Distance = 11°.257 | 5 Obs. | Diff. = 0°.962 Mean Result. Position 56° 12' np or sf; Distance 11°.352; Epoch 1825.12. No. DCVIII. R.A. 10h 16m; Decl. 9° 39' N. Struve, 363; I. 29. Double; 9th and 10th magnitudes; small, blue. Passy; February 9, 1825; Seven-feet Equatorial. Position = 23° 58' nf | 6 Obs. | Diff. = 3° 50' } Very, or extremely difficult. Distance = 2°.760 | 6 Obs. | Diff. = 0°.889 These stars are admirably defined, and are as steady as possible. Observed when on the meridian. The night is particularly favourable for delicate observations. Passy; March 24, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = 27° 45' nf | 8 Obs. | Diff. = 6° 28' } Excessively difficult. Distance = 5°.734 | 5 Obs. | Diff. = 0°.432 The small star is blue, and scarcely bears any illumination. Passy; March 28, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 25° 13' nf | 5 Obs. | Diff. = 2° 34' } Excessively difficult. Distance = 3°.981 | 5 Obs. | Diff. = 0°.481 Night very fine; but the small star, which is blue, bears only the most feeble illumination. Mr. South's observations of the apparent distances No. DCVIII. continued. Passy; March 29, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $24^\circ 28' nf$ | 5 Obs. | Diff. = $4^\circ 45'$ } Excessively difficult. Distance = $4''.255$ | 5 Obs. | Diff. = $6''.745$ } These observations, particularly of distance, do not accord so well as might be wished; the star however is one which presents considerable difficulty: this circumstance must plead their excuse. By allowing all the measures equal weight, I apprehend we shall not err much from the truth, when we give as the Mean Result. Position $26^\circ 1' nf$ (24 Obs.); Distance $3''.632$ (21 Obs.); Epoch 1825.20. This star offers not the least evidence of change either in position or distance. The angle of 1782 differs only $31'$ from that here assigned; and the distance (2 diameters) for stars of this magnitude may (from centre to centre) amount to about $4''$. (H.) No. DCIX. R. A. $10^h 22^m$; Decl. $22^\circ 58' N$. Struve, 364; Hist. Cæl. 150. Double; 9th and $9\frac{1}{2}$ magnitudes, and bear a very tolerable illumination. Passy; February 9, 1825; Seven-feet Equatorial. Position = $65^\circ 50' sf$ | 5 Obs. | Diff. = $0^\circ 48'$ } Distance = $14''.588$ | 5 Obs. | Diff. = $1''.274$ } Passy; February 28, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $65^\circ 51' sf$ | 5 Obs. | Diff. = $0^\circ 24'$ } Distance = $14''.090$ | 5 Obs. | Diff. = $0''.649$ } Passy; March 10, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $64^\circ 50' sf$ | 5 Obs. | Diff. = $0^\circ 38'$ } Distance = $13''.938$ | 5 Obs. | Diff. = $0''.649$ } Mean Result. Position $65^\circ 30' sf$ (15 Obs.); Distance $14''.205$ (15 Obs.); Epoch 1825.09. and positions of 458 double and triple stars, &c. No. DCX. R. A. 10h 26m; Decl. 16° 54' S. Nova; Double; 10th and 10½ magnitudes. Passy; February 23, 1825; Seven-feet Equatorial. Position = 54° 4' nf | 5 Obs. | Diff. = 1° 9' } Excessively difficult. Distance = 1' 40''.618± | 1 Obs. | Diff. = 1'' 731 } Excessively difficult. The distance is probably little better than a guess. Passy; March 24, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = 54° 9' nf | 5 Obs. | Diff. = 0° 55' } Excessively difficult. Distance = 1' 40''.915 | 5 Obs. | Diff. = 1'' 731 } Excessively difficult. An illumination sufficient to render the micrometer wires distinct, obliterates both the stars. Mean Result. Position 54° 6' nf (10 Obs.) ; Distance 1' 40''.865 (6 Obs); Epoch 1825.18. No. DCXI. R. A. 10h 33m; Decl. 13° 49' S. Nova; Double; 10th and 11th magnitudes. Passy; February 24, 1825; Seven-feet Equatorial. Position = 76° 51' sp | 5 Obs. | Diff. = 0° 45' } Excessively difficult. Distance = 58''.967± | 5 Obs. | Diff. = 1''.130 } Excessively difficult. Measures of distance somewhat of a suspicious character. The stars will scarcely bear any illumination. Passy; March 24, 1825; Seven-feet Equatorial. 11th and 12th magnitudes. Position = 75° 40' sp | 5 Obs. | Diff. = 0° 55' } Excessively difficult. Distance = 59''.695 | 5 Obs. | Diff. = 1''.154 } Excessively difficult. When the field of view is but very slightly illuminated, the stars cannot be seen without the greatest attention. Mean Result. Position 76° 15'' sp; Distance 59''.331; Epoch 1825.18. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCXII. R. A. $10^h\ 36^m$; Decl. $31^\circ\ 37'$ N. 42 Leonis minoris; STRUVE, 366; Hist. Cæl. 506; Double; 6th and 8th magnitudes. Passy; March 12, 1825; Seven-feet Equatorial. Position = $82^\circ\ 35'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 14'$ Distance = $3'\ 20''.662$ | 5 Obs. | Diff. = $0''.649$ Observed when $1\frac{1}{4}$ hour east of the meridian. Passy; March 17, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $28^\circ\ 37'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 16'$ Distance = $3'\ 20''.546$ | 5 Obs. | Diff. = $0''.913$ At six o'clock in the evening the thermometer stood at $31^\circ$; it now stands at $24^\circ$. The hoar frost is accumulating rapidly on the polar axis, and on the undefended part of the telescope; but the object-glass, which has not required wiping throughout the night, remains perfectly transparent. Mean Result. Position $82^\circ\ 36'\ sf$; Distance $3'\ 20''.304$; Epoch $1825.20$. No. DCXIII. R. A. $10^h\ 39^m$; Decl. $14^\circ\ 41'$ S. STRUVE, 367; P. X. 159; Double; 8th and 10th magnitudes; small, blue. Passy; February 23, 1825; Seven-feet Equatorial. Position = $78^\circ\ 51'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 52'$ Distance = $31''.399$ | 5 Obs. | Diff. = $0''.962$ Difficult. Passy; March 19, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $79^\circ\ 4'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 5'$ Distance = $31''.904$ | 5 Obs. | Diff. = $0''.721$ Very difficult. Stars of low altitude rather obscure, and are very unsteady. Mean Result. Position $78^\circ\ 57'\ nf$; Distance $31''.651$; Epoch $1825.17$. No. DCXIV. R. A. 10° 39′; Decl. 14° 20′ S. Struve, 368; Hist. Cæl. 331. Triple; A of the 8th, B 8½, and C of the 6th magnitudes. Measures of A B. Blackman-street; April 18, 1824; Five-feet Equatorial. | Position = 72° 21′ sp | 5 Obs. | Diff. = 1° 25′ | | Distance = 6″.986 | 5 Obs. | Diff. = 0″.821 | Passy; March 19, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. | Position = 72° 32′ sp | 5 Obs. | Diff. = 2° 21′ | | Distance = 7″.538 | 5 Obs. | Diff. = 0″.456 | Measures of A C. Blackman-street; April 18, 1824; Five-feet Equatorial. 8th and 6th magnitudes. | Position = 68° 26′ sp | 5 Obs. | Diff. = 0° 42′ | | Distance = 1′ 18″.216 | 5 Obs. | Diff. = 0″.600 | (C being south of A.) Passy; March 19, 1825; Seven-feet Equatorial. 8th and 7th magnitudes. | Position = 68° 59′ sp | 5 Obs. | Diff. = 0° 53′ | | Distance = 1′ 17″.506 | 5 Obs. | Diff. = 1″.010 | (The star C being to the south of A.) Mean Result. of A B. Position 72° 26′ sp; Distance 7″.262; of A C. Position 68° 44′ sp; Distance 1′ 17″.861; Epoch 1824.75. Mr. South's observations of the apparent distances No. DCXV. R. A. $10^h\ 39^m$; Decl. $13^\circ\ 44'$ S. Nova; Double; 10th and 11th magnitudes. Passy; February 24, 1825; Seven-feet Equatorial. Position $=88^\circ\ 39'\ np$ | 5 Obs. | Diff. = $1^\circ\ 14'$ } Extremely difficult. Distance = $1'\ 26''.024$ | 6 Obs. | Diff. = $1''.130$ } Passy; March 24, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position $=88^\circ\ 49'\ np$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Extremely difficult. Distance = $1'\ 26''.143$ | 5 Obs. | Diff. = $0''.625$ } Mean Result. Position $88^\circ\ 44'\ np$ (10 Obs.); Distance $1'\ 26''.078$ (11 Obs.); Epoch 1825.18. No. DCXVI. R. A. $10^h\ 43^m$; Decl. $8^\circ\ 25'$ N. Struve, 369; P. X. 179. Double; 9th and 11th magnitudes. Blackman-street; April 19, 1824; Seven-feet Equatorial. Position $=35^\circ\ 16'\ np$ | 5 Obs. | Diff. = $2^\circ\ 58'$ } Excessively difficult. Distance = $13''.142$ | 5 Obs. | Diff. = $0''.937$ } The night is very bad; I have little confidence in the accuracy of the observations. Passy; March 26, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $=35^\circ\ 31'\ np$ | 5 Obs. | Diff. = $2^\circ\ 18'$ } Extremely difficult. Distance = $12''.484$ | 5 Obs. | Diff. = $0''.432$ } Passy; March 28, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Distance = $11''.907$ | 5 Obs. | Diff. = $1''.202$. Excessively difficult. Passy; March 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $=35^\circ\ 17'\ np$ | 5 Obs. | Diff. = $1^\circ\ 29'$ } Extremely difficult. Distance = $12''.508$ | 5 Obs. | Diff. = $0''.481$ } The small star is blue, and bears but the slightest illumination. Mean Result. Position $35^\circ\ 21'\ np$ (15 Obs.); Epoch 1824.92; Distance $12''.510$ (20 Obs.); Epoch 1825.00. and positions of 458 double and triple stars, &c. No. DCXVII. R. A. $10^h\ 45^m$; Decl. $1^\circ\ 17'$ S. Struve, 370; Hist. Cæl. 227. Double; 6th and 10th magnitudes; small, decidedly blue, and bears but a feeble illumination. Blackman-street; March 12, 1824; Five-feet Equatorial. Position = $86^\circ\ 57'\ s^f$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Difficult. Distance = $35''.113$ | 5 Obs. | Diff. = $0''.474$ } Blackman-street; April 2, 1824; Five-feet Equatorial. 6th and 10th magnitudes. Position = $88^\circ\ 38'\ s^f$ | 5 Obs. | Diff. = $2^\circ\ 25'$ } Very difficult. Distance = $35''.333$ | 5 Obs. | Diff. = $0''.632$ } Small star blue, and bears a very indifferent illumination of the micrometer wires. Mean Result. Position $87^\circ\ 47'\ s^f$; Distance $35''.223$; Epoch 1824.22. No. DCXVIII. R. A. $10^h\ 47^m$; Decl. $20^\circ\ 9'$ S. Nova; Double; 10th and $10\frac{1}{2}$ magnitudes; bear but little illumination. Passy; March 26, 1825; Seven-feet Equatorial. Position = $54^\circ\ 13'\ s^p$ | 5 Obs. | Diff. = $0^\circ\ 46'$ } Extremely difficult. Distance = $1'18''.061$ | 5 Obs. | Diff. = $1''.875$ } Passy; March 28, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $54^\circ\ 21'\ s^p$ | 5 Obs. | Diff. = $1^\circ\ 40'$ } Excessively difficult. Distance = $1'19''.254$ | 5 Obs. | Diff. = $2''.284$ } Both stars very indistinct. Passy; March 29, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Distance = $1'19''.989$ | 5 Obs. | Diff. = $1''.923$. Excessively difficult. On the admission of the smallest quantity of light, the stars become scarcely visible. Mean Result. Position $54^\circ\ 16'\ s^p$ (10 Obs.) ; Distance $1'19''.101$ (15 Obs.); Epoch 1825.23. Mr. South's observations of the apparent distances No. DCXIX. R. A. $10^h 57^m$; Decl. $8^\circ 0' N.$ Struve, 375; II. 78. Double; 8th and 12th magnitudes. Passy; March 29, 1825; Seven-feet Equatorial. Position = $72^\circ 38' sf$ | 5 Obs. | Diff. = $4^\circ 8'$ } Excessively difficult. Distance = $8''.762$ | 5 Obs. | Diff. = $0''.673$ The small star is of a light blue colour, and cannot be seen except when the night is extremely favourable. Passy; April 27, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. Position = $75^\circ 11' sf$ | 5 Obs. | Diff. = $1^\circ 38'$ } Excessively difficult. Distance = $8''.513$ | 5 Obs. | Diff. = $0''.408$ The small star under the most feeble illumination is visible only with the greatest attention; the measures, I fear, merit but little confidence. Passy; May 7, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $74^\circ 14' sf$ | 5 Obs. | Diff. = $1^\circ 53'$. Excessively difficult. Mean Result. Position $74^\circ 1' sf$; (15 Obs.); Epoch 1825.30; Distance $8''.637$ (10 Obs.); Epoch 1825.28. Sir W. Herschel measured this star in 1783 and in 1802, the respective positions being $75^\circ 21' sf$ and $71^\circ 42' sf$. The mean ($73^\circ 32'$) differs only $0^\circ 29'$ from that here stated, so that this star may be presumed liable to no change in position. (H.) and positions of 458 double and triple stars, &c. No. DCXX. R. A. 10h 58m; Decl. 12° 28' S. Nova; Double; 8th and 10th magnitudes. Passy; April 19, 1825; Seven-feet Equatorial. Position = 73° 6' nf | 5 Obs. | Diff. = 0° 30'. Extremely difficult. The night now so unfavourable, that observations of distance are impracticable. Passy; April 27, 1825; Seven-feet Equatorial. 8th and 10th, or 11th magnitudes. Position = 73° 31' nf | 5 Obs. | Diff. = 1° 28' } Extremely difficult. Distance = 32".774 | 5 Obs. | Diff. = 0".553 Passy; April 29, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 73° 19' nf | 5 Obs. | Diff. = 2° 3' } Excessively difficult. Distance = 32".623 | 5 Obs. | Diff. = 0".408 Mean Result. Position 73° 19' nf (15 Obs.) ; Distance 32".698 (10 Obs.); Epoch 1825.31. No. DCXXI. R. A. 11h 0m; Decl. 66° 59' N. STRUVE, 377; 1790.386. Triple; A 9th, B 9½, and C of the 8th magnitudes. Measures of A.B. Passy; February 24, 1825; Seven-feet Equatorial. Position = 64° 35' nf | 5 Obs. | Diff. = 1° 25' } Rather difficult. Distance = 43".327 | 5 Obs. | Diff. = 0".336 Thermometer stands at 30°; no dew on the object-glass, but the polar axis is very wet. Passy; February 25, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 64° 26' nf | 5 Obs. | Diff. = 0° 28' } Difficult. Distance = 43".534 | 5 Obs. | Diff. = 0".456 Mr. South's observations of the apparent distances No. D CXXI. continued. Measures of A C. Passy; February 25, 1825; Seven-feet Equatorial. 9th and 8th magnitudes. Position = $26^\circ 40' n p$ | 3 Obs. | Diff. = $0^\circ 15'$ } Cloudy. Distance = $3' 21''.979$ | 2 Obs. | Diff. = $0''.264$ } Night is become bad; no more observations can be gotten. Passy; March 21, 1825; Seven-feet Equatorial. 9th and 8th magnitudes. Position = $26^\circ 31' n p$ | 5 Obs. | Diff. = $0^\circ 22'$ } Distance = $3' 23''.270$ | 5 Obs. | Diff. = $1''.563$ } The star C being to the north of A. Passy; March 26, 1825; Seven-feet Equatorial. 9th and 8th magnitudes. Distance = $3' 23''.620$ | 5 Obs. | Diff. = $1''.298$. . . . Mean Result. of A B. Position $64^\circ 30' n f$; Distance $43''.431$; Epoch 1825.14. of A C. Position $26^\circ 34' n p$ (8 Obs.); Epoch 1825.18; Distance $3' 23''.201$ (12 Obs.); Epoch 1825.19. No. D CXXII. R. A. $11^h 3^m$; Decl. $74^\circ 26' N$. Struve, 378; 1790.389. Double; 9th and $9\frac{1}{2}$ magnitudes, and bear but a very feeble illumination. Blackman-street; April 11, 1824; Five-feet Equatorial. Position = $26^\circ 15' n p$ | 5 Obs. | Diff. = $2^\circ 42'$ } Difficult. Distance = $12''.551$ | 5 Obs. | Diff. = $1''.168$ } Blackman-street; April 12, 1824; Five-feet Equatorial. 9\(\frac{1}{2}\) and $9\frac{1}{2}$ magnitudes. Position = $26^\circ 17' n p$ | 5 Obs. | Diff. = $1^\circ 12'$ } Difficult. Distance = $12''.408$ | 5 Obs. | Diff. = $1''.358$ } Mean Result. Position $26^\circ 16' n p$; Distance $12''.479$; Epoch 1824.28. and positions of 458 double and triple stars, &c. No. DCXXIII. R. A. 11h 6m; Decl. 28° 33' N. Struve, 379; Hist. Cæl. 61; Double; 9½ and 10th magnitudes. Blackman-street; March 13, 1824; Five-feet Equatorial. Position = 5° 13' sf | 5 Obs. | Diff. = 3° 16' } Very difficult. Distance = 4''.024 | 5 Obs. | Diff. = 8''.348 Blackman-street; April 2, 1824; Five-feet Equatorial. 8th and 9th magnitudes. Position = 5° 14' sf | 5 Obs. | Diff. = 2° 10' } Difficult. Distance = 4''.182 | 5 Obs. | Diff. = 0''.649 Night very favourable. Mean Result. Position 5° 13' nf; Distance 4''.103; Epoch 1824.22. No. DCXXIV. R. A. 11h 10m; Decl. 0° 40' S. Struve, 383; Hist. Cæl. 498. Double; 8th and 8½ magnitudes. Blackman-street; April 11, 1824; Five-feet Equatorial. Position = 18° 0' sp | 5 Obs. | Diff. = 2° 3' } Distance = 10''.011 | 5 Obs. | Diff. = 0''.442 Blackman-street; April 12, 1824; Five-feet Equatorial. 8th and 8½ magnitudes. Position = 18° 3' sp | 5 Obs. | Diff. = 1° 13' } Distance = 10''.280 | 5 Obs. | Diff. = 0''.379 Mean Result. Position 18° 1' sp; Distance 10''.145; Epoch 1824.27. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCXXV. R. A. $11^h\ 10^m$; Decl. $15^\circ\ 16'$ N. Struve, 382; Hist. Cæl. 223. Double; 8th and 10th magnitudes. Blackman-street; April 11, 1824; Five-feet Equatorial. Position = $79^\circ\ 33'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 37'$ } Difficult. Distance = $5''.211$ | 5 Obs. | Diff. = $0''.569$ } Blackman-street; April 12, 1824; Five-feet Equatorial. 7th and $8\frac{1}{2}$ magnitudes. Position = $78^\circ\ 20'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 33'$ } Distance = $4''.362$ | 5 Obs. | Diff. = $0''.474$ } Passy; March 26, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $81^\circ\ 7'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Distance = $5''.207$ | 5 Obs. | Diff. = $0''.625$ } The distance observed April 12, 1824, does not well accord with either of the sets; at the same time nothing appears in the rough journal to invalidate the accuracy of the former; on the contrary, it would seem that the stars were brighter on that night, than on either of the other nights of observation: the discordant series therefore cannot be rejected with propriety. Mean Result. Position $79^\circ\ 40'\ nf$ (15 Obs.); Distance $4''.927$ (15 Obs.); Epoch 1824.60. No. DCXXVI. R. A. $11^h\ 19^m$; Decl. $40^\circ\ 20'$ N. 57 Ursæ Majoris; Struve, 388; III. 86. Double; 8th and 10th magnitudes; small, blue, and bears a very good illumination. Passy; March 29, 1825; Seven-feet Equatorial. Position = $80^\circ\ 5'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 51'$ } Distance = $6''.342$ | 5 Obs. | Diff. = $0''.216$ } No. D CXXVI. continued. Passy; April 5, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $79^\circ 26' nf$ | 5 Obs. | Diff. = $2^\circ 0'$ | Distance = $6''.246$ | 5 Obs. | Diff. = $0''.721$ | Mean Result. Position $79^\circ 45' nf$; Distance $6''.294$; Epoch 1825.25. In 1783 the position of this star is stated by Sir W. Herschel to have been $75^\circ 36' nf$. It will remain to be decided by future measures whether the difference, $4^\circ 9'$, between this and the present angle, arise from a real very slow change in the stars themselves, or from error of observation. (H.) No. D CXXVII. R. A. $11^h 21^m$; Decl. $16^\circ 26' S.$ Nova; Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; March 18, 1825; Seven feet Equatorial. Position = $60^\circ 12' np$ | 5 Obs. | Diff. = $0^\circ 17'$ | Distance = $29''.254$ | 5 Obs. | Diff. = $0''.481$ | Passy; March 26, 1825; Seven-feet Equatorial. Equal; each of the 8th magnitude. Position = $61^\circ 11' sf$ or $np$ | 5 Obs. | Diff. = $0^\circ 54'$ | Distance = $28''.617$ | 5 Obs. | Diff. = $0''.625$ | Passy; March 28, 1825; Seven-feet Equatorial. Equal; each of the 9th magnitude. Position = $60^\circ 52' np$ or $sf$ | 4 Obs. | Diff. = $0^\circ 12'$. Night is become cloudy; no more observations can be procured. Passy; March 29, 1825; Seven-feet Equatorial. Equal; each of the 8th magnitude. Position = $60^\circ 46' np$ or $sf$ | 5 Obs. | Diff. = $1^\circ 35'$ | Distance = $29''.007$ | 5 Obs. | Diff. = $1''.010$ | Mean Result. Position $60^\circ 45' np$ or $sf$ (19 Obs.); Epoch 1825.25; Distance $28''.959$ (15 Obs.); Epoch 1825.24. Mr. South's observations of the apparent distances No. DCXXVIII. R. A. $11^h\ 21^m$; Decl. $60^\circ\ 40' N.$ Struve, 389; 1790; 381. Double; 8th and $8\frac{1}{2}$ magnitudes. Blackman-street; April 11, 1824; Five-feet Equatorial. Position = $0^\circ\ 26'\ s.f.\ | 5$ Obs. | Diff. = $2^\circ\ 13'$. Blackman-street; April 12, 1824; Five-feet Equatorial. 8th and 9th magnitudes. Position = $0^\circ\ 18'\ s.f.\ | 5$ Obs. | Diff. = $0^\circ\ 26'$ Distance = $13''.053\ | 5$ Obs. | Diff. = $0''.649$ Blackman-street; April 17, 1824; Five feet Equatorial. 8th and 9th magnitudes. Distance = $13''.028\ | 5$ Obs. | Diff. = $0''.336$. Mean Result. Position $0^\circ\ 22'\ s.f.;$ Distance $13''.040;$ Epoch $1824.28.$ No. DCXXIX. R. A. $11^h\ 28^m$; Decl. $22^\circ\ 25' N.$ Nova; Double; 10th and 11th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $5^\circ\ 25''\ n.p.\ \pm\ | 5$ Obs. | Diff. = $1^\circ\ 28'$ Distance = $44''.159\ \pm\ | 5$ Obs. | Diff. = $3''.775$ Excessively difficult. Unless these should be corroborated by subsequent observations, I consider them entitled to very little confidence; neither star will bear any illumination. Passy; May 9, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $5^\circ\ 37''\ n.p.\ | 5$ Obs. | Diff. = $0^\circ\ 32'$ Distance = $44''.919\ | 5$ Obs. | Diff. = $0''.841$ Excessively difficult. Under the most feeble illumination, both stars become invisible. Passy; May 10, 1825; Seven-feet Equatorial. 10th and 12th magnitudes. Position = $5^\circ\ 41''\ n.p.\ | 5$ Obs. | Diff. = $1^\circ\ 6'$ Distance = $44''.044\ | 5$ Obs. | Diff. = $1''.370$ Excessively difficult. Mean Result. Position $5^\circ\ 34''\ n.p.\ (15$ Obs.); Distance $44''.374\ (15$ Obs.); Epoch $1825.35.$ and positions of 458 double and triple stars, &c. No. DCXXX. R. A. 11\textsuperscript{h} 30\textsuperscript{m}; Decl. 27\textsuperscript{o} 57\textsuperscript{'} N. Struve, 392; Hist. Cæl. 64; Double; 11th and 12th magnitudes. Blackman-street; April 19, 1824; Seven-feet Equatorial. Position = $3^\circ 56'\ n.f$ | 5 Obs. | Diff. = $1^\circ 38'$ } Extremely difficult. Distance = $5''.684$ | 5 Obs. | Diff. = $0''.505$ Under a very slight illumination of the micrometer wires, these stars become invisible. Passy; March 26, 1825; Seven-feet Equatorial. 11th and 12th magnitudes. Position = $4^\circ 3'\ n.f$ | 5 Obs. | Diff. = $3^\circ 20'$ } Extremely difficult. Distance = $5''.501$ | 5 Obs. | Diff. = $0''.649$ The small star is light blue, and neither of them will bear scarcely any illumination. Mean Result. Position $4^\circ 0'\ n.f$; Distance $5''.592$; Epoch 1824.76. No. DCXXXI. R. A. 11\textsuperscript{h} 39\textsuperscript{m}; Decl. 68\textsuperscript{o} 19\textsuperscript{'} N. Struve, 395; Hist. Cæl. 385; Double; 8th and 9th magnitudes. Blackman-street; April 14, 1824; Five-feet Equatorial. Position = $89^\circ 4'\ s.f$ | 5 Obs. | Diff. = $1^\circ 35'$ } Distance = $11''.713$ | 5 Obs. | Diff. = $0''.758$ Blackman-street; April 17, 1824; Five-feet Equatorial. 8th and 9th magnitudes. Position = $89^\circ 3'\ s.f$ | 5 Obs. | Diff. = $2^\circ 20'$ } Distance = $11''.978$ | 5 Obs. | Diff. = $1''.168$ Mean Result. Position $89^\circ 4'\ s.f$; Distance $11''.845$; Epoch 1824.29. Mr. South's observations of the apparent distances No. D CXXXII. R.A. $11^h 43^m$; Decl. $9^\circ 48'$ N. Struve, 396; IV. 49; Double; $7\frac{1}{2}$ and 8th magnitudes. Blackman-street; April 14, 1824; Five-feet Equatorial. Position = $61^\circ 53' s p$ | 5 Obs. | Diff. = $0^\circ 51'$ Distance = $30''.341$ | 5 Obs. | Diff. = $0''.727$ Blackman-street; April 17, 1824; Five-feet Equatorial. 7th and 9th magnitudes. Position = $61^\circ 35' s p$ | 5 Obs. | Diff. = $0^\circ 48'$ Distance = $30''.189$ | 5 Obs. | Diff. = $0''.885$ Passy; April 7, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Distance = $30''.615$ | 5 Obs. | Diff. = $0''.336$. . . . Observed on the meridian. Mean Result. Position $61^\circ 44' s p$ (10 Obs.); Epoch 1824.29; Distance $30''.382$ (15 Obs.); Epoch 1824.62. In 1783 the position is stated to have been $56^\circ 30' s p$, and the distance $27''.50$. An error of observation to the extent of $5^\circ 14'$ is too much to be supposed in a star of the 4th class, and it is therefore pretty clear that this star is liable to a slow change; whether arising from orbital motion in both, or rectilinear in one of the two, future observations must decide. (H.) and positions of 458 double and triple stars, &c. No. DCXXXIII. R.A. 11\textsuperscript{h} 56\textsuperscript{m}; Decl. 52° 55′ N. Struve, 401; 1790; 376. Double; 8th and 8\(\frac{1}{2}\) magnitudes. Blackman-street; April 14, 1824; Five-feet Equatorial. Position = 4° 26′ sf | 5 Obs. | Diff. = 2° 24′ \\ Distance = 8″.309 | 5 Obs. | Diff. = 0″.411 Blackman-street; April 17, 1824; Five-feet Equatorial. 8\(\frac{1}{2}\) and 9th magnitudes. Position = 4° 25′ sf | 5 Obs. | Diff. = 2° 13′ \\ Distance = 8″.309 | 5 Obs. | Diff. = 0″.695 Mean Result. Position 4° 26′ sf Distance 8″.309; Epoch 1824.29. No. DCXXXIV. R.A. 12\textsuperscript{h} 2\textsuperscript{m}; Decl. 15° 48′ S. Struve, 402; Hist. Cæl. 232. Double; 8th and 10th magnitudes. Blackman-street; April 14, 1824; Five-feet Equatorial. Position = 7° 21′ np | 5 Obs. | Diff. = 3° 0′ \\ Distance = 7″.621 | 5 Obs. | Diff. = 0″.442 Very difficult. Blackman-street; April 17, 1824; Five-feet Equatorial. 8\(\frac{1}{2}\) and 10th magnitudes. Position = 6° 45′ np | 5 Obs. | Diff. = 2° 15′ \\ Distance = 8″.322 | 5 Obs. | Diff. = 0″.758 Difficult. The small star is blue, and bears but a very feeble illumination. Mean Result. Position 7° 3′ np; Distance 7″.971; Epoch 1824.29. Mr. South's observations of the apparent distances No. DCXXXV. R. A. $12^h\ 2^m$; Decl. $1^\circ\ 15'$ S. Nova; Double; 10th and 11th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $6^\circ\ 39'\ n\ p$ | 5 Obs. | Diff. = $2^\circ\ 47'$ } Extremely difficult. Distance = $23''.745$ | 5 Obs. | Diff. = $0''.865$ } Excessively difficult. Measures perhaps a little suspicious, although taken with great care. Stars are tolerably steady, but will scarcely bear the slightest illumination. Passy; May 9, 1825; Seven-feet Equatorial. 10th and 12th magnitudes. Position = $7^\circ\ 30'\ n\ p$ | 5 Obs. | Diff. = $3^\circ\ 13'$ } Excessively difficult. Distance = $23''.601$ | 5 Obs. | Diff. = $1''.202$ } These results were procured under the most favourable circumstances; the stars were on the meridian, and very steady; yet from the extreme faintness of the smaller star, some inaccuracy may be apprehended. Mean Result. Position $7^\circ\ 4'\ n\ p$; Distance $23''.673$; Epoch 1825.34. No. DCXXXVI. R. A. $12^h\ 6^m$; Decl. $10^\circ\ 58'$ N. Nova; Double; $9\frac{1}{2}$ and 10th magnitudes. Passy; March 7, 1825; Seven-feet Equatorial. Position $24^\circ\ 29'\ s\ p$ | 5 Obs. | Diff. = $0^\circ\ 20'$. Very difficult. Stars very steady; but the night so hazy, that satisfactory measures of distance cannot be obtained. Passy; March 26, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $24^\circ\ 54'\ s\ p$ | 5 Obs. | Diff. = $1^\circ\ 57'$ } Very difficult. Distance = $26''.694$ | 5 Obs. | Diff. = $1''.851$ } Extremely difficult. Passy; March 29, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $24^\circ\ 29'\ s\ p$ | 5 Obs. | Diff. = $0^\circ\ 59'$ } Very difficult. Distance = $26''.467$ | 5 Obs. | Diff. = $0''.432$ } Extremely difficult. Neither star bears a good illumination. Mean Result. Position $24^\circ\ 37'\ s\ p$; Epoch 1825.22; Distance $26''.580$; Epoch 1825.23. and positions of 458 double and triple stars, &c. No. DCXXXVII. R. A. 12h 18m; Decl. 18° 58' S. Nova; Double; 10th and 12th magnitudes, and bear but the slightest illumination. Passy; May 5, 1825; Seven-feet Equatorial. Position = 67° 26' sp | 5 Obs. | Diff. = 0° 32' } Extremely difficult. Distance = 1' 2".578 | 5 Obs. | Diff. = 1".202 } Excessively difficult. The measure of distance may perhaps be liable to an error of two or three seconds, from the extreme faintness of the small star. Passy; May 9, 1825; Seven-feet Equatorial. 10th and 12th magnitudes. Position = 66° 34' sp | 5 Obs. | Diff. = 2° 27' } Excessively difficult. Distance = 1' 1".423 | 5 Obs. | Diff. = 1".563 Results probably suspicious; both stars become invisible under an illumination just sufficient to show the situation of the wires. Passy; May 10, 1825; Seven-feet Equatorial. 10th and 12th magnitudes. Position = 66° 41' sp | 5 Obs. | Diff. = 0° 25' } Excessively difficult. Distance = 1' 0".904 | 5 Obs. | Diff. = 0".061 Observations made with great care; but the obscurity of the stars is such, that coincident measures must not be expected. Mean Result. Position 66° 54' sp; Distance 1' 1".635; Epoch 1825.35. No. DCXXXVIII. R. A. 12h 20m; Decl. 26° 54' N. Nova; Double; 6th and 7th magnitudes. Passy; March 26, 1825; Seven-feet Equatorial. Position = 18° 58' sp | 5 Obs. | Diff. = 1° 8' } Tremulous. Distance = 2' 24".501 | 5 Obs. | Diff. = 0".913 Passy; March 29, 1825; Seven-feet Equatorial. Position = 19° 28' sp | 5 Obs. | Diff. = 0° 16' } Unsteady. Distance = 2' 24".372 | 5 Obs. | Diff. = 1".202 Mean Result. Position 19° 13' sp; Distance 2' 24".436; Epoch 1825.23. MDCCCXXVI. No. DCXXXIX. R. A. $12^h\ 29^m$; Decl. $3^\circ\ 23'$ S. Struve, 418; V. 129. Double; 8th and 13th, or 14th magnitudes. Passy; May 7, 1825; Seven-feet Equatorial. Position = $14^\circ\ 57'\ s.f$ | 5 Obs. | Diff. = $1^\circ\ 4'$ } Suspicious. Distance = $49''.618$ | 5 Obs. | Diff. = $2''.212$ } The night is very fine, but the measures are excessively difficult; the small star can only be seen with considerable attention. Passy; May 8, 1825; Seven-feet Equatorial. 8th and 12th, or 14th magnitudes. Position = $16^\circ\ 0'\ s.f$ | 5 Obs. | Diff. = $1^\circ\ 9'$ } Excessively difficult. Distance = $51''.246$ | 5 Obs. | Diff. = $1''.082$ } The small star is so extremely indistinct, that the measures must be considered somewhat dubious. Night favourable. Passy; May 10, 1825; Seven-feet Equatorial. 8th and 12th, or 13th magnitudes. Position = $15^\circ\ 9'\ s.f$ | 5 Obs. | Diff. = $1^\circ\ 14'$ } Excessively difficult. Distance = $50''.801$ | 5 Obs. | Diff. = $0''.601$ } Night fine, but the small star will scarcely bear any illumination. Mean Result. Position $15^\circ\ 22'\ s.f$; Distance $50''.555$; Epoch 1825.36. Sir W. Herschel has no measures of the angle of position of this star. (H.) and positions of 458 double and triple stars, &c. No. DCXL. R. A. $12^h\ 29^m$; Decl. $4^\circ\ 22'$ S. Nova; Double; 10th and 12th magnitudes; neither star bears but the most feeble illumination. Passy; May 5, 1825; Seven-feet Equatorial. Position = $5^\circ\ 32'\ s f$ | 5 Obs. | Diff. = $6^\circ\ 15'$ } Excessively difficult. Distance = $10''.392$ | 5 Obs. | Diff. = $1''.202$ } These results must not be regarded with much confidence; the stars become invisible, under almost the slightest illumination. Passy; May 9, 1825: Seven-feet Equatorial. 11th and 12th magnitudes. Position = $6^\circ\ 9'\ s f$ | 5 Obs. | Diff. = $3^\circ\ 35'$ } Excessively difficult. Distance = $10''.002$ | 5 Obs. | Diff. = $0''.432$ } The distance, in consequence of the indistinctness of each star under illumination must, I fear, be received with distrust. Mean Result. Position $5^\circ\ 50'\ s f$; Distance $10''.197$; Epoch $1825.35$. No. DCXLI. R. A. $12^h\ 36^m$; Decl. $15^\circ\ 20'$ N. Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; April 15, 1825; Seven-feet Equatorial. Position = $56^\circ\ 44'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 39'$ } Unsteady. Distance = $33''.267$ | 5 Obs. | Diff. = $1''.322$ } Passy; April 24, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $56^\circ\ 27'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 42'$ } Steady. Distance = $33''.452$ | 5 Obs. | Diff. = $0''.288$ } Mean Result. Position $56^\circ\ 35'\ s p$; Distance $33''.359$; Epoch $1825.30$ Mr. South's observations of the apparent distances No. DCXLII. R. A. $12^h\ 40^m$; Decl. $14^\circ\ 58'$ N. Nova; Double; $8\frac{1}{2}$ and $11$th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position $= 53^\circ\ 50'\ n f$ | 5 Obs. | Diff. = $2^\circ\ 12'$ } Very difficult. Distance $= 54''.306$ | 5 Obs. | Diff. = $1''.923$ } Extremely difficult. The small star will scarcely bear the slightest illumination. Passy; May 7, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $12$th magnitudes. Position $= 53^\circ\ 51'\ n f$ | 5 Obs. | Diff. = $2^\circ\ 58'$ } Excessively difficult. Distance $= 54''.537$ | 5 Obs. | Diff. = $1''.491$ } Night fine. The small star only seen with great attention. Mean Result. Position $53^\circ\ 50'\ n f$; Distance $54''.421$; Epoch $1825.34$. No. D CXLIII. R. A. $12^h\ 44^m$; Decl. $17^\circ\ 4'$ S. Nova; Double; $8$th and $9$th magnitudes. Passy; March 26, 1825; Seven-feet Equatorial. Position $= 25^\circ\ 26'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 1'$ } On the meridian, but very tremulous. Distance $= 23''.433$ | 5 Obs. | Diff. = $1''.154$ } very tremulous. Passy; March 29, 1825; Seven-feet Equatorial. $8$th and $9$th magnitudes. Position $= 25^\circ\ 0'\ n p$ | 5 Obs. | Diff. = $0^\circ\ 44'$ } Unsteady. Distance $= 23''.910$ | 5 Obs. | Diff. = $0''.721$ } Unsteady. Passy; April 11, 1825; Seven-feet Equatorial. $8$th and $10$th magnitudes; small, blue. Position $= 25^\circ\ 5'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 20'$ } Very difficult. Distance $= 23''.228$ | 5 Obs. | Diff. = $1''.082$ } Extremely difficult. The small star is very obscure, and bears but a very feeble illumination. Passy; April 12, 1825; Seven-feet Equatorial. $8$th and $10$th magnitudes; the small star is very faint. Position $= 24^\circ\ 46'\ n p$ | 5 Obs. | Diff. = $2^\circ\ 11'$ } Extremely difficult. Distance $= 23''.467$ | 5 Obs. | Diff. = $0''.913$ } Excessively difficult. Mean Result. Position $25^\circ\ 4'\ n p$ (20 Obs.); Distance $23''.509$ (20 Obs.); Epoch $1825.26$. and positions of 458 double and triple stars, &c. No. DCXLIV. R. A. 12h 51m; Decl. 15° 18' N. Nova; Double; 9th and 11th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $81° 22' sp$ | 5 Obs. | Diff. = $1° 9'$ } Very difficult. Distance = $27''.208$ | 5 Obs. | Diff. = $2''.164$ } Extremely difficult. Results perhaps a little suspicious; the larger star bears but a feeble, and the smaller scarcely any illumination. Passy; May 7, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $80° 56' sp$ | 5 Obs. | Diff. = $1° 42'$ } Extremely difficult. Distance = $27''.111$ | 5 Obs. | Diff. = $1''.491$ } Excessively difficult. Observed when on the meridian. Night fine. Mean Result. Position $81° 9' sp$; Distance $27''.159$; Epoch 1825.34. No. DCXLV. R. A. 12h 58m; Decl. 1° 35' N. Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; April 12, 1825; Seven-feet Equatorial. Position = $85° o' nf$ | 5 Obs. | Diff. = $o° 58'$ } Very steady and well defined. Distance = $8''.213$ | 5 Obs. | Diff. = $o''.817$ Passy; April 15, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $84° 36' nf$ | 5 Obs. | Diff. = $2° 5'$ } Occasionally well defined, but very unsteady. Distance = $7''.983$ | 5 Obs. | Diff. = $o''.793$ Variable refraction so extremely troublesome, that I am compelled to relinquish observing. Mean Result. Position $84° 48' nf$; Distance $8''.098$; Epoch 1825.28. No. DCXLVI. R. A. $13^h\ 1^m$; Decl. $16^\circ\ 25'$ N. Nova; Double; 9th and 10th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $70^\circ\ 48'\ np$ | 5 Obs. | Diff. = $3^\circ\ 50'$ } Very difficult. Distance = $3''.905$ | 5 Obs. | Diff. = $0''.481$ } Extremely difficult. The smaller star will scarcely bear any illumination. Passy; May 9, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 11th magnitudes. Position = $74^\circ\ 44'\ np$ | 5 Obs. | Diff. = $2^\circ\ 30'$ } Excessively difficult. Distance = $4''.221$ | 5 Obs. | Diff. = $0''.962$ } Observed on the meridian; distances considered a little doubtful. The night is become so unfavourable, that the small star is seen only with great difficulty. Passy; May 10, 1825; Seven-feet Equatorial. 9th and 10th magnitudes Position = $73^\circ\ 38'\ np$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Very difficult. Distance = $4''.145$ | 5 Obs. | Diff. = $0''.408$ } Observed when on the meridian; but the small star does not admit of a good illumination of the wires. Passy; May 14, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $71^\circ\ 54'\ np$ | 5 Obs. | Diff. = $1^\circ\ 50'$. Excessively difficult. The small star only visible by glimpses, and then very indistinctly; the observations by no means satisfactory. Mean Result. Position $72^\circ\ 46'\ np$ (20 Obs.); Epoch 1825.38; Distance $4''.090$ (15 Obs.); Epoch 1825.37. and positions of 458 double and triple stars, &c. No. DCXLVII. R. A. $13^h\ 1^m$; Decl. $1^\circ\ 43'$ S. Nova; Double; 8th and 13th magnitudes. Passy; May 7, 1825; Seven-feet Equatorial. Position $= 56^\circ\ 36'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 15'$ } Excessively difficult. Distance $= 42''.582$ | 5 Obs. | Diff. = $1''.394$ } The night is very fine; but the small star is so obscure, that I fear much reliance must not be placed in the results. Passy; May 14, 1825; Seven-feet Equatorial. Position $= 55^\circ\ 42'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 3'$ } Excessively difficult. Distance $= 43''.676$ | 5 Obs. | Diff. = $1''.130$ } Stars of the 8th and 13th, or 14th magnitudes: the smaller one scarcely bears the least illumination. Observed on the meridian. Night fine. Mean Result. Position $56^\circ\ 9'\ sp$; Distance $43''.129$; Epoch $1825.36$. No. DCXLVIII. R. A. $13^h\ 5^m$; Decl. $19^\circ\ 0'$ N. Nova; Double; 10th and 12th, or 13th magnitudes. If this star be brought into the upper part of the field, a nebula of considerable magnitude will be found in the lower part of it. Passy; May 10, 1825; Seven-feet Equatorial. Position $= 25^\circ\ 55'\ nf$ | 4 Obs. | Diff. = $0^\circ\ 34'$ } Excessively difficult. Distance $= 1'27''.847 \pm$ | 2 Obs. | Diff. = $1''.875$ } These stars are so extremely faint, that measures of accuracy cannot be obtained. Night fine. Passy; May 14, 1825; Seven-feet Equatorial. 10th and 13th magnitudes. Position $= 25^\circ\ 3'\ nf$ | 4 Obs. | Diff. = $1^\circ\ 20'$ } Excessively difficult. Distance $= 1'32''.175 \pm$ | 2 Obs. | Diff. = $2''.284$ } The small star is so extremely indistinct, that the measures are very unsatisfactory; those of distance are to be regarded as mere approximations. Mr. South's observations of the apparent distances No. DCXLVIII. continued. Passy: May 31, 1825; Seven-feet Equatorial. 10th and 14th, or 15th magnitudes. Position = $25^\circ 7' nf$ | 4 Obs. | Diff. = $1^\circ 34'$ | Excessively difficult. Distance = $1' 26''.888 \pm$ | 2 Obs. | Diff. = $0''.649 \pm$ Night fine, but observations very liable to error, in consequence of the extreme faintness of the stars. Mean Result. Position $25^\circ 22' nf$; Distance $1' 28''.970$; Epoch 1825.38. No. DCXLIX. R. A. $13^h 22^m$; Decl. $60^\circ 53' N.$ y 426 (Bode) Ursae Majoris; Struve, 440; VI. 22. Double; 6th and 9th magnitudes. Blackman-street; April 17, 1824; Five-feet Equatorial. Position = $20^\circ 57' sf$ | 5 Obs. | Diff. = $0^\circ 22'$ | Distance = $3' 1''.373$ | 5 Obs. | Diff. = $1''.263$ Blackman-street; April 18, 1824; Five-feet Equatorial. 6th and 9th magnitudes. Position = $21^\circ 6' sf$ | 5 Obs. | Diff. = $0^\circ 41''$ | Distance = $3' 1''.617$ | 5 Obs. | Diff. = $1''.263$ Mean Result. Position $21^\circ 2' sf$; Distance $3' 1''.495$; Epoch 1824.30. Sir W. Herschel has no measures of this star. (H.) and positions of 458 double and triple stars, &c. No. DCL. R. A. $13^h\ 25^m$; Decl. $12^\circ\ 33'$ S. Nova; Double; $8\frac{1}{2}$ and $11$th magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $59^\circ\ 11'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 26'$ } Very difficult. Distance = $45''.852$ | 5 Obs. | Diff. = $0''.240$ } Extremely difficult. The small star becomes invisible under a very slight illumination. Passy; May 10, 1825; Seven-feet Equatorial. 8th and $11$th magnitudes. Position = $59^\circ\ 8'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 33'$ } Very difficult. Distance = $45''.197$ | 5 Obs. | Diff. = $0''.889$ } Very difficult. Observed when on the meridian, but the small star is very faint. Mean Result. Position $59^\circ\ 10'\ sf$; Distance $45''.524$; Epoch $1825.35$. No. DCLI. R. A. $13^h\ 27^m$; Decl. $25^\circ\ 35'$ S. Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $77^\circ\ 2'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 8'$ } Unsteady. Distance = $10''.363$ | 5 Obs. | Diff. = $1''.400$ } Unsteady. Within a few minutes of the meridian, when observed. Passy; May 8, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $77^\circ\ 59'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 21'$ } Tolerably steady. Distance = $10''.337$ | 5 Obs. | Diff. = $0''.408$ } Tolerably steady. Observed on the meridian. Night fine. Mean Result. Position $77^\circ\ 30'\ sp$; Distance $10''.350$; Epoch $1825.34$. Mr. South's observations of the apparent distances No. D CLII. R. A. $13^h\ 36^m$; Decl. $9^\circ\ 40'$ S. Nova; Double; 9th and $9\frac{1}{2}$ magnitudes; the smaller star does not bear a very good illumination. Passy; May 7, 1825; Seven-feet Equatorial. Position $= 57^\circ\ 21'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 18'$ } Difficult. Distance $= 53''.643$ | 5 Obs. | Diff. = $0''.913$ } Difficult. Observed on the meridian. Night very favourable. Passy; May 10, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position $= 56^\circ\ 19'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 2'$ } Mean Result. Distance $= 54''.095$ | 5 Obs. | Diff. = $0''.865$ } Mean Result. Position $56^\circ\ 50'\ s f$; Distance $53''.869$; Epoch $1825.35$. No. D CLIII. R. A. $13^h\ 38^m$; Decl. $19^\circ\ 18'$ N. Nova; Double; 8th and 11th magnitudes: the small star scarcely bears any illumination. Passy; May 7, 1825; Seven-feet Equatorial. Position $= 83^\circ\ o'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 54'$ } Extremely difficult. Distance $= 30''.257$ | 5 Obs. | Diff. = $0''.432$ } Extremely difficult. Observed when 15 minutes east of the meridian. Night favourable. Passy; May 14, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position $= 82^\circ\ 50'\ s p$ | 5 Obs. | Diff. = $1^\circ\ 50'$ } Excessively difficult. Distance $= 30''.778$ | 5 Obs. | Diff. = $0''.360$ } Excessively difficult. Night fine, but the small star bears only the most scanty illumination. Mean Result. Position $82^\circ\ 55'\ s p$; Distance $30''.517$; Epoch $1825.36$. and positions of 458 double and triple stars, &c. No. DCLIV. R. A. $13^h\ 40^m$; Decl. $39^\circ\ 25' N.$ Nova; Double; 8th and 11th magnitudes. Passy; April 29, 1825; Seven-feet Equatorial. Position = $32^\circ\ 29'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 48'$ \{ Very difficult. Distance = $1'\ 10''.599$ | 5 Obs. | Diff. = $0''.962$ \{ Extremely difficult. The small star scarcely bears the slightest illumination. Passy; May 27, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = $31^\circ\ 57'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 20'$ \{ Very difficult. Distance = $1'\ 11''.089$ | 5 Obs. | Diff. = $1''.491$ Mean Result. Position $32^\circ\ 13'\ sp$; Distance $1'\ 10''.844$; Epoch $1825.36$. No. DCLV. R. A. $13^h\ 42^m$; Decl. $18^\circ\ 35' N.$ Nova; Double; 9th and 11th magnitudes. Passy; May 8, 1825; Seven-feet Equatorial. Position = $13^\circ\ 59'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 38'$ \{ Extremely difficult. Distance = $35''.448$ | 5 Obs. | Diff. = $2''.043$ Observed on the meridian. Night fine, but the small star is very faint. Passy; May 27, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $14^\circ\ 1'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 40'$ \{ Extremely difficult. Distance = $34''.661$ | 5 Obs. | Diff. = $0''.913$ Mean Result. Position $14^\circ\ 0'\ nf$; Distance $35''.054$; Epoch $1825.37$. Mr. South's observations of the apparent distances No. DCLVI. R. A. $13^h\ 42^m$; Decl. $22^\circ\ 12'$ N. Nova; Double; 7th and 8th magnitudes. Passy; March 7, 1825; Seven-feet Equatorial. Position = $62^\circ\ 0'\ s\ p$ | 5 Obs. | Diff. = $0^\circ\ 41'$ } Very steady. Distance = $1'\ 25''.599$ | 5 Obs. | Diff. = $0''.505$ } Observed when $2^h\ 40'$ east of the meridian. Passy; March 26, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $61^\circ\ 41'\ s\ p$ | 5 Obs. | Diff. = $1^\circ\ 0'$ } Unsteady. Distance = $1'\ 26''.467$ | 5 Obs. | Diff. = $1''.130$ } Mean Result. Position $61^\circ\ 50'\ s\ p$ (10 Obs.); Distance $1'\ 26''.033$ (10 Obs.); Epoch 1825.20. No. DCLVII. R. A. $13^h\ 46^m$; Decl. $7^\circ\ 12'$ S. Nova; Double; $8\frac{1}{2}$ and 9th magnitudes: the small star bears a tolerable illumination. Passy; May 5, 1825; Seven-feet Equatorial. Position = $39^\circ\ 4'\ n\ f$ | 5 Obs. | Diff. = $3^\circ\ 5'$ } Rather difficult. Distance = $2''.529$ | 5 Obs. | Diff. = $0''.481$ } Difficult. Observed when on the meridian. Stars tolerably well defined, but unsteady. I tried to use a higher power than 181, but could not do it advantageously. Passy; May 10, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $9\frac{1}{2}$ magnitudes. Position = $37^\circ\ 29'\ n\ f$ | 5 Obs. | Diff. = $2^\circ\ 36'$ } Difficult. Distance = $2''.928$ | 5 Obs. | Diff. = $0''.240$ } A magnifying power of 181 is insufficient to separate distinctly these stars from each other; but under a higher power they become pale and ill defined. Passy; June 21, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Distance = $2''.639$ | 5 Obs. | Diff. = $0''.336$. Very difficult. Observed when 50 minutes west of the meridian. Night fine. Mean Result. Position $38^\circ\ 16'\ n\ f$; Epoch 1825.35; Distance $2''.699$; Epoch 1825.39. and positions of 458 double and triple stars, &c. No. DCLVIII. R.A. $13^h\ 51^m$; Decl. $26^\circ\ 41'N$. Struve, 449; Hist. Cæl. 335; Double; 9th and 10th magnitudes; small star decidedly blue. Blackman-street; April 18, 1824; Five-feet Equatorial. Position = $29^\circ\ 12'\ sp$ Distance = $4''.737$ | 5 Obs. | Diff. = $1^\circ\ 9'$ | | 5 Obs. | Diff. = $0''.632$ | Difficult. Blackman-street; April 19, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $28^\circ\ 32'\ sp$ Distance = $5''.295$ | 5 Obs. | Diff. = $1^\circ\ 13'$ | | 5 Obs. | Diff. = $0''.889$ | Difficult. Mean Result. Position $28^\circ\ 52'\ sp$; Distance $5''.016$; Epoch 1824.30. No. DCLIX. R.A. $13^h\ 56^m$; Decl. $17^\circ\ 12'S$. Struve, 451; Hist. Cæl. 233; Double; 9th and 11th, or 12th magnitudes. Passy; June 1, 1825; Seven-feet Equatorial. Position = $79^\circ\ 10'\ sf$ Distance = $32''.625$ | 5 Obs. | Diff. = $1^\circ\ 4'$ | | 5 Obs. | Diff. = $1''.875$ | Excessively difficult. Observed when on the meridian, but small star very indistinct. Passy; June 9, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $79^\circ\ 44'\ sf$ Distance = $31''.577$ | 5 Obs. | Diff. = $1^\circ\ 28'$ | | 5 Obs. | Diff. = $0''.937$ | Night very favourable. Measures not excessively difficult. Stars steady. Passy; June 12, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Distance = $31''.889$ | 5 Obs. | Diff. = $1''.082$. Excessively difficult. Mean Result. Position $79^\circ\ 27'\ sf$; Epoch 1825.43; Distance $32''.031$; Epoch 1825.44. Mr. South's observations of the apparent distances No. D CLX. R.A. $14^h\ 0'$; Decl. $22^o\ 3'$ N. Nova; Double; $8\frac{1}{2}$ and 10th magnitudes: large, white; small, blue. Passy; May 5, 1825; Seven-feet Equatorial. Position = $69^o\ 9'\ n.f$ | 5 Obs. | Diff. = $3^o\ 35'$ } Difficult. Distance = $4''.741$ | 5 Obs. | Diff. = $0''.360$ } Very difficult. Observed when on the meridian; the small star does not bear a good illumination. Passy; May 10, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 10th magnitudes. Position = $70^o\ 17'\ n.f$ | 5 Obs. | Diff. = $3^o\ 34'$ } Very difficult. Distance = $5''.035$ | 5 Obs. | Diff. = $0''.481$ } The small star is blue, and bears but the most feeble illumination. Mean Result. Position $69^o\ 43'\ n.f$; Distance $4''.888$; Epoch $1825.35$. No. D CLXI. R.A. $14^h\ 1'$; Decl. $2^o\ 30'$ S. Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $62^o\ 23'\ n.f$ | 5 Obs. | Diff. = $1^o\ 2'$ } A few minutes west Distance = $7''.988$ | 5 Obs. | Diff. = $0''.384$ } of the meridian. Passy; May 9, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $63^o\ 20'\ n.f$ | 5 Obs. | Diff. = $1^o\ 15'$ } Difficult. Distance = $7''.886$ | 5 Obs. | Diff. = $0''.408$ } Very difficult. Mean Result. Position $62^o\ 51'\ n.f$; Distance $7''.937$; Epoch $1825.35$. and positions of 458 double and triple stars, &c. No. DCLXII. R. A. $14^h\ 3^m$; Decl. $29^\circ\ 35'$ N. Nova; Double; 8th and 12th magnitudes. Passy; May 7, 1825; Seven-feet Equatorial. Position $18^\circ\ 17'\ s f$ | 5 Obs. | Diff. = $3^\circ\ 2'$ } Excessively difficult. Distance $13''.349$ | 5 Obs. | Diff. = $1''.250$ } Observed on the meridian. Night fine; but the small star is extremely faint, and scarcely bears any illumination. Passy; May 10, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position $16^\circ\ 48'\ s f$ | 5 Obs. | Diff. = $0^\circ\ 22'$ } Excessively difficult. Distance $14''.446$ | 5 Obs. | Diff. = $1''.130$ } Small star is blue, and allows only the most feeble illumination. Passy; June 1, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Distance $13''.607$ | 5 Obs. | Diff. = $0''.962$. Excessively difficult. Mean Result. Position $17^\circ\ 32'\ s f$; Epoch $1825.35$; Distance $13''.801$; Epoch $1825.37$. No. DCLXIII. R. A. $14^h\ 40^m$; Decl. $23^\circ\ 30'$ S. Nova; Double; 8th and 10th magnitudes; small, blue. Passy; May 5, 1825; Seven-feet Equatorial. Position $51^\circ\ 14'\ s p$ | 5 Obs. | Diff. = $1^\circ\ 28'$ } Difficult. Distance $56''.624$ | 5 Obs. | Diff. = $0''.481$ } Observed when 10 minutes east of the meridian. Passy; May 9, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position $50^\circ\ 33'\ s p$ | 5 Obs. | Diff. = $0^\circ\ 58'$ } Difficult. Distance $56''.769$ | 5 Obs. | Diff. = $0''.408$ } Very difficult. Observed on the meridian; but stars not steady. Mean Result. Position $50''.53'\ s p$; Distance $56''.696$; Epoch $1825.35$. Mr. South's observations of the apparent distances No. DCLXIV. R.A. $14^h\ 53^m$; Decl. $16^\circ\ 29'$ N. Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; May 5, 1825; Seven-feet Equatorial. Position = $84^\circ\ 9'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 58'$ } Satisfactory. Distance = $25''.756$ | 5 Obs. | Diff. = $0''.817$ } Satisfactory. Measures easy; each star bears a tolerable illumination. Passy; May 9, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $83^\circ\ 56'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Difficult. Distance = $25''.919$ | 5 Obs. | Diff. = $0''.432$ } Difficult. Mean Result. Position $84^\circ\ 2'\ sp$; Distance $25''.837$; Epoch 1825.35. No. DCLXV. R.A. $14^h\ 55^m$; Decl. $17^\circ\ 13'$ S. Nova; Double; $8\frac{1}{2}$ and 10th magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = $2^\circ\ 9'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 15'$ } Difficult. Distance = $24''.715$ | 5 Obs. | Diff. = $0''.553$ } Very difficult. Passy; May 10, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 11th magnitudes. Position = $1^\circ\ 35'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Very difficult. Distance = $25''.428$ | 5 Obs. | Diff. = $0''.866$ } Very difficult. Observed on the meridian. Night fine. Passy; June 10, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 10th magnitudes. Position = $1^\circ\ 49'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 9'$ } Difficult. Distance = $25''.667$ | 5 Obs. | Diff. = $1''.270$ } Very difficult. Observed on the meridian: the small star bears but a very feeble illumination. Mean Result. Position $1^\circ\ 51'\ sf$; Distance $25''.270$; Epoch 1825.35. and positions of 458 double and triple stars, &c. No. DCLXVI. R. A. $14^h\ 56^m$; Decl. $75^\circ\ 36'$ N. 33 (Bode) Ursæ Minoris; South’s Catalogue. Double; 6th and 9th magnitudes. Blackman-street; June 8, 1824; Five-feet Equatorial. Position $= 52^\circ\ 6'\ n f$ | 5 Obs. | Diff. = $0^\circ\ 19'$ Distance $= 2'\ 53''.259$ | 5 Obs. | Diff. = $1''.322$ Passy; June 12, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position $= 52^\circ\ 0'\ n f$ | 5 Obs. | Diff. = $0^\circ\ 20'$ Distance $= 2'\ 53''.101$ | 5 Obs. | Diff. = $0''.841$ Unsteady. Mean Result. Position $52^\circ\ 3'\ n f$; Distance $2'\ 53''.180$; Epoch 1824.94. No. DCLXVII. R. A. $15^h\ 3^m$; Decl. $4^\circ\ 55'$ S. Nova; Double; 9th and 13th magnitudes. Passy; May 10, 1825; Seven-feet Equatorial. Position $= 65^\circ\ 39'\ n p$ | 5 Obs. | Diff. = $0^\circ\ 42'$ Distance $= 31''.175$ | 5 Obs. | Diff. = $1''.322$ Excessively difficult. The small star bears only the slightest illumination; and unless the weather is very favourable, it cannot be seen even in the unilluminated field of view of this instrument, with a power of 181. Observed with 92. Passy; June 9, 1825; Seven-feet Equatorial. 9th and 12th, or 13th magnitudes. Position $= 65^\circ\ 39'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 45'$ Distance $= 32''.188$ | 5 Obs. | Diff. = $0''.841$ Excessively difficult. Night fine; but the small star scarcely bears the least illumination. Observations made with 92. Mean Result. Position $65^\circ\ 39'\ n p$; Distance $31''.181$; Epoch 1825.39. MDCCCXXVI. Mr. South's observations of the apparent distances No. D CLXVIII. R. A. $15^h\ 4^m$; Decl. $39^\circ\ 38'N.$ Nova; Double; 9th and 13th, or 15th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $64^\circ\ 56'np$ | 5 Obs. | Diff. = $2^\circ\ 58'$ } Excessively difficult. Distance = $10''.8615$ | 6 Obs. | Diff. = $1''.130$ } Night remarkably fine; yet the small star is so extremely obscure, that the results may be a little erroneous. Passy; June 10, 1825; Seven-feet Equatorial. 9th and 15th magnitudes. Position = $59^\circ\ 15'np$ | 5 Obs. | Diff. = $3^\circ\ 55'$ } Excessively difficult. Distance = $10''.866$ | 5 Obs. | Diff. = $0''.601$ } The small star is light blue, and bears scarcely the least illumination; the measures must be regarded with suspicion. Passy; June 12, 1825; Seven-feet Equatorial. 9th and 14th, or 15th magnitudes. Position = $63^\circ\ 3'np$ | 5 Obs. | Diff. = $3^\circ\ 55'$ } Excessively difficult. Position = $63^\circ\ 30'np$ | 5 Obs. | Diff. = $4^\circ\ 25'$ } The first set was gotten with a power of 92; the second with 157. The small star is light blue, and with 181, (the commonly used eye-piece,) it could scarcely be distinguished. Observed when on the meridian. Night very favourable. Mean Result. Position $63^\circ\ 50'np$; Distance $10''.740$; Epoch $1825.44$. In taking the mean, the position observed on June 10, is excluded. and positions of 458 double and triple stars, &c. No. DCLXIX. R. A. $15^h\ 5^m$; Decl. $15^\circ\ 5'N.$ Nova; Double; 10th and 13th, or 15th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $74^\circ\ 30'\ nf$ | 7 Obs. | Diff. = $6^\circ\ 33'$ } Very doubtful. Distance = $6''.297$ | 5 Obs. | Diff. = $0''.577$ These stars will bear neither illumination nor magnifying power. With 181 nothing could be obtained worth transcribing; and 157 was tried unsuccessfully. The observations were made with 92, the lowest power I have; and were attended with such extreme difficulty, that I regard them as little else than approximations. The stars on the meridian when observed, and the night unusually fine. Passy; June 10, 1825; Seven-feet Equatorial. 10th and 15th magnitudes. Position = $71^\circ\ 46'\ nf$ | 7 Obs. | Diff. = $3^\circ\ 15'$ } Excessively difficult. Distance = $5''.817$ | 5 Obs. | Diff. = $0''.601$ The stars are so extremely pale, that a higher power than 92 cannot be used: the results are very suspicious: I have no confidence in their accuracy. The night is remarkably favourable for difficult observations. Mean Result. Position $73^\circ\ 8'\ nf$; Distance $6''.057$; Epoch 1825.44. No. DCLXX. R. A. $15^h\ 10^m$; Decl. $2^\circ\ 28'N.$ 5 Serpentis; STRUVE, 480; III. 106. Double; 7th and 15th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $51^\circ\ 17'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 3'$ } Extremely difficult. Distance = $10''.680$ | 5 Obs. | Diff. = $0''.721$ } Excessively difficult. Observed when on the meridian with a power of 92; with 181 and 157 I could not see the small star, which bears so very feeble an illumination, that the accuracy of the results is perhaps a little questionable. Mr. South's observations of the apparent distances No. D CLXX. continued. Passy; June 14, 1825; Seven-feet Equatorial. 6th and 15th, or 20th magnitudes. Position = $49^\circ 45' nf$ | 2 Obs. | Diff. = $3^\circ 29'$. Excessively difficult. The small star will not bear the slightest illumination. No measures of distance can be procured, and these of position are little else than approximations. Passy; June 17, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = $51^\circ 6' nf$ | 5 Obs. | Diff. = $2^\circ 20'$ } Excessively difficult. Distance = $10''.716$ | 5 Obs. | Diff. = $0''.601$ } Observed on the meridian. Night fine; but the small star will bear only the most feeble illumination. Mean Result. Position $50^\circ 57' nf$; Distance $10''.698$; Epoch 1825.45. Sir W. Herschel has no measures of this star. (H.) No. D CLXXI. R. A. $15^h 18^m$; Decl. $10^\circ 20' S.$ Nova; Double; 9th and 11th magnitudes. Passy; May 27, 1825; Seven-feet Equatorial. Position = $43^\circ 15' sf$ | 5 Obs. | Diff. = $2^\circ 0'$ } Extremely difficult. Distance = $9''.487$ | 5 Obs. | Diff. = $0''.962$ } Excessively difficult. The small star will not bear a good illumination. Night fine. Passy; May 31, 1825; Seven-feet Equatorial. 9th and 13th magnitudes. Position = $42^\circ 14' sf$ | 5 Obs. | Diff. = $2^\circ 23'$ } Excessively difficult. Distance = $9''.659$ | 4 Obs. | Diff. = $0''.913$ } From the extreme faintness of the small star, great reliance must not be placed in the accuracy of these measures. Night tolerably good. Mean Result. Position $42^\circ 44' sf$; Distance $9''.573$; Epoch 1825.41. and positions of 458 double and triple stars, &c. No. DCLXXII. R. A. $15^h\ 22^m$; Decl. $19^\circ\ 35'$ S. Nova; Double; 8th and 10th magnitudes. Passy; May 9, 1825; Seven-feet Equatorial. Position $= 13^\circ\ 39' np$ | 5 Obs. | Diff. = $0^\circ\ 43'$ } Difficult. Distance $= 11''.199$ | 5 Obs. | Diff. = $0''.432$ } The small star is decidedly light blue, and is rendered more distinct by slight illumination. Observed on the meridian. Passy; May 10, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position $= 12^\circ\ 50' np$ | 5 Obs. | Diff. = $1^\circ\ 45'$ } Very difficult. Distance $= 11''.738$ | 5 Obs. | Diff. = $1''.322$ } Stars on the meridian when observed; the smaller is blue, and bears but a feeble illumination. Night fine. Mean Result. Position $13^\circ\ 14' np$; Distance $11''.468$; Epoch $1825.35$. No. DCLXXIII. R. A. $15^h\ 23^m$; Decl. $23^\circ\ 52'$ S. Nova; Double; equal, each $8\frac{1}{2}$ magnitude. Passy; May 7, 1825; Seven-feet Equatorial. Position $= 27^\circ\ 14' np$ or $sf$ | 5 Obs. | Diff. = $1^\circ\ 6'$ } Distance $= 9''.166$ | 5 Obs. | Diff. = $0''.481$ } Observed when a few minutes east of the meridian. Measures satisfactory. Night very favourable. Passy; May 24, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 27^\circ\ 34' np$ | 5 Obs. | Diff. = $1^\circ\ 57'$ } Difficult. Distance $= 9''.190$ | 5 Obs. | Diff. = $0''.745$ } Observed on the meridian, but night unfavourable. Mean Result. Position $27^\circ\ 44' np$ or $sf$; Distance $9''.178$; Epoch $1825.37$. Mr. South's observations of the apparent distances No. DCLXXIV. R. A. $15^h\ 32^m$; Decl. $36^\circ\ 54' N.$ Nova; Double; 8th and $8\frac{1}{4}$ magnitudes. Passy; May 7, 1825; Seven-feet Equatorial. Position = $4^\circ\ 55'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 20'$ Steady and well defined. Distance = $15''\ 855$ | 5 Obs. | Diff. = $0''.408$ A few minutes west of the meridian when observed. Passy; May 24, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $8\frac{3}{4}$ magnitudes. Position = $5^\circ\ 6'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 26'$ Satisfactory. Distance = $15''\ 441$ | 5 Obs. | Diff. = $0''.336$ Observed on the meridian. Stars tolerably steady. Mean Result. Position $5^\circ\ 0'\ sp$; Distance $15''.648$; Epoch 1825.37. No. DCLXXV. R. A. $15^h\ 51'$; Decl. $22^\circ\ 16' N.$ Nova; Triple; A of the 9th, B of the 10th, and C of the 8th magnitudes. Measures of A B. Blackman-street; July 8, 1824; Seven-feet Equatorial. Position = $62^\circ\ 49'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 15'$ Very difficult. Distance = $5''.352$ | 5 Obs. | Diff. = $0''.432$ Extremely difficult. The small star bears but the most feeble illumination. Observed when 45 minutes west of the meridian. Passy; June 10, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $60^\circ\ 44'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 32'$ Very difficult. Distance = $4''.821$ | 5 Obs. | Diff. = $0''.529$ Observed on the meridian. Night fine; but neither star bears a good illumination. Mean Result. Position $61^\circ\ 46'\ sp$; Distance $5''.086$; Epoch 1824.98. No. DCLXXV. continued. Measures of A C. Blackman-street; June 8, 1824; Five-feet Equatorial. Position = $33^\circ 45' sp$ | 5 Obs. | Diff. = $1^\circ 15'$. Difficult. (C being to the south of A.) Observed on the meridian; but night very bad. Blackman-street; July 8, 1824; Seven-feet Equatorial. 9th and 8th magnitudes. Position = $33^\circ 24' sp$ | 5 Obs. | Diff. = $1^\circ 12'$ Very difficult. Distance = $1' 1''.539$ | 5 Obs. | Diff. = $2''.091$ (The star C being to the south of A.) Passy; June 10, 1825; Seven-feet Equatorial. 9th and 8th magnitudes. Distance = $1' 1''.527$ | 5 Obs. | Diff. = $0''.793$. Very difficult. The proximity of the star B to A, and neither of them bearing a good illumination, or a high magnifying power to separate them considerably from each other, render the observations of distance of the two stars A C difficult. (The star C is to the south of A.) Night pretty fine. Mean Result. Position $33^\circ 34' sp$; Epoch 1824.48; Distance $1' 1''.533$; Epoch 1824.98. No. DCLXXVI. R. A. $15^h 54^m$; Decl. $33^\circ 52' N.$ ρ Coronæ; STRUVE, 503; VI. 93. Double; 6th and 15th magnitudes; small, blue. Passy; June 17, 1825; Seven-feet Equatorial. Position = $34^\circ 34' sf$ | 5 Obs. | Diff. = $0''.34'$ Excessively difficult. Distance = $1' 18''.799$ | 5 Obs. | Diff. = $0''.962$ Observed with 92: with a higher power I could not distinguish the small star, even under the most feeble illumination. The night is fine; but the measures are attended with such extreme difficulty, that those of distance are perhaps liable to a little inaccuracy. No. DCLXXVI. continued. Passy; June 19, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = $35^\circ 14' sf$ | 5 Obs. | Diff. = $0^\circ 48'$ } Excessively difficult. Distance = $1' 20''.221$ | 5 Obs. | Diff. = $0''.529$ } Excessively difficult. Observed on the meridian with 92; with a higher power the small star is not visible; the measures of distance were obtained with the utmost difficulty, and are perhaps of a suspicious character. Passy; June 21, 1825; Seven-feet Equatorial. 6th and 15th or 20th magnitudes. Position = $35^\circ 30' sf$ | 5 Obs. | Diff. = $1^\circ 1'$ Excessively difficult. Observed with 92. Night tolerably good; but I could not procure a single measure of distance. Passy; June 29, 1825; Seven-feet Equatorial. 6th and 14th or 15th magnitudes. Distance = $1' 18''.568$ | 5 Obs. | Diff. = $2''.043$. Excessively difficult. Observed with 92. Stars very steady, and 45 minutes west of the meridian. Mean Result. Position $35^\circ 6' sf$; Distance $1' 19''.196$; Epoch 1825.48. Sir W. Herschel states the position of this star on the 20th August 1783 at $54^\circ 27' sf$, and its distance at $1' 27''.73$. This is indeed a surprising change in a star of the 6th class, and which can hardly be real. It is more than probable that a mistake of a revolution ($22\frac{1}{2}^\circ$) in the reading off of the micrometer took place in the earlier measure, which would conciliate the results within about $3^\circ$. Piazzi's catalogue assigns no proper motion to this star. (H.) No. DCLXXVII. R. A. $16^h\ 15^m$; Decl. $14^\circ\ 15'N$. STRUVE, 517; II. 88. Double; 8th and 12th magnitudes; small, decidedly light blue. Passy; June 30, 1825; Seven-feet Equatorial. Position $= 48^\circ\ 44'\ np$ | 5 Obs. | Diff. $= 2^\circ\ 37'$ { Excessively difficult. Distance $= 6''.828$ | 5 Obs. | Diff. $= 0''.240$ Observed when 20 minutes west of the meridian. Stars very steady; night fine; but the smaller bears only the slightest illumination. Passy; July 4, 1825; Seven-feet Equatorial. 8th and 13th or 14th magnitudes. Position $= 47^\circ\ 29'\ np$ | 5 Obs. | Diff. $= 0^\circ\ 42'$. On the meridian. The small star is light blue, but is so extremely faint, that I cannot get any observations of distance; the angles were procured with excessive difficulty. Passy; July 8, 1825; Seven-feet Equatorial. 8th and 13th magnitudes. Position $= 48^\circ\ 57'\ np$ | 5 Obs. | Diff. $= 1^\circ\ 14'$. On the meridian. The small star decidedly light blue, and under the most feeble illumination is so extremely indistinct, that measures of distance are impracticable. Passy; July 13, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Distance $= 6''.713$ | 5 Obs. | Diff. $= 0''.408$. Extremely difficult. Observed when 30 minutes west of the meridian; but the small star is extremely indistinct, and scarcely bears the least illumination. Mean Result. Position $48^\circ\ 23'\ np$; Distance $6''.770$; Epoch $1825.51$. In 1783 the position of this star was $44^\circ\ 45'\ np$, and its distance 6 or 7"; no material change therefore has taken place in it. (H.) MDCCCXXVI. No. DCLXXVIII. R. A. 16\textsuperscript{h} 16\textsuperscript{m}; Decl. 32\textsuperscript{o} 45\textsuperscript{'} N. 23 Herculis; STRUVE, 518; V. 88. Double; 7th and 11th magnitudes. Passy; June 17, 1825; Seven-feet Equatorial. Position = 69\textsuperscript{o} 24\textsuperscript{'} nf | 5 Obs. | Diff. = 0\textsuperscript{o} 30\textsuperscript{'} \{ Extremely difficult. Distance = 36\textsuperscript{o}.909 | 5 Obs. | Diff. = 0\textsuperscript{o}.553 The small star bears but a very feeble illumination. Passy; June 18, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = 69\textsuperscript{o} 52\textsuperscript{'} nf | 5 Obs. | Diff. = 1\textsuperscript{o} 12\textsuperscript{'} \{ Difficult. Distance = 36\textsuperscript{o}.780 | 5 Obs. | Diff. = 0\textsuperscript{o}.769 Observed on the meridian; night fine; but the small star does not bear a good illumination. Mean Result. Position 69\textsuperscript{o} 38\textsuperscript{'} nf; Distance 36\textsuperscript{o}.844; Epoch 1825.46. This cannot be the same star as that described by Sir W. HERSCHEL as V. 88, whose angle of position is stated at 54\textsuperscript{o} 6\textsuperscript{'} s p in 1783. (H.) No. DCLXXIX. R. A. 16\textsuperscript{h} 32\textsuperscript{m}; Decl. 28\textsuperscript{o} 23\textsuperscript{'} N. Nova; Double; 8th and 9th magnitudes. Passy; May 27, 1825; Seven-feet Equatorial. Position = 1\textsuperscript{o} 13\textsuperscript{'} sf | 5 Obs. | Diff. = 0\textsuperscript{o} 30\textsuperscript{'} \{ Satisfactory. Distance = 16\textsuperscript{o}.860 | 5 Obs. | Diff. = 0\textsuperscript{o}.601 Passy; June 12, 1825; Seven-feet Equatorial. 8\textsuperscript{1/2} and 9th magnitudes. Position = 0\textsuperscript{o} 58\textsuperscript{'} sf | 5 Obs. | Diff. = 0\textsuperscript{o} 55\textsuperscript{'} \{ Steady. Distance = 17\textsuperscript{o}.208 | 5 Obs. | Diff. = 0\textsuperscript{o}.865 Mean Result. Position 1\textsuperscript{o} 5\textsuperscript{'} sf; Distance 17\textsuperscript{o}.034; Epoch 1825.42. and positions of 458 double and triple stars, &c. No. DCLXXX. R.A. 16\textsuperscript{h} 35\textsuperscript{m}; Decl. 13° 58' N. Nova; Double; 9th and 13th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $65° 26' n p$ | 5 Obs. | Diff. = $1° 14'$ } Excessively difficult. Distance = $13''.535$ | 5 Obs. | Diff. = $0''.529$ } The night is very favourable, but the small star will not bear the slightest illumination; hence the results are liable to some inaccuracy. Passy; June 12, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $65° 46' n p$ | 5 Obs. | Diff. = $1° 32'$ } Excessively difficult. Distance = $14''.323$ | 5 Obs. | Diff. = $1''.274$ } Observed on the meridian. Night fine; but neither star bears much illumination. Mean Result. Position $65° 36' n p$; Distance $13''.929$; Epoch 1825.45. No. DCLXXXI. R.A. 16\textsuperscript{h} 38\textsuperscript{m}; Decl. 28° 42' N. 46 Herculis; STRUVE, 532; I. 79. Double; 7th and 12th magnitudes; small star decidedly blue, and becomes much more distinct by slight illumination. Blackman-street; April 28, 1824; Five-feet Equatorial. Position = $73° 46' s f$ | 5 Obs. | Diff. = $3° 30'$ } Extremely difficult. Distance = $4''.396$ | 5 Obs. | Diff. = $1''.073$ } Observed when $3^h 10'$ east of the meridian; the results must therefore not be deemed standard. Blackman-street; June 29, 1824; Five-feet Equatorial. 7th and 10th magnitudes. Position = $71° 8' s f$ | 5 Obs. | Diff. = $3° 0'$ } By twilight. Position = $70° 44' s f$ | 5 Obs. | Diff. = $5° 55'$ } By lamp illumination. The first series was observed when the stars were one hour east of the meridian, without artificial illumination; the last when they were 35 minutes distant from it. During strong twilight the blue colour of the small star was very decided. No. D CLXXXI. continued. Blackman-street; same date; Seven-feet Equatorial. Position = $71^\circ 12' s f$ | 5 Obs. | Diff. = $1^\circ 17'$ | Remarkably steady. Distance = $6'.770$ | 5 Obs. | Diff. = $0''.288$ Observed when ten minutes east of the meridian. Blackman-street; July 3, 1824; Five-feet Equatorial. 7th and 11th magnitudes. Position = $74^\circ 43' s f$ | 5 Obs. | Diff. = $2^\circ 20'$ | Very difficult. Distance = $6'.124$ | 5 Obs. | Diff. = $0''.632$ Observed when the stars were a few minutes west of the meridian, but the night by no means favourable. Passy; March 20, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $72^\circ 3' s f$ | 2 Obs. | Diff. = $0^\circ 15'$ | Mons. Bouvard. Position = $71^\circ 49' s f$ | 2 Obs. | Diff. = $3^\circ 51'$ | South. Observed when three hours east of the meridian. Stars very unsteady; measures of distance impracticable. Passy; June 10, 1825; Seven-feet Equatorial. 8th and 14th or 15th magnitudes. Position = $75^\circ 46' s f$ | 5 Obs. | Diff. = $2^\circ 8'$ | Excessively difficult. Observed on the meridian, but the small star is so extremely indistinct that no measures of distance can be procured; and the observations of position are very suspicious. Passy; June 14, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $74^\circ 1' s f$ | 7 Obs. | Diff. = $5^\circ 2'$ | Extremely difficult. Stars on the meridian; the smaller is very indistinct. Measures taken with the greatest care; but on account of the unsteadiness of the stars, they perhaps ought not to be considered standard. No. DCLXXXI. continued. Passy; June 18, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position $= 73^\circ 51' sf$ | 7 Obs. | Diff. = $3^\circ 47'$ } Difficult. Distance $= 5''.364$ | 5 Obs. | Diff. = $0''.264$ } Difficult. Observed on the meridian. Stars well defined, and tolerably steady. Passy; June 29, 1825; Seven-feet Equatorial. 8th and 11th magnitudes; small, light blue. Position $= 74^\circ 10' sf$ | 7 Obs. | Diff. = $1^\circ 10'$ } Not difficult. Distance $= 4''.791$ | 5 Obs. | Diff. = $0''.360$ } Not difficult. Observed when 10 minutes west of the meridian. Evening very favourable; stars remarkably steady, and well defined. The results highly satisfactory. Examined the large star with 413 and 512, but found it perfectly round; hence the discordances do not arise from any elongation of it, under the ordinary observing powers employed. Passy; June 30, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position $= 77^\circ 17' sf$ | 7 Obs. | Diff. = $2^\circ 7'$ } Difficult. Distance $= 5''.193$ | 5 Obs. | Diff. = $0''.793$ } Difficult. Observed when 15 minutes west of the meridian. Stars faint, but very steady. Passy; July 2, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position $= 75^\circ 11' sf$ | 7 Obs. | Diff. = $2^\circ 38'$ } Excessively difficult. Distance $= 5''.102$ | 5 Obs. | Diff. = $0''.601$ } Excessively difficult. Observed when 10 minutes west of the meridian. Stars tolerably steady, but the small one is very faint. Mean Result. Position $73^\circ 51' sf$ (69 Observations); Epoch 1825.05. Distance $5''.391$ (35 Observations); Epoch 1825.04. A single measure in 1783 gave $66^\circ 36' sf$ for the position of this star, while another in 1802 gave $76^\circ 18'$. The present angle lies between them. This is a case, where from the No. DCLXXXI. continued. great inequality and closeness of the two stars, single measures cannot be regarded as of any weight; hence no certain conclusion can be drawn respecting its motion or rest. The distance however seems to have increased materially, as $5''.391$ is much too great for a star of the first class; and in 1783 the interval between the discs was stated at from 1 to $\frac{13}{4}$ diameter, according to the power used. This star should be watched: it is said to have a proper motion of $0''.14$ per annum in R. A. (H.) No. DCLXXXII. R. A. $16^h\ 39^m$; Decl. $30^\circ\ 18'$ N. Nova; Quadruple; A of the 9th, B of the 12th, C of $9\frac{1}{2}$, and D of the 15th magnitudes. Measures of A B. Passy; June 9, 1825; Seven-feet Equatorial. | Position = $59^\circ\ 9'\ s.f.$ | 5 Obs. | Diff. = $1^\circ\ 44'$ } Excessively difficult. | Distance = $14''.809$ | 5 Obs. | Diff. = $0''.986$ | Night very fine, but the small star is extremely faint. Passy; [June 12, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. | Position = $60^\circ\ 16'\ s.f.$ | 5 Obs. | Diff. = $2^\circ\ 57'$ } Extremely difficult. | Distance = $14''.713$ | 5 Obs. | Diff. = $0''.865$ | Night favourable; but the small star is very indistinct. Measures of A C. Passy; June 9, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. | Position = $50^\circ\ 24'\ s.f.$ | 5 Obs. | Diff. = $1^\circ\ 18'$ } Very good. | Distance = $1' 4''.523$ | 5 Obs. | Diff. = $0''.962$ | No. DCLXXXII. continued. Passy; June 12, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = $50^\circ 30' sf$ | 5 Obs. | Diff. = $0^\circ 41'$ } Satisfactory. Distance = $1' 4''.076$ | 5 Obs. | Diff. = $0''.865$ Measures of A D. Passy; June 9, 1825; Seven-feet Equatorial. 9th and 15th magnitudes. Position = $75^\circ 30' nf$; very suspicious; (single measure.) Distance estimated 3 or 4 seconds nearer to A than is the star C; but from extreme obscurity of D no measures can be obtained. Passy; June 12, 1825; Seven-feet Equatorial. 9th and 15th, or 20th magnitudes. Position = $77^\circ 0' nf$; very precarious; (single measure.) No measure of distance practicable. Night fine. Mean Result. of AB. Position $59^\circ 42' sf$; Distance $14''.761$; of AC. Position $50^\circ 27' sf$; Distance $1' 4''.299$; of AD. Position $76^\circ 15' nf$±; estimated distance 1 minute; Epoch 1825.44. No. DCLXXXIII. R. A. $16^h 42^m$; Decl. $36^\circ 15' N.$ Nova; Double; 9th and 10th magnitudes; the small star does not bear a good illumination. Passy; June 5, 1825; Seven-feet Equatorial. Position = $69^\circ 19' nf$ | 5 Obs. | Diff. = $2^\circ 43'$ } Extremely difficult. Distance = $7''.249$ | 5 Obs. | Diff. = $0''.384$ Passy; June 12, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $69^\circ 41' nf$ | 5 Obs. | Diff. = $0^\circ 57'$ } Very difficult. Distance = $7''.067$ | 5 Obs. | Diff. = $0''.288$ Small star is light blue, and bears only a very feeble illumination. Mean Result. Position $69^\circ 30' nf$; Distance $7''.158$; Epoch 1825.44. Mr. South's observations of the apparent distances No. DCLXXXIV. R. A. $17^h\ 3^m$; Decl. $30^\circ\ 37'$ N. Nova; Double; 7th and 10th magnitudes. Passy; June 16, 1825; Seven-feet Equatorial. Position = $88^\circ\ 59'\ s^f$ | 5 Obs. | Diff. = $1^\circ\ 27'$ } Very difficult. Distance = $24''.633$ | 5 Obs. | Diff. = $0''.505$ } The small star bears only a very feeble illumination. Passy; June 19, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = $89^\circ\ 21'\ s^f$ | 5 Obs. | Diff. = $1^\circ\ 25'$ } Extremely difficult. Distance = $24''.366$ | 5 Obs. | Diff. = $0''.769$ } The small star is extremely faint. Mean Result. Position $89^\circ\ 10'\ s^f$; Distance $24''.499$; Epoch 1825.46. No. DCLXXXV. R. A. $17^h\ 6^m$; Decl. $26^\circ\ 25'$ S. 38 Ophiuchi; I. 35; South's Catalogue. Double; 8th and 12th, or 13th magnitudes. Passy; July 4, 1825; Seven-feet Equatorial. Position = $61^\circ\ 9'\ n^p$ | 7 Obs. | Diff. = $9^\circ\ 0'$ } Unsteady. Distance = $6''.249$ | 5 Obs. | Diff. = $0''.962$ } The small star is so excessively indistinct, that the measures, especially those of distance, must only be regarded as approximations. The star here observed is indisputably 38 Ophiuchi. I had re-measured 36 Ophiuchi for it in Blackman-street twice during the summer of last year; not having found any other double star in the neighbourhood. On comparing however my observations with Sir W. Herschel's, it was evident that we had not measured the same star; and by close attention the small star of 38 Ophiuchi was perceived. My first attempts to determine the distance proving unsuccessful, cautious estimation regarded it as 5 or 6 seconds: the night however having somewhat improved, the above observations of it were and positions of 458 double and triple stars, &c. No. D CLXXXV. continued. procured. There is a small star* between 36 and 38, but which when examined with 413 and 512, I could not suspect to be double; nor was the large star of 38 sub-divided by those powers. Passy; July 13, 1825; Seven-feet Equatorial. 8th and 13th, or 15th magnitudes. Position = $62°\ 12' np$ | 7 Obs. | Diff. = $9°\ 6'$ } Excessively difficult. Distance = $7''.785$ | 5 Obs. | Diff. = $0''.360$ The small star is so extremely obscure, that the measures deserve but very little confidence. Observed on the meridian. Night favourable. Passy; July 14, 1825; Seven-feet Equatorial. 8th and 14th, or 15th magnitudes. Position = $60°\ 53' np$ | 7 Obs. | Diff. = $3°\ 52'$ } Excessively difficult. Distance = $7''.359$ | 5 Obs. | Diff. = $0''.601$ Observed on the meridian with 157: the small star so extremely faint, that with 181, the common observing power, I could not distinguish it. The accuracy of the results very questionable. Passy; July 20, 1825; Seven-feet Equatorial. 8th and 13th, or 14th magnitudes. Position = $59°\ 5' np$ | 7 Obs. | Diff. = $9°\ 50'$ } Extremely unsteady. Distance = $7''.155$ | 5 Obs. | Diff. = $1''.250$ The measures are so excessively difficult, that I feel but little confidence in their accuracy. Mean Result. Position $60°\ 50' np$ (28 Obs.); Distance $7''.137$; Epoch 1825.53. If the star here measured be really the same with I. 35, its distance must be much increased. $7''.137$ is a great distance, for a star even of the 2nd class. In 1783 it is described as having the interval of the discs only $\frac{1}{4}$ diameter of the large star, which, for a star of the 8th magnitude, could hardly correspond to more than $4''$ from centre to centre. The angles, it is true, agree—that given by Sir W. Herschel in 1783 being $60°\ 48' np$, differing only $2'$ from its present value. This star requires further observation. (H.) * This star is 30 Scorpii, and it is the only star in the neighbourhood which is likely to be mistaken for 38 Ophiuchi. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCLXXXVI. R. A. $17^\text{h} 11^\text{m}$; Decl. $28^\circ 57'$ N. Nova; Double; 8th and 9th magnitudes. Passy; June 16, 1825; Seven-feet Equatorial. Position = $85^\circ 59' nf$ | 5 Obs. | Diff. = $0^\circ 39'$ } Tolerably steady. Distance = $55''.117$ | 5 Obs. | Diff. = $0''.721$ } Passy; June 19, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $85^\circ 4' nf$ | 5 Obs. | Diff. = $0^\circ 56'$ } Very difficult. Distance = $54''.847$ | 5 Obs. | Diff. = $0''.336$ } The small star is very indistinct. Mean Result. Position $85^\circ 31' nf$; Distance $54''.982$; Epoch 1825.46. No. DCLXXXVII. R. A. $17^\text{h} 13^\text{m}$; Decl. $24^\circ 41'$ N. 70 Herculis; STRUVE, 543. Double; 5th and 9th magnitudes. Blackman-street; July 10, 1824; Five-feet Equatorial. Position = $35^\circ 30' nf$ | 5 Obs. | Diff. = $0^\circ 30'$ } Difficult. Distance = $3' 37''.433$ | 5 Obs. | Diff. = $1''.168$ } The small star bears much less illumination, than its apparent magnitude would lead us to expect. The night is cloudy; but between the clouds the stars are very brilliant. Passy; June 23, 1825; Seven-feet Equatorial. 6th and 11th magnitudes. Position = $33^\circ 23' nf$ | 5 Obs. | Diff. = $0^\circ 36'$ } Extremely difficult. Distance = $3' 39''.432$ | 2 Obs. | Diff. = $0''.168$ } The small star becomes invisible under a very feeble illumination; the distance is very suspicious. Passy; July 14, 1825; Seven-feet Equatorial. 5th and 10th magnitudes. Distance = $3' 38''.151$ | 5 Obs. | Diff. = $1''.875$. Very steady. Mean Result. Position $33^\circ 26' nf$; Epoch 1825.00; Distance $3' 38''.339$; Epoch 1825.18. and positions of 458 double and triple stars, &c. No. DCLXXXVIII. R. A. $17^h\ 18^m$; Decl. $37^\circ\ 8'$ N. Nova; Double; 8th and 11th magnitudes. Passy; June 18, 1825; Seven-feet Equatorial. Position = $76^\circ\ 34'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 30'$ } Very difficult. Distance = $33''.323$ | 5 Obs. | Diff. = $0''.408$ } Passy; July 2, 1825; Seven-feet Equatorial. 8th and 12th, or 13th magnitudes. Position = $75^\circ\ 52'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 0'$ } Steady. Distance = $33''.373$ | 5 Obs. | Diff. = $2''.645$ } The small star is so extremely indistinct, that the measures are excessively difficult, and those of distance are open to suspicion. Mean Result. Position $76^\circ\ 13'\ nf$; Distance $33''.348$; Epoch 1825.49. No. DCLXXXIX. R. A. $17^h\ 19^m$; Decl. $39^\circ\ 25'$ N. Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; June 16, 1825; Seven-feet Equatorial. Position = $71^\circ\ 52'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 32'$ } Not steady. Distance = $1' 29''.018$ | 5 Obs. | Diff. = $0''.577$ } Passy; June 19, 1825; Seven-feet Equatorial. 8\(\frac{1}{2}\) and 9th magnitudes. Position = $71^\circ\ 26'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 27'$ } Steady. Distance = $1' 29''.526$ | 5 Obs. | Diff. = $0''.529$ } Mean Result. Position $71^\circ\ 39'\ sp$; Distance $1' 29''.272$; Epoch 1825.46. Mr. South's observations of the apparent distances No. DCXC. R.A. $17^h\ 23^m$; Decl. $35^\circ\ 5'N.$ Nova; Double; 8th and 10th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $49^\circ\ 26'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 15'$ } On the meridian. Distance = $10''.711$ | 5 Obs. | Diff. = $0''.264$ } The small star is blue, and bears a tolerable illumination. Night unusually fine. Passy; June 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $44^\circ\ 14'\ s f$ | 5 Obs. | Diff. = $2^\circ\ 51'$ } On the meridian. Distance = $9''.875$ | 5 Obs. | Diff. = $0''.817$ } Stars remarkably steady; the small one is decidedly light blue, and bears only a feeble illumination; hence the measures are difficult. Passy; July 2, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $39^\circ\ 17'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 42'$ } Excessively difficult. Distance = $10''.820$ | 5 Obs. | Diff. = $0''.601$ } Small star decidedly pale blue, and bears but a very slight illumination. Stars steady, and 10 minutes west of the meridian. Passy; July 14, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $38^\circ\ 33'\ s f$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Extremely difficult. Distance = $10''.866$ | 5 Obs. | Diff. = $0''.481$ } The small star is light blue, and bears only a very feeble illumination; night favourable; stars steady. Mean Result. Position $39^\circ\ 25'\ s f$; Distance $10''.799$; Epoch 1825.49. The observations of June 29th are not included; as however the measures are of very considerable difficulty, I have not thought it advisable to suppress them. No. DCXCI. R. A. $17^h\ 32^m$; Decl. $24^\circ\ 30'$ N. .Struve, 551; III. 104. Triple; A 6th, B 10th, and C of the 9th magnitudes: the star B is decidedly blue, and bears a very considerable illumination. Blackman-street; July 8, 1824; Seven-feet Equatorial. Measures of A B. | Position = $81^\circ\ 7'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 31'$ | | Distance = $17''.374$ | 5 Obs. | Diff. = $0''.384$ | On the meridian. Passy; June 23, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. | Position = $80^\circ\ 57'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 18'$ | | Distance = $17''.054$ | 5 Obs. | Diff. = $0''.649$ | Very unsteady. Measures of A C. Blackman-street; July 8, 1824; Seven-feet Equatorial. | Position = $71^\circ\ 54'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 43'$ | | Distance = $2'\ 38''.081$ | 5 Obs. | Diff. = $2''.091$ | Passy; June 23, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. | Position = $71^\circ\ 47'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 21'$ | | Distance = $2'\ 38''.454$ | 5 Obs. | Diff. = $0''.986$ | Very unsteady. Mean Result. of A B. Position $81^\circ\ 2'\ nf$; Distance $17''.214$; Epoch 1825.00. of A C. Position $71^\circ\ 50'\ sf$; Distance $2'\ 28''.267$; Epoch 1825.00. A very trifling change ($+2^\circ\ 46''$) in position, and a rather more notable alteration ($+2''.881$) in distance, appear on comparing these observations with those of 1783. (H.) Mr. South's observations of the apparent distances No. DCXCII. R. A. 17\textsuperscript{h} 38\textsuperscript{m}; Decl. 31\textsuperscript{o} 14\textsuperscript{'} N. Nova; Double; 9th and 10th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = 65\textsuperscript{o} 55'\textsuperscript{'} np | 5 Obs. | Diff. = 1\textsuperscript{o} 15'\textsuperscript{'} \{ On the meridian. Distance = 5\textsuperscript{''}.176 | 5 Obs. | Diff. = 0\textsuperscript{''}.649 \} The small star bears a tolerable illumination; yet the measures are difficult. Passy; June 29, 1825; Seven-feet Equatorial. 9th and 10th, or 11th magnitudes. Position = 66\textsuperscript{o} 12'\textsuperscript{'} np | 5 Obs. | Diff. = 3\textsuperscript{o} 55'\textsuperscript{'} \{ On the meridian. Distance = 4\textsuperscript{''}.883 | 5 Obs. | Diff. = 0\textsuperscript{''}.697 \} Stars very steady, but the small one bears but a very feeble illumination: the measures are very difficult. Mean Result. Position 65\textsuperscript{o} 33'\textsuperscript{'} np; Distance 5\textsuperscript{''}.029; Epoch 1825.47. No. DCXCIII. R. A. 17\textsuperscript{h} 39\textsuperscript{m}; Decl. 27\textsuperscript{o} 50'\textsuperscript{'} N. μ Herculis; STRUVE, 554; IV. 41. Double; 5th and 12th, or 13th magnitudes; small, blue. Passy; June 18, 1285; Seven-feet Equatorial. Position = 28\textsuperscript{o} 49'\textsuperscript{'} sp | 5 Obs. | Diff. = 0\textsuperscript{o} 48'\textsuperscript{'} \{ Excessively difficult. Distance = 29\textsuperscript{''}.215 | 5 Obs. | Diff. = 0\textsuperscript{''}.625 \} The small star scarcely bears the slightest illumination. Passy; July 1, 1825; Seven-feet Equatorial. 6th and 11th magnitudes. Position = 29\textsuperscript{o} 21'\textsuperscript{'} sp | 5 Obs. | Diff. = 0\textsuperscript{o} 30'\textsuperscript{'} \{ Very difficult. Distance = 29\textsuperscript{''}.468 | 5 Obs. | Diff. = 1\textsuperscript{''}.202 \} Extremely difficult. The small star is decidedly blue, and bears but the most feeble illumination. Observed on the meridian; stars very steady; and I feel that the results merit considerable confidence. No. DCXCIII. continued. Passy; July 13, 1825; Seven-feet Equatorial. 5th and 13th, or 14th magnitudes. Position $= 29^\circ 33' sp$ | 5 Obs. | Diff. = $2^\circ 30'$ } Very steady. Distance $= 29''.208$ | 5 Obs. | Diff. = $0''.601$ The small star, which is blue, will bear scarcely the least illumination: the measures are excessively difficult. Mean Result. Position $29^\circ 14' sp$; Distance $29''.297$; Epoch $1825.50$. From an imperfect observation in 1783, which made the position at that time $30^\circ \pm sp$, it should seem that this star is liable to no material change of position. (H.) No. DCXCIV. R. A. $17^h 43^m$; Decl. $1^\circ 10' N.$ 295 (Bode) Ophiuchi; South's Catalogue. Double; 7th and $7\frac{1}{4}$ magnitudes. Blackman-street; June 26, 1824; Five-feet Equatorial. Position $= 32^\circ 2' sp$ | 5 Obs. | Diff. = $0^\circ 32'$ } Satisfactory. Distance $= 1' 23''.070$ | 5 Obs. | Diff. = $0''.537$ Passy; June 30, 1825; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position $= 32^\circ 11' sp$ | 5 Obs. | Diff. = $1^\circ 5'$ } Very steady. Distance $= 1' 22''.293$ | 5 Obs. | Diff. = $0''.553$ Observations very good. Mean Result. Position $32^\circ 6' sp$; Distance $1' 22''.681$; Epoch $1825.00$. Mr. South's observations of the apparent distances No. DCXCV. R. A. $17^h\ 43^m$; Decl. $25^\circ\ 19'N.$ Nova; Double; 8th and 10th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $53^\circ\ 26'\ s f$ | 5 Obs. | Diff. = $4^\circ\ 42'$ Distance = $6''.605$ | 5 Obs. | Diff. = $0''.721$ Very difficult. The small star is light blue, and does not bear a good illumination. Night very favourable. Passy; June 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $56^\circ\ 24'\ s f$ | 5 Obs. | Diff. = $2^\circ\ 29'$ Distance = $6''.931$ | 5 Obs. | Diff. = $0''.408$ Very difficult. Observed when 5 minutes west of the meridian: stars very steady; the small one decidedly light blue, and bears only a very feeble illumination. Passy; July 19, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $53^\circ\ 39'\ s f$ | 5 Obs. | Diff. = $1^\circ\ 25'$ Extremely difficult. Stars a few minutes east of the meridian, and very unsteady; the small one decidedly light blue, and bears no illumination: measures of distance impracticable. Night very clear. Mean Result. Position $54^\circ\ 30'\ s f$; Epoch 1825.50; Distance $6''.768$; Epoch 1825.47. No. DCXCVI. R. A. $17^h\ 51^m$; Decl. $6^\circ\ 51'S.$ Nova; Double; 9th and 11th magnitudes; small, blue. Passy; June 9, 1825; Seven-feet Equatorial. Position = $78^\circ\ 20'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 13'$ Distance = $8''.288$ | 5 Obs. | Diff. = $0''.673$ On the meridian. The small star bears but a very feeble illumination. The night is remarkably fine, but the measures are very difficult. Passy; July 4, 1825; Seven-feet Equatorial. 9th and 11th, or 12th magnitudes. Position = $77^\circ\ 11'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 50'$ Distance = $8''.504$ | 5 Obs. | Diff. = $0''.456$ On the meridian. The small star is decidedly pale blue, and bears but a very feeble illumination: the measures are extremely difficult. Mean Result. Position $77^\circ\ 45'\ n p$; Distance $8''.396$; Epoch 1825.47. and positions of 458 double and triple stars, &c. No. DCXCVII. R. A. $17^h\ 54^m$; Decl. $26^\circ\ 33'$ N. STRUVE, 560; II. 90. Double; $8\frac{1}{2}$ and 12th magnitudes; small, decidedly light blue. Passy; July 16, 1825; Seven-feet Equatorial. Position = $71^\circ\ 44'\ s.f.$ | 5 Obs. | Diff. = $1^\circ\ 53'$ } Excessively difficult. Distance = $7''.461$ | 5 Obs. | Diff. = $0''.505$ Observed on the meridian. Night favourable; but the small star bears hardly any illumination. The results are somewhat suspicious. Passy; July 18, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 11th, or 12th magnitudes. Position = $71^\circ\ 48'\ s.f.$ | 5 Obs. | Diff. = $1^\circ\ 49'$ } Excessively difficult. Distance = $7''.545$ | 5 Obs. | Diff. = $0''.216$ Mean Result. Position $71^\circ\ 46'\ s.f.$; Distance $7''.503$; Epoch 1825.54. There is considerable discordance among the measures of this star at different epochs—that of 1783 making the position $75^\circ\ 9'\ s.f.$, and that of 1802 $77^\circ\ 54'\ s.f.$ On the whole, there seems ground to believe in a slow motion of about $\frac{1}{6}$th of a degree per annum in the direction $n.p\ s.f.$ or retrograde ($-0''.167$), while the distance has probably not undergone any sensible change. Future observations must decide the point. (H.) No. DCXCVIII. R. A. $17^h\ 54^m$; Decl. $22^\circ\ 30'$ S. Nova; Double; 8th and $9\frac{1}{2}$ magnitudes. Passy; June 30, 1825; Seven-feet Equatorial. Position = $47^\circ\ 22'\ n.p.$ | 5 Obs. | Diff. = $1^\circ\ 44'$ } Difficult. Distance = $30''.228$ | 5 Obs. | Diff. = $0''.841$ Observed when 10 minutes west of the meridian; stars very steady; but the small one does not bear a good illumination. MDCCCXXVI. Mr. South's observations of the apparent distances No. D CXCVIII. continued. Passy; July 4, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $= 47^\circ 33' np$ | 5 Obs. | Diff. = $1^\circ 5'$ } Distance $= 31''.096$ | 5 Obs. | Diff. = $0''.889$ } Extremely difficult. The small star is blue, and bears scarcely any illumination: the observations of distance very suspicious. Several stars in the field. Passy; July 10, 1825; Seven-feet Equatorial. 8th and 10th magnitudes, Distance $= 31''.442$ | 5 Obs. | Diff. = $0''.841$. Very steady. Measures excessively difficult; and I have so little confidence in them, that should they favour one set already taken, more than the other, they should not be employed to the exclusion of either. The small star is light blue, and becomes invisible under a very feeble illumination. Mean Result. Position $47^\circ 27' np$; Distance $30''.922$; Epoch $1825.51$. No. DCXCIX. R. A. $17^h 56^m$; Decl. $25^\circ 23' N.$ Nova; Double; 8th and 11th magnitudes; small, light blue, and bears scarcely any illumination. Passy; July 19, 1825; Seven-feet Equatorial. Position $= 53^\circ 43' sp$ | 5 Obs. | Diff. = $2^\circ 42'$ } Distance $= 18''.648$ | 5 Obs. | Diff. = $0''.432$ } Excessively difficult. Passy; July 20, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position $= 52^\circ 51' sp$ | 5 Obs. | Diff. = $1^\circ 45'$ } Distance $= 18''.840$ | 5 Obs. | Diff. = $0''.529$ } Extremely difficult. Stars very unsteady; the small one is blue. Mean Result. Position $53^\circ 17' sp$; Distance $18''.744$; Epoch $1825.55$. and positions of 458 double and triple stars, &c. No. DCC. R. A. 18h 0m; Decl. 16° 43' S. Nova; Double; 9th and 9½ magnitudes. Passy; July 10, 1825; Seven-feet Equatorial. Position = 84° 47' np | 5 Obs. | Diff. = 1° 21' } Very steady. Distance = 29'.187 | 5 Obs. | Diff. = 0".817 } Passy; July 13, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = 84° 30' np | 5 Obs. | Diff. = 1° 12' } Very difficult. Distance = 28".751 | 5 Obs. | Diff. = 1".034 } Observed on the meridian: small star bears only the most feeble illumination. Night good. Mean Result. Position 84° 38' np; Distance 28".969; Epoch 1825.53. No. DCCI. R. A. 18h 15m; Decl. 6° 41' S. Struve, 574; Hist. Cæl. 474. Double; 7th and 10th magnitudes. Blackman-street; June 26, 1824; Five-feet Equatorial. Position = 73° 17' sp | 5 Obs. | Diff. = 2° 15' } Extremely difficult. Distance = 6'.680 | 5 Obs. | Diff. = 0".284 } The small star bears only the most feeble illumination. Passy; June 30, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 70° 15' sp | 5 Obs. | Diff. = 1° 11' } Extremely difficult. Distance = 6".842 | 5 Obs. | Diff. = 0".481 } Observed on the meridian: stars very steady; the small one, which is very decidedly light blue, bears but the slightest illumination. Passy; July 13, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 69° 29' sp | 5 Obs. | Diff. = 1° 28' } Very difficult. Observed on the meridian. Night favourable. Mean Result. Position 71° 0' sp; Epoch 1825.11; Distance 6".761; Epoch 1824.97. Mr. South's observations of the apparent distances No. D CCII. R. A. $18^h\ 20^m$; Decl. $19^\circ\ 13'N.$ Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $77^\circ\ 24'\ sp$ Distance = $6''.402$ | 5 Obs. | Diff. = $2^\circ\ 8'$ | | 5 Obs. | Diff. = $0''.312$ | Steady. A star of the 15th magnitude precedes to the north at an angle of 9 or 10 degrees, and distant from the larger of these stars perhaps 40 seconds: its obscurity renders measures of it impracticable. Passy; June 30, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $76^\circ\ 19'\ nf$ Distance = $6''.174$ | 5 Obs. | Diff. = $2^\circ\ 14'$ | | 5 Obs. | Diff. = $0''.360$ | Very steady. Observed on the meridian: measures very satisfactory. Mean Result. Position $76^\circ\ 51'\ sp$ or $nf$; Distance $6''.288$; Epoch $1825.47$. No. D CCIII. R. A. $18^h\ 25^m$; Decl. $32^\circ\ 8'N.$ Nova; Double; 9th and $10\frac{1}{2}$, or 11th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $66^\circ\ 23'\ np$ Distance = $6''.533$ | 5 Obs. | Diff. = $1^\circ\ 44'$ | | 5 Obs. | Diff. = $0''.384$ | Very difficult. The night is extremely favourable, but the small star bears scarcely any illumination. Passy; July 13, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $65^\circ\ 55'\ sp$ Distance = $6''.333$ | 5 Obs. | Diff. = $1^\circ\ 9'$ | | 5 Obs. | Diff. = $0''.360$ | Very steady. The small star is blue, and bears a tolerable illumination. Mean Result. Position $66^\circ\ 9'\ sp$; Distance $6''.433$; Epoch $1825.48$. and positions of 458 double and triple stars, &c. No. DCCIV. R.A. $18^h\ 32^m$; Decl. $9^\circ\ 33'$ N. Struve, 582; Hist. Cæl. 87. Double; 9th and 10th magnitudes; both bluish, and bear a tolerable illumination. Blackman-street; July 12, 1824; Five-feet Equatorial. Position $= 0^\circ\ 38'\ sp$ | 5 Obs. | Diff. $= 0^\circ\ 34''$ } Difficult. Distance $= 57''.545$ | 5 Obs. | Diff. $= 1''.074$ } Difficult. Passy; July 4, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position $= 1^\circ\ 15'\ sp$ | 5 Obs. | Diff. $= 0^\circ\ 56''$ } Very difficult. Distance $= 56''.458$ | 5 Obs. | Diff. $= 0''.625$ } Very difficult. Stars very steady, but the small one does not bear a good illumination. Passy; July 19, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$, or 10th magnitudes. Position $= 1^\circ\ 19'\ sp$ | 5 Obs. | Diff. $= 0^\circ\ 34''$ } Rather difficult. Distance $= 57''.769$ | 5 Obs. | Diff. $= 0''.937$ } Rather difficult. Set the position wire to zero, and the small star remained above the wire, whilst the large one continued bisected by it, during their passage across the field. Mean Result. Position $1^\circ\ 4'\ sp$ (15 Obs.); Epoch 1825.20; Distance $57''.657$ (10 Obs.); Epoch 1825.04. The observations of distance taken July 4, are rejected in taking the mean. No. DCCV. R.A. $18^h\ 39^m$; Decl. $34^\circ\ 22'$ N. Nova; Double; large, white; small, light blue decidedly; $8\frac{1}{2}$ and $11$th magnitudes. Passy; June 29, 1825; Seven-feet Equatorial. Position $= 68^\circ\ 22'\ sf$ | 5 Obs. | Diff. $= 2^\circ\ 12'$ } Very steady. Distance $= 4''.374$ | 5 Obs. | Diff. $= 0''.649$ } Very steady. Small star bears but a very feeble illumination, and the measures are extremely difficult. Mr. South's observations of the apparent distances No. DCCV. continued. Passy; July 12, 1825; Seven-feet Equatorial. Position = $68^\circ 3' sf$ | 5 Obs. | Diff. = $2^\circ 10'$ } Tolerably steady. Distance = $4''.611$ | 5 Obs. | Diff. = $0''.601$ The small star is light blue, and bears but a feeble illumination. Night favourable. Measures very difficult. Mean Result. Position $68^\circ 12' sf$; Distance $4''.492$; Epoch 1825.51. No. DCCVI. R. A. $18^h 42^m$; Decl. $32^\circ 37' N.$ $\nu'$ Lyrae; Struve, 591; V. 40. Double; 6th and 15th magnitudes. Passy; August 10, 1825; Seven-feet Equatorial. Position = $34^\circ 24' sf$ | 5 Obs. | Diff. = $1^\circ 38'$ } Excessively difficult. Distance = $59''.933 \pm$ | 3 Obs. | Diff. = $1''.082$ Stars very steady, but the small one will bear no illumination. Observed on the meridian; the distance, I fear, may be liable to an error of two or three seconds. Night fine. Passy; August 16, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = $33^\circ 32' sf$ | 5 Obs. | Diff. = $0^\circ 52'$ } Excessively difficult. Distance = $59''.748$ | 3 Obs. | Diff. = $1''.202$ Observed on the meridian. Night very favourable. Mean Result. Position $33^\circ 58' sf$ (10 Obs.); Distance $59''.840$ (6 Obs.); Epoch 1825.61. There appears to have taken place a change of no less than $+5^\circ 21'$ in the angle of position of this star since 1782, which for a star of the 5th class is considerable; unless indeed from the extreme minuteness of the small star, errors of observation to a larger amount than usual be supposed. (H.) No. DCCVII. R. A. $18^h\ 51^m$; Decl. $13^\circ\ 23'N.$ 11 Aquilæ; Struve, 598; III. 32. Double; 7th and 11th magnitudes; small, decidedly blue. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = $28^\circ\ 10'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 1'$ } Extremely difficult. Distance = $19''.382$ | 5 Obs. | Diff. = $1''.136$ North following this, is a double star of the 4th class; but its stars are so extremely faint, that it is not measurable with this instrument. Passy; July 4, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $30^\circ\ 38'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 4'$ } Excessively difficult. Distance = $19''.934$ | 5 Obs. | Diff. = $0''.553$ The small star scarcely bears the least illumination. Observed on the meridian. Passy; July 19, 1825; Seven-feet Equatorial. 6th and 12th, or 13th magnitudes. Position = $29^\circ\ 35'\ sp$ | 5 Obs. | Diff. = $2^\circ\ 51'$. Extremely difficult. The small star is bluish, and becomes more distinct by a very slight illumination; yet it is so faint, that I can obtain no observations of distance. Night extremely clear, and stars on the meridian. Mean Result. Position $29^\circ\ 28'\ sp$ (15 Obs.) ; Epoch 1825.20; Distance $19''.658$ ; Epoch 1825.02. The measure of Sir W. H. in 1802 makes the angle of position of this star $31'\ 34'\ sp$, being only $2^\circ\ 6'$ different from the present. (H.) No. DCCVIII. R. A. $18^h\ 52^m$; Decl. $14^°\ 41' N.$ STRUVE, 599; II. 93. Double; 8th and 12th magnitudes; small, light blue. Passy; July 24, 1825: Seven-feet Equatorial. Position $= 15^°\ 54' np$ | 5 Obs. | Diff. $= 3^°\ 44'$ } Excessively difficult. Distance $= 6''.133$ | 5 Obs. | Diff. $= 0''.673$ } The small star is so extremely faint, and bears so feeble an illumination, that a little inaccuracy of the results may be suspected. Observed when on the meridian: stars very steady. Night remarkably favourable. Passy; July 25, 1825; Seven-feet Equatorial. 8th and 12th, or 13th magnitudes. Position $= 19^°\ 29' np$ | 5 Obs. | Diff. $= 6^°\ 55'$ . Excessively difficult. The small star is only visible by glimpses, and then is so extremely indistinct, that to procure measures of distance is impossible. Passy; July 27, 1825; Seven-feet Equatorial. 8th and 12th magnitudes Position $= 20^°\ 20' np$ | 5 Obs. | Diff. $= 4^°\ 10'$ } Excessively difficult. Distance $= 7''.155$ | 5 Obs. | Diff. $= 0''.360$ } The small star is pale blue, and is so very obscure, that the measures are exceedingly precarious. Night fine. Passy; July 28, 1825; Seven-feet Equatorial. 8½ and 12th magnitudes. Position $= 17^°\ 32' np$ | 5 Obs. | Diff. $= 3^°\ 42'$ } Excessively difficult. Distance $= 6''.744$ | 5 Obs. | Diff. $= 0''.649$ } The night being very favourable and the stars steady, I applied a power of 157 to procure these observations: little or no advantage however was derived from the change: the measures are so extremely difficult, that I have no confidence in the accuracy of this, or of any individual series; the mean however of all, is probably not very remote from the truth. No. DCCVIII. continued. Mean Result. Position $18^\circ 19' np$ (20 Obs); Distance $6''.677$ (15 Obs.); Epoch 1825.57. In 1783 the position was $16^\circ 0' np$, and in 1802 $16^\circ 46' np$, so that this star has undergone no change. The distance too is nearly as it was. (H.) No. DCCIX. R. A. $18^h 52^m$; Decl. $36^\circ 11' N$. Struve, 600; I. 58. Double; 8th and 12th magnitudes; small, pale blue. Passy; July 24, 1825; Seven-feet Equatorial. | Position = $20^\circ 2' np$ | 5 Obs. | Diff. = $3^\circ 30'$ } Excessively difficult. | Distance = $5''.556$ | 5 Obs. | Diff. = $0''.721$ } This star so much resembles the last measured double star (No. 708), that on observing it in the field of the telescope, I thought I had perhaps neglected to alter the direction of the instrument. The small star bears but the most feeble illumination; and although the night is in every respect favourable for delicate observations, still the results must be regarded with some distrust. Passy; July 27, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. | Position = $20^\circ 41' np$ | 5 Obs. | Diff. = $6^\circ 11'$ } Excessively difficult. | Distance = $5''.400$ | 5 Obs. | Diff. = $0''.192$ } Observed when 15 minutes east of the meridian. Night very fine; but the small star will not bear any illumination. Measures of precarious accuracy. Mean Result. Position $20^\circ 21' np$; Distance $5''.478$; Epoch 1825.57. In 1783 (1783.21) the angle of position was $13^\circ 0' np$. Thus in 42.36 years $+7^\circ 21'$ have been described, being at the rate of $+0''.173$ per annum. (H.) MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCX. R. A. $18^h\ 57^m$; Decl. $16^\circ\ 33'$ S. Nova; Double; 6th and 10th magnitudes; small, light blue. Passy; July 13, 1825; Seven-feet Equatorial. Position $= 85^\circ\ 18'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 57'$ } Very difficult. Distance $= 7''.088$ | 5 Obs. | Diff. = $0''.673$ Observed on the meridian. Night very favourable; but the small star bears only the most feeble illumination. Passy; July 15, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position $= 85^\circ\ 32'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 40'$ } Extremely difficult. Distance $= 7''.021$ | 5 Obs. | Diff. = $0''.384$ Observed on the meridian. Stars very unsteady: the small one is light blue, and bears but a very slight illumination. Mean Result. Position $85^\circ\ 25'\ nf$; Distance $7''.054$; Epoch $1825.54$. No. DCCXI. R. A. $18^h\ 57^m$; Decl. $27^\circ\ 4'$ S. Nova; Double; 8th and 10th, or 11th magnitudes; small, blue. Passy; July 13, 1825; Seven-feet Equatorial. Position $= 35^\circ\ 38'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 7'$ } Very difficult. Distance $= 44''.375$ | 5 Obs. | Diff. = $1''.154$ Observed when 10 minutes east of the meridian. Night very favourable, but the small star does not bear a good illumination. Passy; July 15, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position $= 33^\circ\ 26'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 35'$ } Excessively difficult. Distance $= 45''.996$ | 5 Obs. | Diff. = $0''.889$ Stars tolerably steady; but the small one will bear only the most feeble illumination. Night favourable. No. DCCXI. continued. Passy; July 19, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Distance = $44''.952$ | 5 Obs. | Diff. = $0''.697$. Excessively difficult. Observed with 157: the small star became invisible when 181 was employed. Night fine; but measures very suspicious, and must not be received to the exclusion of either set previously taken. Mean Result. Position $34^\circ 32' sf$ (10 Obs.); Epoch 1825.53; Distance $45''.108$ (15 Obs.); Epoch 1825.54. No. DCCXII. R. A. $18^h 58^m$; Decl. $35^\circ 32' N.$ Struve, 605; I. 59. Double; $9\frac{1}{4}$ and $9\frac{1}{2}$ magnitudes; both white. Passy; July 28, 1825; Seven-feet Equatorial. Position = $77^\circ 51' sp$ | 6 Obs. | Diff. = $2^\circ 29'$ } Very steady. Distance = $2''.570$ | 5 Obs. | Diff. = $0''.288$ Observed when half an hour east of the meridian; measures not difficult; the stars bear a very tolerable illumination. Passy; July 29, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $77^\circ 20' sp$ | 6 Obs. | Diff. = $6^\circ 7'$ } Difficult. Distance = $2''.782$ | 5 Obs. | Diff. = $0''.288$ Observed on the meridian; stars neither steady nor neatly defined; the smaller is faint, but of the same colour as the larger. Passy; July 31, 1825; Seven-feet Equatorial. $9\frac{1}{4}$ and $9\frac{1}{2}$ magnitudes. Position = $75^\circ 41' sp$ | 11 Obs. | Diff. = $4^\circ 0'$ } Rather difficult. Distance = $2''.739$ | 5 Obs. | Diff. = $0''.336$ Stars on the meridian and tolerably steady; but the smaller one is indistinct. Mr. South's observations of the apparent distances No. DCCXII. continued. Passy; August 1, 1825; Seven-feet Equatorial. 9½ and 9¾ magnitudes. Position = $76°\ 19'\ sp$ | 11 Obs. | Diff. = $3°\ 46'$ } Tolerably easy. Distance = $2''.710$ | 5 Obs. | Diff. = $0''.288$ } Observed on the meridian; stars steady, and well defined. Mean Result. Position $76°\ 34'\ sp$ (34 Obs.) ; Distance $2''.700$ (20 Obs.); Epoch 1825.58. In 1783 the position was $75°\ o'\ sp$, the interval of the discs 1 diameter. No change therefore has happened to this star. (H.) No. DCCXIII. R. A. $18^h\ 59^m$; Decl. $75°\ 33' N.$ 233 (Bode) Draconis; Struve, 606; Hist. Cæl. 360. Double; 7½ and 8th magnitudes. Blackman-street; June 26, 1824; Five-feet Equatorial. Position = $52°\ 59'\ sp$ | 5 Obs. | Diff. = $1°\ 36'$ } Unsteady. Distance = $6''.799$ | 5 Obs. | Diff. = $0''.537$ } Passy; July 14, 1825; Seven-feet Equatorial. 7½ and 8th magnitudes. Position = $50°\ 29'\ sp$ | 5 Obs. | Diff. = $0°\ 51'$ } Very steady. Distance = $6''.494$ | 5 Obs. | Diff. = $0''.384$ } Passy; July 16, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = $53°\ 21'\ sp$ | 5 Obs. | Diff. = $1°\ 35'$ } Steady. Distance = $6''.354$ | 5 Obs. | Diff. = $0''.649$ } The small star occasionally very faint. Mean Result. Position $52°\ 16'\ sp$ (15 Obs.) ; Distance $6''.549$ (15 Obs.); Epoch 1825.18. and positions of 458 double and triple stars, &c. No. D CCXIV. R. A. $19^h\ 2^m$; Decl. $34^\circ\ 28'$ N. Nova; Double; $8\frac{1}{2}$ and 10th magnitudes. Passy; June 9, 1825; Seven-feet Equatorial. Position = $1^\circ\ 39'\ np$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Very difficult. Distance = $12''.861$ | 5 Obs. | Diff. = $0''.673$ } After the measures were concluded, the position wire was placed at zero, and the small star was decidedly in the north preceding quadrant. Passy; June 29, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $1^\circ\ 59'\ np$ | 5 Obs. | Diff. = $1^\circ\ 2'$ } Very difficult. Distance = $13''.265$ | 5 Obs. | Diff. = $0''.505$ } The small star is decidedly light blue, and does not bear a good illumination. Mean Result. Position $1^\circ\ 49'\ np$; Distance $13''.063$; Epoch $1825.47$. No. D CCXV. R.A. $19^h\ 8^m$; Decl. $16^\circ\ 15'$ S. Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; July 14, 1825; Seven-feet Equatorial. Position = $74^\circ\ 42'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 58'$ } Very steady. Distance = $8''.932$ | 5 Obs. | Diff. = $0''.456$ } Observed on the meridian. About 39 seconds to the north of this star, and following it about 26 seconds of time, will be found another double star. Passy; July 15, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $74^\circ\ 11'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 33'$ } Unsteady. Distance = $9''.401$ | 5 Obs. | Diff. = $0''.505$ } Mr. South's observations of the apparent distances No. DCCXV. continued. Passy; August 12, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = $74^\circ 47' nf$ | 5 Obs. | Diff. = $0^\circ 54'$ } Unsteady. Distance = $9''.195$ | 5 Obs. | Diff. = $0''.841$ } Mean Result. Position $74^\circ 33' nf$ (15 Obs.); Distance $9''.176$ (15 Obs.); Epoch 1825.56. No. DCCXVI. R. A. $19^h 8^m$; Decl. $16^\circ 14'$ S. Nova; Double; 10th and $10\frac{1}{2}$ magnitudes; it is the star alluded to, in the observations of No. DCCXV. Passy; July 14, 1825; Seven-feet Equatorial. Position = $69^\circ 49' sp$ | 5 Obs. | Diff. = $1^\circ 35'$ } Excessively difficult. Distance = $6''.153$ | 5 Obs. | Diff. = $0''.721$ } These are pale blue stars, and do not bear any illumination. Observed when 25 minutes west of the meridian, and the measures are of doubtful accuracy. Passy; July 19, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position $71^\circ 40' sp$ | 5 Obs. | Diff. = $2^\circ 15'$ } Excessively difficult. Distance $6''.419$ | 5 Obs. | Diff. = $0''.432$ } These stars are of a pale blue colour, and scarcely bear the least illumination. Observed when 10 minutes west of the meridian. Passy; August 12, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position = $71^\circ 3' sp$ | 5 Obs. | Diff. = $2^\circ 10'$. Excessively difficult. These stars are pale blue, and bear but the most feeble illumination. Observed on the meridian. Mean Result. Position $70^\circ 51' sp$ (15 Obs.); Epoch 1825.56; Distance $6''.286$ (10 Obs.); Epoch 1825.54. No. DCCXVII. R. A. 19ʰ 11ᵐ; Decl. 12° 1′ N. 28 Aquilæ; STRUVE, 618; V. 34. Double; 6th and 12th magnitudes; small, decidedly blue, and bears a tolerably good illumination. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = 84° 31′ sf | 5 Obs. | Diff. = 2° 11′ } Distance = 59″.422 | 5 Obs. | Diff. = 0″.758 } Passy; July 20, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 85° 41′ sf | 5 Obs. | Diff. = 1° 21′ } Distance = 59″.139 | 5 Obs. | Diff. = 1″.322 } Unsteady. The small star is blue, and bears a good illumination. Observed on the meridian. Mean Result. Position 85° 6′ sf; Distance 59″.280; Epoch 1825.04. Sir W. Herschel has no measures of this star. (H.) No. DCCXVIII. R. A. 19ʰ 25ᵐ; Decl. 27° 54′ N. STRUVE, 624; II. 99. Double; 8th and 12th magnitudes. Passy; September 27, 1824; Seven-feet Equatorial. Position = 87° 18′ nf | 5 Obs. | Diff. = 2° 35′ } Excessively difficult. Distance = 8″.005 | 5 Obs. | Diff. = 2″.115 } The small star scarcely bears the least illumination. Night fine. Passy; July 19, 1825; Seven-feet Equatorial. Position = 85° 35′ nf | 5 Obs. | Diff. = 2° 5′ } Excessively difficult. Distance = 6″.761 | 5 Obs. | Diff. = 0″.841 } The small star is blue, and is so extremely obscure, that the results are somewhat suspicious. Night favourable. Passy; July 31, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 85° 22′ nf | 5 Obs. | Diff. = 1° 52′ } Extremely difficult. Distance = 5″.908 | 5 Obs. | Diff. = 0″.288 } Observed on the meridian: the small star is light blue, and bears a very feeble illumination. Night very fine. Mr. South's observations of the apparent distances No. DCCXVIII. continued. Passy; August 1, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $84^\circ 17' nf$ | 5 Obs. | Diff. = $1^\circ 35'$ } Excessively difficult. Distance = $6''.686$ | 5 Obs. | Diff. = $0''.481$ } Stars tolerably steady, and on the meridian. Night fine. Mean Result. Position $85^\circ 38' nf$ (20 Obs.); Distance $6''.840$ (20 Obs.); Epoch 1825.36. The angle in 1783 was $87^\circ 48' nf$, differing only $2^\circ 10'$ from the present. Of course no change can be concluded. (H.) No. DCCXIX. R. A. $19^h 25^m$; Decl. $36^\circ 21'$ N. Nova; Triple; A of the 9th, B of the 10th, and C of the 9th magnitudes. Measures of A B. Passy; July 24, 1825; Seven-feet Equatorial. Position = $32^\circ 36' nf$ | 5 Obs. | Diff. = $3^\circ 52'$ } Extremely difficult. Distance = $6''.311$ | 5 Obs. | Diff. = $0''.649$ } Night very favourable; stars very steady; but the smaller one is faint. Observed on the meridian. Passy; July 27, 1825; Seven-feet Equatorial. Position = $34^\circ 49' nf$ | 5 Obs. | Diff. = $2^\circ 12'$ } Very difficult. Distance = $6''.280$ | 5 Obs. | Diff. = $0''.673$ } The small star is indistinct: the night very fine. Passy; July 28, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $32^\circ 55' nf$ | 5 Obs. | Diff. = $2^\circ 1'$. Very difficult. Stars very steady, but the small one scarcely bears any illumination. No. DCCXIX. continued. Measures of A C. Passy; July 24, 1825; Seven-feet Equatorial. Position = $24^\circ 38' nf$ or $sp$ | 5 Obs. | Diff. = $1^\circ 13'$ } Satisfactory. Distance = $53''.169$ | 5 Obs. | Diff. = $0''.553$ } By directing the eye to another part of the field, I can suspect the star C to be double; if so, its small star is more minute than the small one of $\alpha$ Lyrae; is south preceding, and is rather nearer to C, than is B to A. Night remarkably fine; stars very steady. Passy; July 27, 1825; Seven-feet Equatorial. Position = $24^\circ 54' nf$ or $sp$ | 5 Obs. | Diff. = $2^\circ 28'$ } Very steady. Distance = $53''.287$ | 5 Obs. | Diff. = $0''.529$ } Each star of the 9th or 9½ magnitude, but occasionally indistinct. Mean Result. of A B. Position $33^\circ 27' nf$ (15 Obs.); Distance $6''.295$ (10 Obs.); of A C. Position $24^\circ 46' nf$; Distance $53''.228$ ; Epoch 1825.57. No. DCCXX. R. A. $19^h 27^m$; Decl. $10^\circ 33'$ S. STRUVE, 625; I. 13; Double; 8½ and 12th magnitudes. Passy; July 18, 1825; Seven-feet Equatorial. Position = $44^\circ 0' np$ | 5 Obs. | Diff. = $4^\circ 41'$ } Very difficult. Distance = $4''.135$ | 5 Obs. | Diff. = $0''.360$ } The small star is light blue, and bears only a very feeble illumination. Night clear, but the stars of low altitude are very unsteady. Passy; July 28, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 12th magnitudes. Position = $46^\circ 23' np$ | 5 Obs. | Diff. = $3^\circ 46'$ } Excessively difficult. Distance = $4''.570$ | 5 Obs. | Diff. = $0''.360$ } The night is very favourable for difficult observations; but although the stars are very steady, yet the measures are so extremely difficult, that I fear they merit but little confidence. Sir W. Herschel having described it as a triple star, I applied a power of 413, but no third star could be even suspected. MDCCCXXVI. h h Mr. South's observations of the apparent distances No. DCCXX. continued. Passy; August 10, 1825; Seven-feet Equatorial. 8½ and 11th magnitudes. Position = $47^\circ 36' np$ | 5 Obs. | Diff. = $4^\circ 35'$ } Excessively difficult. Distance = $4''.166$ | 5 Obs. | Diff. = $0''.841$ } Observed on the meridian. Stars steady, yet the measures are unsatisfactory: the small one is pale blue, and does not bear a good illumination. Passy; August 20, 1825; Seven-feet Equatorial. 8½ and 11th magnitudes. Position = $46^\circ 14' np$ | 5 Obs. | Diff. = $4^\circ 3'$ } Excessively difficult. Distance = $5''.075$ | 5 Obs. | Diff. = $0''.745$ } Observed on the meridian; night favourable; small star blue, and scarcely bears any illumination. Mean Result. Position $46^\circ 3' np$ (20 Obs.); Distance $4''.488$ (20 Obs.); Epoch 1825.59. Sir W. Herschel's measures of this star stand as follows: 1782.77 -- - $37^\circ 15' np$. Mean of two measures. 1802.76 -- - $44^\circ 45' np$. This star then appears to be subject to a slow motion, amounting to about $+0''.148$ per annum; but the data are too precarious to speak with certainty. (H.) No. DCCXXI. R. A. $19^h 29^m$; Decl. $16^\circ 4' N$. ε Sagittæ; Struve, 628; VI. 26. Double; 5th and 9th, or 10th magnitudes; small, blue. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = $8^\circ 56' nf$ | 5 Obs. | Diff. = $1^\circ 15'$ } Steady. Distance = $1' 31''.541$ | 5 Obs. | Diff. = $0''.569$ } No. DCCXXI. continued. Passy; July 15, 1825; Seven-feet Equatorial. 5th and 9th magnitudes. Position = $8^\circ 58' nf$ | 5 Obs. | Diff. = $0^\circ 33'$ } Tolerably steady. Distance = $1' 32''.286$ | 5 Obs. | Diff. = $0''.625$ } Mean Result. Position $8^\circ 57' nf$; Distance $1' 31''.913$; Epoch 1825.03. This star affords an instance of very exact coincidence of measures with those of Sir W. Herschel in 1782, which are $8^\circ 32' nf$ for the position, and for the distance $1' 31''.9$ "extremely exact." (H.) No. DCCXXII. R.A. $19^h 29^m$; Decl. $17^\circ 19' S$. Struve, 627; Hist. Cæl. 116. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; July 16, 1825; Seven-feet Equatorial. Position = $33^\circ 1' sp$ | 5 Obs. | Diff. = $1^\circ 48'$ } Extremely unsteady. Distance = $10''.861$ | 5 Obs. | Diff. = $0''.120$ } Observed on the meridian. Passy; July 18, 1825; Seven-feet Equatorial. $8\frac{1}{4}$ and $8\frac{1}{2}$ magnitudes. Position = $32^\circ 30' sp$ | 5 Obs. | Diff. = $0^\circ 57'$ } Extremely unsteady. Distance = $10''.478$ | 5 Obs. | Diff. = $0''.745$ } Observed on the meridian. Mean Result. Position $32^\circ 45' sp$; Distance $10''.669$; Epoch 1825.54. Mr. South's observations of the apparent distances No. DCCXXIII. R. A. $19^h\ 36^m$; Decl. $10^\circ\ 21'N.$ Struve, 632; I. 91. Double; $8\frac{1}{2}$ and 11th magnitudes. Passy; July 18, 1825; Seven-feet Equatorial. Position = $6^\circ\ 28'\ np$ | 5 Obs. | Diff. = $5^\circ\ 44'$ } On the meridian. Distance = $3''.770$ | 5 Obs. | Diff. = $0''.336$ The small star is decidedly light blue, and is rendered rather more distinct by slight illumination; under however sufficient to show the wires of the micrometer pleasantly, it becomes invisible: the measures are excessively difficult, and some degree of suspicion attaches to the results. Night remarkably clear, but the stars are not steady. Passy; July 28, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $6^\circ\ 26'\ np$ | 5 Obs. | Diff. = $3^\circ\ 20'$ } 20 minutes east of the Distance = $4''.219$ | 5 Obs. | Diff. = $0''.360$ } meridian. Measures excessively difficult: stars very steady; the small one is blue. Mean Result. Position $6^\circ\ 27'\ np$; Distance $3''.994$; Epoch $1825.56$. Sir W. Herschel's measures are—1783, Position $8^\circ\ 18'\ np$, and 1802, $12^\circ\ 23'\ np$. These, discordant as they are with the present measure and with each other, yet afford somewhat of a presumption of a very slow change of position in the direction $np\ sf$ or retrograde. (H.) No. DCCXXIV. R. A. $19^h\ 39^m$; Decl. $20^\circ\ 30'N.$ Nova; Double; 9th and 11th, or 12th magnitudes. Passy; August 17, 1825; Seven-feet Equatorial. Position = $6^\circ\ 45'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 30'$ } Excessively difficult. Distance = $4''.871$ | 5 Obs. | Diff. = $0''.553$ The small star is light blue, and becomes more distinct by a slight illumination; yet the measures are so excessively difficult, that it will be useless to attempt observing it, except under the most favourable circumstances. The present is a night peculiarly fine, and the stars are remarkably steady and well defined. No. DCCXXIV. continued. Passy; August 20, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $6^\circ 24' sp$ | 5 Obs. | Diff. = $2^\circ 53'$ } Excessively difficult. Distance = $5''.374$ | 5 Obs. | Diff. = $0''.553$ This star is also double of the 5th class. By directing the eye to another part of the field, a star of the 15th or 20th magnitude may be perceived almost directly preceding. No measures of it however can be obtained with this instrument; yet the night is favourable, and the observations are made on the meridian. Mean Result. Position $6^\circ 34' sp$; Distance $5''.122$; Epoch 1825.63. No. DCCXXV. R. A. $19^\text{h} 39^\text{m}$; Decl. $34^\circ 37'$ N. STRUVE, 638; V. 137. Double; 7th and 10th magnitudes; small, decidedly blue, and bears a very good illumination. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = $61^\circ 2' nf$ | 5 Obs. | Diff. = $1^\circ 14'$ } Unsteady. Distance = $39''.127$ | 5 Obs. | Diff. = $0''.916$ Passy; July 19, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = $60^\circ 37' nf$ | 5 Obs. | Diff. = $1^\circ 8'$ } Steady. Distance = $38''.398$ | 5 Obs. | Diff. = $1''.010$ Passy; July 31, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = $60^\circ 47' nf$ | 5 Obs. | Diff. = $0^\circ 28'$ } Very satisfactory. Distance = $38''.709$ | 5 Obs. | Diff. = $0''.336$ Mean Result. Position $60^\circ 49' nf$ (15 Obs.) ; Distance $38''.745$ (15 Obs.); Epoch 1825.22. The position in 1783 was $57^\circ 3' nf$, differing only $3^\circ 46'$ from the present angle. There is an apparent increase of distance to the amount of $+3''.73$ since that epoch; but this is very precarious. (H) Mr. South's observations of the apparent distances No. DCCXXVI. R. A. 19h 40m; Decl. 32° 27' N. Nova; Double; 7th and 9th magnitudes. Passy; July 24, 1825; Seven-feet Equatorial. Position = 63° 23' sp | 5 Obs. | Diff. = 0° 56' } Satisfactory. Distance = 33".227 | 5 Obs. | Diff. = 0".649 } The small star is blue, and bears a very good illumination. Night very favourable; stars remarkably steady. Passy; July 25, 1825; Seven-feet Equatorial. 7th and 9½ magnitudes. Position = 63° 37' sp | 5 Obs. | Diff. = 1° 35' } Unsteady. Distance = 33".662 | 5 Obs. | Diff. = 0".913 } Observed on the meridian: the small star is blue. Mean Result. Position 63° 30 'sp; Distance 33".444; Epoch 1825.56. No. DCCXXVII. R. A. 19h 43m; Decl. 0° 2' N. STRUVE, 644; II. 95. Double; 9½ and 10th magnitudes. Passy; September 24, 1824; Seven-feet Equatorial. Position = 26° 53' np | 5 Obs. | Diff. = 1° 38' } Very difficult. Distance = 5".472 | 5 Obs. | Diff. = 0".793 } The dew collects so rapidly on the object-glass, although a tube of pasteboard projects 12 inches beyond the object-end of the telescope, that to see these stars it is absolutely necessary to wipe it between each measure; but the stars are well defined, and are unusually steady. Passy; July 20, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 26° 31' np | 5 Obs. | Diff. = 1° 35' } Extremely difficult. Distance = 5".703 | 5 Obs. | Diff. = 0".793 } These stars are of a pale blue colour, and neither bear illumination nor magnifying power. Observed on the meridian. and positions of 458 double and triple stars, &c. No. DCCXXVII. continued. Mean Result. Position $26^\circ 42' np$; Distance $5''.587$; Epoch 1825.14. The measures of 1783 and 1802 give $29^\circ 3' np$, and $30^\circ 2' np$ respectively for the angles of position. The estimations in diameters of the distance correspond to about 5 or $6''$ central distance. This star therefore has not varied sensibly. (H.) No. DCCXXVIII. R. A. $19^h 43^m$; Decl. $43^\circ 55'$ N. STRUVE, 643; III. 112. Double; 8th and $8\frac{1}{2}$ magnitudes. Blackman-street; June 28, 1824; Five-feet Equatorial. | Position | Diff. | |----------|-------| | $69^\circ 42' sf$ | $1^\circ 45'$ South. | | $69^\circ 45' sf$ | $2^\circ 34'$ Mr. Richardson. | | Distance = $10''.789$ | $0''.916$ South. | The night is become so bad, no more observations can be gotten. Passy; July 15, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $8\frac{3}{4}$ magnitudes. | Position | Diff. | |----------|-------| | $71^\circ 2' sf$ | $1^\circ 0'$ Very steady. | | Distance = $10''.454$ | $0''.264$ | Passy; August 31, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. | Position | Diff. | |----------|-------| | $71^\circ 2' sf$ | $1^\circ 21'$ Tolerably steady. | | Distance = $10''.101$ | $0''.360$ | Mean Result. Position $70^\circ 23' sf$ (20 Obs.); Distance $10''.415$ (15 Obs.); Epoch 1825.23. This position differs only $0^\circ 37'$ from that of 1783. The distances too present an exact correspondence, Sir W. Herschel's measure being $10''.140$. (H.) Mr. South's observations of the apparent distances No. DCCXXIX. R. A. $19^h\ 52^m$; Decl. $35^\circ\ 3'$ N. Nova; Triple; A of the 9th, B of the 10th, and C of the 6th magnitudes. Measures of A B. Passy; July 24, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $25^\circ\ 20'\ np$ | $4''.460$ | | 5 Obs. | Diff. = $1^\circ\ 48''$ | | 5 Obs. | Diff. = $0''.360$ | Extremely difficult. Observed on the meridian; stars very steady. Night fine. Passy; July 28, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $26^\circ\ 15'\ np$ | $4''.176$ | | 5 Obs. | Diff. = $2^\circ\ 22''$ | | 5 Obs. | Diff. = $0''.336$ | Very difficult. Observed on the meridian. Night very favourable. Measures of A C. Passy; July 24, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $34^\circ\ 16'\ sp$ | $4'\ 3''.859$ | | 2 Obs. | Diff. = $0^\circ\ 2'$ | | 2 Obs. | Diff. = $0''.240$ | Very steady. (C being to the south of A.) Passy; July 28, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $34^\circ\ 8'\ sp$ | $4'\ 1''.910$ | | 2 Obs. | Diff. = $0^\circ\ 11'$ | | 2 Obs. | Diff. = $0''.216$ | Night fine. (C being to the south of A.) Mean Result. of A B. Position $25^\circ\ 47'\ np$; Distance $4''.318$; of A C. $34^\circ\ 12'\ sp$; $4'\ 2''.884$; Epoch 1825.57. and positions of 458 double and triple stars, &c. No. DCCXXX. R. A. 19h 52m; Decl. 17° 7' N. Nova; n f χ Sagittæ; χ only seen single. Double; 7½ and 8th magnitudes. Blackman-street; July 13, 1824; Five-feet Equatorial. Position = 74° 20' nf | 5 Obs. | Diff. = 0° 32' Distance = 1' 55".642 | 5 Obs. | Diff. = 1".231 (Same date and Instrument.) Measures of χ with the brightest of this double star. Position = 77° 7' sp | 2 Obs. | Diff. = 0° 12' Distance = 5' 40".516 | 2 Obs. | Diff. = 0".284 (χ preceding to the south.) Passy; July 20, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = 74° 0' nf | 5 Obs. | Diff. = 0° 56' Distance = 1' 56".220 | 5 Obs. | Diff. = 0".721 Unsteady. Mean Result. Position 74° 10' nf; Distance 1' 55".931; Epoch 1825.04. Of χ Sagittæ and the brightest of this double star, Position 77° 7'; Distance 5' 40".516 (χ preceding to the south.) No. DCCXXXI. R. A. 19h 53m; Decl. 46° 54' N. Nova; Double; 9th and 9½ magnitudes. Passy; September 1, 1825; Seven-feet Equatorial. Position = 62° 51' nf | 6 Obs. | Diff. = 1° 35' Tolerably steady. Distance = 5".432 | 5 Obs. | Diff. = 0".432 Observed on the meridian. Night favourable. Passy; September 2, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 64° 11' nf | 6 Obs. | Diff. = 0° 32' Rather difficult. Distance = 6".191 | 5 Obs. | Diff. = 0".360 Observed on the meridian; stars very steady. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCXXXI. continued. Passy; September 4, 1825; Seven-feet Equatorial. Equal; each of the 11th magnitude. Position = $63^\circ 4'$ sp or nf | 6 Obs. | Diff. = $3^\circ 18'$ } Extremely difficult. Distance = $6''.400$ | 5 Obs. | Diff. = $0''.360$ } Night very hazy. Should these observations accord with one set already taken more than with the other, they must not be received to the exclusion of the discordant series. Passy; September 5, 1825; Seven-feet Equatorial. Equal; each of the 9th magnitude. Position = $64^\circ 3'$ sp or nf | 6 Obs. | Diff. = $1^\circ 37'$ } Difficult. Distance = $5''.494$ | 5 Obs. | Diff. = $0''.240$ } Observed on the meridian. Night hazy. Passy; September 6, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = $62^\circ 52'$ sp or nf | 6 Obs. | Diff. = $3^\circ 7'$. Very difficult. Stars tolerably steady; but the night is so extremely hazy, that no observations of distance can be procured. Passy; September 8, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Distance = $6''.282$ | 5 Obs. | Diff. = $0''.793$. Extremely difficult. Night so hazy, that the stars are only visible by glimpses. Passy; September 9, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Distance = $6''.150$ | 5 Obs. | Diff. = $0''.745$. Tolerably steady. Mean Result. Position $63^\circ 24'$ sp or nf (30 Obs.); Distance $5''.992$ (30 Obs.); Epoch 1825.68. and positions of 458 double and triple stars, &c. No. DCCXXXII. R. A. 20h 0m; Decl. 20° 36' N. Nova; Double; 9th and 11th, or 12th magnitudes. Passy; August 17, 1825; Seven-feet Equatorial. Position = 70° 37' np | 5 Obs. | Diff. = 2° 17' } Excessively difficult. Distance = 4''.317 | 5 Obs. | Diff. = 0''.456 The small star is pale blue, and is rendered more distinct by slight illumination; yet the measures are so excessively difficult, that it is useless to attempt observing it except under the most favourable circumstances, such as the present, when the stars generally are remarkably brilliant, and when they pass through the field of the telescope as steadily as possible. Observed 35 minutes east of the meridian. Passy; August 20, 1825; Seven-feet Equatorial. 8th and 11th or 12th magnitudes. Position = 71° 23' np | 5 Obs. | Diff. = 1° 56' } Excessively difficult. Distance = 4''.719 | 5 Obs. | Diff. = 0''.384 The small star, which is pale blue, bears but a very feeble illumination. Night favourable. Mean Result. Position 71° 0' np; Distance 4''.518; Epoch 1825.63. No. DCCXXXIII. R. A. 20h 2m; Decl. 34° 57' N. Nova; Double; 8½ and 9½ magnitudes; bear a good illumination. Passy; August 1, 1825; Seven-feet Equatorial. Position = 32° 24' np | 5 Obs. | Diff. = 2° 20' } Very steady. Distance = 5''.600 | 5 Obs. | Diff. = 0''.360 Observed on the meridian. Night very fine. Passy; August 9, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = 33° 12' np | 5 Obs. | Diff. = 1° 10' } Very difficult. Distance = 5''.111 | 5 Obs. | Diff. = 0''.505 Night hazy. Observed on the meridian. Mean Result. Position 32° 48' np; Distance 5''.355; Epoch 1825.59. Mr. South's observations of the apparent distances No. DCCXXXIV. R. A. 20h 2m; Decl. 16° 16' N. Struve, 659; II. 70. Double; 8th and 11th, or 12th magnitudes. Passy; August 20, 1825; Seven-feet Equatorial. Position = 74° 41' nf | 5 Obs. | Diff. = 1° 52' } Excessively difficult. Distance = 6''.682 | 5 Obs. | Diff. = 0''.360 } Night very favourable; but the small star will scarcely bear any illumination. Passy; August 21, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 76° 7' nf | 5 Obs. | Diff. = 0° 26' } Excessively difficult. Distance = 6''.528 | 5 Obs. | Diff. = 0''.481 } The small star, which is light blue, under a very slight illumination becomes invisible. Mean Result. Position 75° 24' nf; Distance 6''.605; Epoch 1825.64. There is no evidence of a change of position in this star. Its position in 1783 was 72° 57' nf. Its distance, estimated at 2 diameters between the discs, may correspond to a central distance of about 4, 5, or 6 seconds, according to the atmospheric or other circumstances at the time of observation. (H.) No. DCCXXXV. R. A. 20h 2m; Decl. 0° 40' S. Struve, 661; P. XX. 11, 12; V. 136. Double; 7½ and 8th magnitudes. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = 68° 7' sp | 5 Obs. | Diff. = 1° 40' } Distance = 54''.362 | 5 Obs. | Diff. = 0''.913 } Passy; November 3, 1824; Seven-feet Equatorial. 7½ and 8th magnitudes. Position = 67° 33' sp | 5 Obs. | Diff. = 1° 26' } Distance = 54''.768 | 5 Obs. | Diff. = 1''.443 } and positions of 458 double and triple stars, &c. No. DCCXXXV. continued. Passy; August 10, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = $67°\ 29'\ sp$ | 5 Obs. | Diff. = $0°\ 35'$ } Very steady. Distance = $54''.881$ | 5 Obs. | Diff. = $0''.962$ } Very steady. Observed on the meridian. Night hazy. Mean Result. Position $67°\ 43'\ sp$ (15 Obs.); Distance $54''.670$ (15 Obs.); Epoch 1825.01. The present result differs only $1°\ 55'$ in position from Sir W. Herschel's measure in 1783. (H.) No. DCCXXXVI. R.A. $20^h\ 2^m$; Decl. $20°\ 22'$ N. θ Sagittæ; STRUVE, 660: III. 24. Triple; A of the 6th, B of the 10th or 11th, and C of the 7th magnitudes. Measures of A B. Blackman-street; July 4, 1824; Five-feet Equatorial. Position = $58°\ 1'\ np$ | 5 Obs. | Diff. = $1°\ 47'$ } Very difficult. Distance = $11''.786$ | 5 Obs. | Diff. = $0''.721$ } Very difficult. Observed on the meridian; the small star does not bear a good illumination. Passy; November 3, 1824; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $58°\ 5'\ np$ | 5 Obs. | Diff. = $2°\ 48'$ } Very difficult. Distance = $12''.161$ | 5 Obs. | Diff. = $0''.625$ } Very difficult. Passy; August 12, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $57°\ 47'\ np$ | 5 Obs. | Diff. = $1°\ 16'$ } Unsteady. Distance = $11''.383$ | 5 Obs. | Diff. = $0''.577$ } Unsteady. Observed on the meridian; small star rather faint, but the measures are good. Mr. South's observations of the apparent distances No. DCCXXXVI. continued. Measures of A C. Blackman-street; July 4, 1824; Five-feet Equatorial. 6th and 7th magnitudes. Position = $43^\circ 16' sp$ | 5 Obs. | Diff. = $0^\circ 13'$ } Distance = $1' 10''.402$ | 5 Obs. | Diff. = $0''.432$ } Passy; November 3, 1824; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $43^\circ 39' sp$ | 5 Obs. | Diff. = $1^\circ 49'$ } Distance = $1' 9''.839$ | 5 Obs. | Diff. = $1''.635$ } Passy; August 12, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 8th magnitudes. Position = $42^\circ 39' sp$ | 5 Obs. | Diff. = $0^\circ 31'$ } Unsteady. Distance = $1' 10''.022$ | 5 Obs. | Diff. = $1''.755$ } Mean Result. of A B. Position $57^\circ 58' np$ (15 Obs.); Distance $11''.777$ (15 Obs.) of A C. Position $43^\circ 11' sp$ (15 Obs.); Distance $1' 10''.088$ (15 Obs.) Epoch 1824.98. Sir W. Herschel has no measures of the positions of these stars. The distance of A B he makes $11'' 4''$, agreeing pretty well with the present; while that of A C is stated by him at $59'' 49''$, a convincing proof of some cause of error in the micrometer when opened to considerable distances, and which has been already alluded to. What this cause of error may have been, whether parallax, or the resistance of a spiral steel spring straining the threads of the screw immoderately, it is useless now to enquire; but the whole tenor of the observations goes to prove, that distances less than 20 or 30'' are not affected by it. (H.) and positions of 458 double and triple stars, &c. No. DCCXXXVII. R. A. 20h 2m; Decl. 20° 25' N. Nova; Double; 8th and 10th magnitudes. Blackman-street; July 4, 1824; Five-feet Equatorial. Position = 39° 33' sf | 5 Obs. | Diff. = 2° 7' } Distance = 1' 41".290 | 5 Obs. | Diff. = 0".727 } Difficult. Passy; November 7, 1824; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 39° 15' sf | 5 Obs. | Diff. = 1° 30' } Distance = 1' 40".848 | 5 Obs. | Diff. = 3".474 } Very difficult. Small star blue, and very faint. Night hazy. Mean Result. Position 39° 24' sf; Distance 1' 41".069; Epoch 1824.68. No. DCCXXXVIII. R. A. 20h 4m; Decl. 33° 7' N. Struve, 663; Hist. Cæl. 297. Double; 8th and 9th magnitudes; small, blue. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = 22° 41' sf | 5 Obs. | Diff. = 0° 45' } Distance = 41".842 | 5 Obs. | Diff. = 0".569 } Passy; November 7, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = 21° 49' sf | 5 Obs. | Diff. = 0° 16' } Distance = 41".883 | 5 Obs. | Diff. = 1".082 } Mean Result. Position 22° 15' sf; Distance 41".862; Epoch 1824.69. Mr. South's observations of the apparent distances No. DCCXXXIX. R.A. $20^h\ 5^m$; Decl. $6^\circ\ 33'$ S. Nova; Double; 8th and 10th magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. Position = $39^\circ\ 22'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 8'$ } Rather difficult. Distance = $25''.128$ | 5 Obs. | Diff. = $0''.889$ } Observed on the meridian; stars tolerably steady. Passy; September 9, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $39^\circ\ 23'\ nf$ | 2 Obs. | Diff. = $0^\circ\ 54'$. Extremely difficult. Night is now so hazy, that the small star is no longer visible. Passy; September 10, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $39^\circ\ 31'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 9'$ } Extremely difficult. Distance = $25''.104$ | 5 Obs. | Diff. = $1''.370$ } Night hazy; the small star is blue. Mean Result. Position $39^\circ\ 26'\ nf$ (12 Obs.); Distance $25''.116$ (10 Obs.); Epoch 1825.69. No. DCCXL. R.A. $20^h\ 5^m$; Decl. $6^\circ\ 4'$ N. STRUVE, 664; P. XX. 43, 44. Double; equal; each of the 7th magnitude. Blackman-street; July 4, 1824; Five-feet Equatorial. Position = $77^\circ\ 9'\ sp$ or $nf$ | 5 Obs. | Diff. = $0^\circ\ 46'$ } Distance = $44''.070$ | 5 Obs. | Diff. = $1''.421$ } . . . Observed when $1^h\ 15'$ east of the meridian, but the stars are very steady. Passy; November 6, 1824; Seven-feet Equatorial. Equal; each of the 8th magnitude. Position = $77^\circ\ 13'\ sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ\ 43'$ } Distance = $43''.717$ | 5 Obs. | Diff. = $1''.178$ } . . . Mean Result. Position $77^\circ\ 11'\ sp$ or $nf$; Distance $43''.893$; Epoch 1824.67. and positions of 458 double and triple stars, &c. No. DCCXLII. R. A. 20h 7m; Decl. 21° 45' N. Nova; Triple; A 8th, B 8½, and C of the 12th magnitudes. Measures of A B. Passy; August 1, 1825; Seven-feet Equatorial. Position = 85° 42' nf | 5 Obs. | Diff. = 1° 37' } Tolerably steady. Distance = 7".033 | 5 Obs. | Diff. = 0".456 } Passy; August 9, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 86° 45' nf | 5 Obs. | Diff. = 1° 42' } Extremely unsteady. Distance = 6".265 | 5 Obs. | Diff. = 0".649 } Night hazy; stars 20 minutes west of the meridian when observed. Passy; September 2, 1825; Seven-feet Equatorial. 8½ and 9½ magnitudes. Distance = 6".465 | 5 Obs. | Diff. = 0".336. Very hazy. Passy; September 15, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Distance = 5".992 | 5 Obs. | Diff. = 0".649. Steady. Measures of A C. Passy; August 1, 1825; Seven-feet Equatorial. Position = 60° 15' sf | 5 Obs. | Diff. = 1° 55' } Very difficult. Distance = 58".156 | 5 Obs. | Diff. = 0".481 } 8th and 12th magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. 8½ and 12th magnitudes. Position = 60° 8' sf | 5 Obs. | Diff. = 1° 40' } Excessively difficult. Distance = 56".694 | 5 Obs. | Diff. = 0".913 } The small star bears but the slightest illumination, and the observations, particularly of distance, are a little suspicious. Night hazy. Passy; September 15, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Distance = 57".124 | 5 Obs. | Diff. = 0".817. Excessively difficult, MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCXLI. continued. Mean Result. of A. B. Position $86^\circ 13' nf$ (10 Obs.); Epoch 1825.59; Distance $6''.439$ (20 Obs.); Epoch 1825.64. of A C. Position $60^\circ 12' sf$ (10 Obs.); Epoch 1825.62; Distance $57''.325$ (15 Obs.); Epoch 1825.65. No. DCCXLII. R.A. $20^h 8^m$; Decl. $46^\circ 12' N.$ $\sigma$ Cygni; STRUVE, 667; VI. 10. Double; 5th and 8th magnitudes. Blackman-street; June 28, 1824; Five-feet Equatorial. | Position | Distance | |----------|----------| | $84^\circ 0' sf$ | $1' 46''.376$ | | 5 Obs. | 5 Obs. | Diff. = $0''.15$ Diff. = $1''.042$ Observed when 4 hours east of the meridian. Passy; November 3, 1824; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $83^\circ 47' sf$ | $1' 46''.410$ | | 5 Obs. | 5 Obs. | Diff. = $0''.35$ Diff. = $1''.250$ Mean Result. Position $83^\circ 53' sf$; Distance $1' 46''.393$; Epoch 1824.66. The position of 1781 is $87^\circ 14' sp$, differing $8^\circ 53'$ from the present; an extraordinary change for a star of the 6th class, and one so easy of measurement. In PIAZZI's catalogue, a proper motion of $-0''.03$ in R. A. and $+0''.18$ in declination is ascribed to the large star. This should carry the large star almost directly away from the small one (and indeed there is an apparent increase of $6''$ in the distance, could the earlier measure be relied on); but no sensible change of angle could thus arise. This star should be re-measured after a lapse of 20 or 30 years. (H.) and positions of 458 double and triple stars, &c. No. DCCXLIII. R. A. 20\textsuperscript{h} 10\textsuperscript{m}; Decl. 47° 10′ N. 32 Cygni; STRUVE, 669; VI. 32.* Double; 5th and 9th magnitudes. Blackman-street; June 28, 1824; Five-feet Equatorial. Position = 85° 34′ sf | 5 Obs. | Diff. = 0° 18′ } Distance = 3′ 28″.972 | 5 Obs. | Diff. = 0″.769 } Passy; November 3, 1824; Seven-feet Equatorial. 5th and 9th magnitudes. Position = 85° 34′ sf | 5 Obs. | Diff. = 0° 32′ } Distance = 3′ 28″.021 | 5 Obs. | Diff. = 1″.587 } Mean Result. Position 85° 34′ sf; Distance 3′ 28″.496; Epoch 1824.66. No. DCCXLIV. R. A. 20\textsuperscript{h} 11\textsuperscript{m}; Decl. 12° 28′ N. Nova; Double; 8\(\frac{1}{2}\) and 8\(\frac{3}{4}\) magnitudes. Passy; July 29, 1825; Seven-feet Equatorial. Position = 52° 50′ np | 5 Obs. | Diff. = 0° 57′ } Good measures. Distance = 28″.562 | 5 Obs. | Diff. = 0″.240 } Observed on the meridian; stars tolerably steady. Passy; July 31, 1825; Seven-feet Equatorial. 8\(\frac{1}{2}\) and 8\(\frac{3}{4}\) magnitudes. Position = 52° 51′ np | 5 Obs. | Diff. = 0° 46′ } Very satisfactory. Distance = 28″.205 | 5 Obs. | Diff. = 0″.288 } Mean Result. Position 52° 51′ np; Distance 28″.383; Epoch 1825.58. * So called in STRUVE’s Catalogue, but erroneously. VI. 32 is \(\lambda\) Cygni R. A. 20\textsuperscript{h} 40\textsuperscript{m}. (H.) Mr. South's observations of the apparent distances No. DCCXLV. R.A. $20^h\ 11^m$; Decl. $15^\circ\ 21'$ S. $\beta$ Capricorni; STRUVE, 670; VI. 28. Triple; A 5th, B of the 7th, and C of the 10th magnitudes. Measures of A B. Blackman-street: July 12, 1824; Five-feet Equatorial. | Position | Distance | |----------|----------| | $2^\circ\ 54'\ sp$ | $3'\ 24''.100$ | | 5 Obs. | 5 Obs. | | Diff. = $0^\circ\ 23'$ | Diff. = $0''.600$ | Passy; November 7, 1824; Seven-feet Equatorial. 6th and 8th magnitudes. | Position | Distance | |----------|----------| | $2^\circ\ 55'\ sp$ | $3'\ 23''.330$ | | 5 Obs. | 5 Obs. | | Diff. = $0^\circ\ 29'$ | Diff. = $1''.034$ | Observed when 1 hour west of the meridian. Measures of A C. Passy; November 9, 1824; Seven-feet Equatorial. 6th and 10th magnitudes. | Position | Distance | |----------|----------| | $43^\circ\ 27'\ sf$ | $3'\ 46''.862$ | | 5 Obs. | 5 Obs. | | Diff. = $0^\circ\ 25'$ | Diff. = $1''.803$ | Night hazy; small star is extremely faint. Passy; August 31, 1825; Seven-feet Equatorial. 5th and 11th magnitudes. | Position | Distance | |----------|----------| | $43^\circ\ 54'\ sf$ | $3'\ 46''.571$ | | 5 Obs. | 5 Obs. | | Diff. = $0^\circ\ 42'$ | Diff. = $0''.889$ | Observed on the meridian; small star is blue, and bears only a very slight illumination. Mean Result. of A B. Position $2^\circ\ 54'\ sp$; Distance $3'\ 23''.715$; Epoch 1824.69. of A C. Position $43^\circ\ 40'\ sf$; Distance $3'\ 46''.716$; Epoch 1825.35. Sir W. Herschel has given no measures of this star. (H.) and positions of 458 double and triple stars, &c. No. DCCXLVI. R. A. 20h 12'; Decl. 45° 4' N. Struve, 671; Hist. Cæl. 240. Double; 9½ and 10th magnitudes. Blackman-street; July 12, 1824; Five-feet Equatorial. Position = 43° 59' sp | 5 Obs. | Diff. = 2° 37' } Difficult. Distance = 9°.143 | 5 Obs. | Diff. = 0°.284 } Passy; November 7, 1824; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = 42° 58' sp | 5 Obs. | Diff. = 3° 12' } Excessively difficult. Distance = 8°.687 | 5 Obs. | Diff. = 2°.332 } The Night has become so foggy, that I can observe no longer. Mean Result. Position 43° 28' sp; Distance 8°.915; Epoch 1824.69. No. DCCXLVII. R. A. 20h 14m; Decl. 15° 50' N. Nova; Triple; A 9th, B 9½, and C of the 15th magnitudes. Measures of A B. Passy; August 1, 1825; Seven-feet Equatorial. Position = 62° 5' sf | 5 Obs. | Diff. = 1° 13' } Rather difficult. Distance = 31°.500 | 5 Obs. | Diff. = 1°.370 } The star B bears only an indifferent illumination. Passy; August 12, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 61° 16' sf | 5 Obs. | Diff. = 1° 1' } Difficult. Distance = 30°.477 | 5 Obs. | Diff. = 0°.577 } Neither of these stars will bear a good illumination. Passy; September 2, 1825; Seven-feet Equatorial. 9th and 10½ magnitudes. Distance = 30°.259 | 5 Obs. | Diff. = 0°.745. Extremely difficult. The star B bears but the slightest illumination. Mr. South's observations of the apparent distances No. DCCXLVII. continued. Measures of B C. Passy; August 1, 1825; Seven-feet Equatorial. When the eye is directed to another part of the field, the southern star (B) is seen also double; but its small star is so extremely faint, that to obtain any thing like measures of accuracy is impossible. Position = $17^\circ.0' \pm nf$; Distance = 13 seconds (by estimation). Passy; September 2 1825; Seven-feet Equatorial. The star B is certainly double of the 2d or 3d class; but its small star, which is $nf$, is so excessively obscure, that no observations of it can be procured. Night fine; stars steady. Mean Result. A B. Position $61^\circ 40' sf$ (10 Obs.); Epoch 1825.59; Distance $30''.745$ (15 Obs); Epoch 1825.62. B C. Position $17^\circ \pm nf$; Distance 13 seconds. (Each by estimation.) No. DCCXLVIII. R. A. $20^h 18^m$; Decl. $13^\circ 44' S.$ Struve, 675; Hist. Cæl. 176. Double; 9½ and 10th magnitudes; and bear but a very feeble illumination. Passy; September 17, 1824; Seven-feet Equatorial. Position = $23^\circ 39'nf$ | 5 Obs. | Diff. = $1^\circ 6'$ { On the meridian. Distance = $24''.743$ | 3 Obs. | Diff. = $1''.130$ { meridian. Night fine; stars steady; but the measures are extremely difficult. Passy; November 9, 1824; Seven-feet Equatorial. 9½ and 10th or 11th magnitudes. Position = $23^\circ 10' nf$ | 5 Obs. | Diff. = $1^\circ 5'$ { 35 minutes west of the Distance = $23''.659$ | 5 Obs. | Diff. = $1''.587$ { meridian. Measures extremely difficult; the small star scarcely bears any illumination. Passy; August 21, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Distance = $23''.008$ | 5 Obs. | Diff. = $0''.841$. Excessively difficult. Night fine; but neither star will bear sufficient illumination. Mean Result. Position $23^\circ 25' nf$; (10 Obs.); Epoch 1824.78; Distance $23''.803$; (15 Obs.) ; Epoch 1825.07. and positions of 458 double and triple stars, &c. No. DCCXLIX. R. A. $20^h\ 18^m$; Decl. $2^\circ\ 42'$ S. Struve, 674; P. XX. 140. Double; $6\frac{1}{2}$ and 7th magnitudes. Blackman-street; July 12, 1824; Five-feet Equatorial. | Position = $80^\circ\ 57'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 13'$ | | Distance = $59''.359$ | 5 Obs. | Diff. = $0''.288$ | Passy; November 6, 1824; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. | Position = $80^\circ\ 24'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 10'$ | | Distance = $1'0''.219$ | 5 Obs. | Diff. = $1''.707$ | Night not favourable. Passy; August 14, 1825; Seven-feet Equatorial. $6\frac{1}{2}$ and 7th magnitudes. | Position = $80^\circ\ 25'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 38'$ | | Distance = $1'0''.039$ | 3 Obs. | Diff. = $0''.240$ | Very steady. Observations very satisfactory. Mean Result. Position $80^\circ\ 35'\ sp$ (15 Obs.); Distance $59''.872$ (15 Obs.); Epoch 1825.00. No. DCCI. R. A. $20^h\ 22^m$; Decl. $25^\circ\ 48'$ N. Nova; Double; $8\frac{1}{2}$ and $8\frac{3}{4}$ magnitudes. Passy; July 29, 1825; Seven-feet Equatorial. | Position = $54^\circ\ 25'\ np$ | 5 Obs. | Diff. = $2^\circ\ 33'$ | | Distance = $1'6''.932$ | 5 Obs. | Diff. = $1''.034$ | Tolerably steady. Passy; July 31, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. | Position = $54^\circ\ 1'\ np$ | 5 Obs. | Diff. = $0^\circ\ 45'$ | | Distance = $1'6''.490$ | 5 Obs. | Diff. = $0''.468$ | Very steady. Mean Result. Position $54^\circ\ 13'\ np$; Distance $1'6''.711$; Epoch 1825.58. Mr. South's observations of the apparent distances No. DCCLI. R. A. 20h 22m; Decl. 10° 45' N. 15 (Bode) Delphini; Struve, 681; III. 16. Double; equal; each 7th magnitude. Passy; October 5, 1825; Seven-feet Equatorial. | Position = 13° 19' nf or sp | 5 Obs. | Diff. = 1° 13' } South. | | Distance = 14".662 | 5 Obs. | Diff. = 0".889 } | | Position = 13° 58' nf or sp | 5 Obs. | Diff. = 1° 15' } Capt. Beaufort. | | Distance = 14".782 | 5 Obs. | Diff. = 0".745 } | Stars tolerably steady. Night fine. Passy; October 7, 1825; Seven-feet Equatorial. Equal; each 7½ magnitude. | Position = 13° 12' nf or sp | 5 Obs. | Diff. = 0° 37' } South. | | Distance = 14".667 | 5 Obs. | Diff. = 0".673 } | | Position = 13° 49' nf or sp | 5 Obs. | Diff. = 1° 18' } Capt. Beaufort. | | Distance = 14".643 | 5 Obs. | Diff. = 0".456 } | Mean Result. Position 13° 35' nf or sp (20 Obs.); Distance 14".689 (20 Obs.); Epoch 1825.76. The observation of 1781 makes the position of this star 9° 42' sp, and its distance 12" 5" "exactly measured." The change in position is not considerable; but an increase of 2".6 in distance, or more than a sixth, is rather too much to be attributed to errors of observation. (H.) No. DCCLI. R. A. 20h 22m; Decl. 18° 48' N. Struve, 678; Hist. Cael. 537. Double; 7th and 7¼ magnitudes. Blackman-street; July 4, 1824; Five-feet Equatorial. | Position = 18° 31' np | 5 Obs. | Diff. = 0° 58' } Very steady. | | Distance = 1° 45".415 | 5 Obs. | Diff. = 0".408 } | Observed when 1h 45m west of the meridian, No. DCCLII. continued. Passy; November 6, 1824; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = $18^\circ 22' np$ | 5 Obs. | Diff. = $0^\circ 21'$ } Hazy. Distance = $1'' 44''.350$ | 5 Obs. | Diff. = $0''.817$ } Observed when 45 minutes west of the meridian. Passy; August 10, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Position = $19^\circ 2' np$ | 5 Obs. | Diff. = $0^\circ 28'$ } Very satisfactory. Distance = $1' 46''.365$ | 5 Obs. | Diff. = $1''.106$ } Mean Result. Position $18^\circ 38' np$ (15 Obs.); Distance $1' 45''.377$ (15 Obs.); Epoch 1824.98. No. DCCLIHI. R.A. $20^h 22^m$; Decl. $56^\circ 3' N.$ 37 (Bode) Cephei; Struve, 679. Double; 8th and 10th magnitudes; the small star is decidedly blue. Blackman-street; July 12, 1824; Five-feet Equatorial. Position = $29^\circ 59' sf$ | 5 Obs. | Diff. = $1^\circ 58'$ } Distance = $26''.545$ | 5 Obs. | Diff. = $1''.136$ } Passy; November 16, 1824; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $29^\circ 18' sf$ | 5 Obs. | Diff. = $1^\circ 17'$ } Distance = $26''.347$ | 5 Obs. | Diff. = $1''.755$ } Mean Result. Position $29^\circ 38' sf$; Distance $26''.446$; Epoch 1824.70. MDCCCXXVI. Mr. South's observations of the apparent distances No. D CCLIV. R. A. $20^h\ 23^m$; Decl. $25^\circ\ 53' N.$ Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; July 29, 1825: Seven-feet Equatorial. Position = $31^\circ\ 23'\ n\ p$ | 5 Obs. | Diff. = $1^\circ\ 34'$ | Rather difficult. Distance = $25''.686$ | 5 Obs. | Diff. = $1''.250$ Stars tolerably steady; but the small one does not bear a good illumination. Passy; July 31, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $31^\circ\ 6'\ n\ p$ | 5 Obs. | Diff. = $2^\circ\ 48'$ | Difficult. Distance = $25''.662$ | 5 Obs. | Diff. = $1''.082$ Stars steady; but the smaller one is faint. Mean Result. Position $31^\circ\ 14'\ n\ p$; Distance $25''.674$; Epoch 1825.58. No. D CCLV. R. A. $20^h\ 25^m$; Decl. $48^\circ\ 37' N.$ 210 (Bode) Cygni; Struve, 683. Double; 6th and 10th magnitudes; small, blue. Passy; September 24, 1824; Seven-feet Equatorial. Position = $8^\circ\ 21'\ n\ p$ | 5 Obs. | Diff. = $1^\circ\ 10'$ | Extremely difficult. Distance = $1'\ 1''.583$ | 5 Obs. | Diff. = $1''.563$ Another double star of the 4th class (7th and 15th magnitudes) follows it; but the small star is so extremely faint, that it is unmeasurable to-night, perhaps in consequence of the moisture precipitated on the object-glass, which exceeds anything I have as yet witnessed. Passy; November 16, 1824; Seven-feet Equatorial. Position = $9^\circ\ 3'\ n\ p$ | 3 Obs. | Diff. = $0^\circ\ 45'$ | Excessively difficult. No observations of distance can be procured; one half of the object-glass is rendered useless, by the interference of the transverse timber which connects the east and west sides of the observatory. Passy; August 31, 1825; Seven-feet Equatorial. 6th and 11th magnitudes. Position = $9^\circ\ 8'\ n\ p$ | 5 Obs. | Diff. = $0^\circ\ 48'$ | Excessively difficult. Distance = $1'\ 1''.191$ | 5 Obs. | Diff. = $1''.034$ The small star bears but a very slight illumination. No. D CCLV. continued. Mean Result. Position $8^\circ 49' np$ (13 Obs.); Epoch 1825.09; Distance $1' 1''.387$ (10 Obs.); Epoch 1825.19. There is some reason to suppose that Sir W. Herschel has erroneously called this star $\omega^3$ Cygni, which it certainly is not; $\omega^2$ as far as my instruments can inform me is single. No. D CCLVI. R. A. $20^h 26^m$; Decl. $48^\circ 37'$ N. $\omega^3$ Cygni; Struve, 684; IV. 24.* Double; 6th and 12th, or 15th magnitudes; the small star bears no illumination; it is the double star alluded to in the observations of 210 (Bode) Cygni, which star it follows a few seconds of time. Passy; September 27, 1824; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $46^\circ 45' np \pm$ | $55''.098 \pm$ | | Observations | Single measure. | |--------------|-----------------| | 2 | | Dif. = $2^\circ 33'$ The measures are so extremely difficult, that the results are I fear little better than guesses. 210 (Bode) Cygni is in the field; is more easily measured than this star; and, by very cautious estimation, the distance between the two stars of $\omega^3$ Cygni is less than that of the two stars of 210 (Bode) Cygni, by six or seven seconds. Passy; August 31, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. | Position | Distance | |----------|----------| | $49^\circ 5' np$ | $55''.929$ | | Observations | Diff. | |--------------|-------| | 5 | $0''.55'$ | | 5 | $1''.082$ | Excessively difficult. 210 (Bode) Cygni which I have just measured is difficult enough; it is however easy when compared with this. My confidence in the accuracy of these results is but little. Night at present tolerably favourable. * The star here measured is not IV. 24, in spite of the general agreement of their angles. The descriptions are totally at variance; and in the MS. there is a remark, "My 24th star in class IV. is miscalled; it should be Fl. 46$^{30}$ Cygni ($\omega^3$) adjacens, or ad 46 am Cygni;" $\omega^3$ Cygni is in fact IV. 23. (H). No. D CCLVI. continued. Passy; September 1, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = $48^\circ 58' np$ | 5 Obs. | Diff. = $1^\circ 17'$ Excessively difficult. Observed with 157; the small star was not visible with 181; measures of distance impracticable. Mean Result. (Rejecting the angles observed September 27, 1824,) Position $49^\circ 1' np$ (10 Obs.) ; Epoch 1825.58 ; Distance $55''.791$ (6 Obs.) ; Epoch 1825.20. No. D CCLVII. R. A. $20^h 26^m$ ; Decl. $27^\circ 31' N.$ Nova; Double; $9\frac{1}{2}$ and 11th magnitudes; small, bluish. Passy; August 17, 1825; Seven-feet Equatorial. Position $= 32^\circ 2' np$ | 5 Obs. | Diff. = $3^\circ 31'$ Excessively difficult. Distance $= 4''.510$ | 5 Obs. | Diff. = $0''.432$ The small star scarcely bears any illumination. Observed on the meridian. Night very fine; stars steady. Passy; August 20, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position $31^\circ 4' np$ | 5 Obs. | Diff. = $2^\circ 27'$ Excessively difficult. Distance $4''.426$ | 5 Obs. | Diff. = $0''.192$ The small star, which is light blue, bears but the most scanty illumination. Night tolerably favourable for delicate observations. Mean Result. Position $31^\circ 33' np$ ; Distance $4''.468$ ; Epoch 1825.63. and positions of 458 double and triple stars, &c. No. DCCLVIII. R. A. $20^h\ 27^m$; Decl. $13^\circ\ 21' S.$ STRUVE, 685; Hist. Cæl. 114. Double; 10th and 11th magnitudes; extremely faint, and scarcely bear any illumination. Passy; November 9, 1824; Seven-feet Equatorial. Position $= 71^\circ\ 33'\ sp$ | 5 Obs. | Diff. = $4^\circ\ 15'$ } Excessively difficult. Distance $= 10''.267$ | 5 Obs. | Diff. = $0''.721$ } Night unfavourable, and stars 40 minutes west of the meridian. Passy; November 24, 1824; Seven-feet Equatorial. 9th and 12th magnitudes. Position $= 75^\circ\ 51'\ sp$ | 5 Obs. | Diff. = $6^\circ\ 32'$. Excessively difficult. No observations of distance can be procured. Night not good, and the observations made, the stars being $\frac{1}{2}$ hour west of the meridian. Passy; August 23, 1825; Seven-feet Equatorial. 9th and 10th, or 11th magnitudes. Position $= 74^\circ\ 2'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 52'$ } Excessively difficult. Distance $= 10''.245$ | 5 Obs. | Diff. = $0''.529$ } Stars extremely faint, and under a slight illumination become invisible. Mean Result. Position $73^\circ\ 49'\ sp$ (15 Obs.); Epoch 1825.13; Distance $10''.256$ (10 Obs.); Epoch 1825.24. No. DCCLIIX. R. A. $20^h\ 28^m$; Decl. $14^\circ\ 8' N.$ STRUVE, 686; IV. 92. Triple; A of the 9th, B of the $9\frac{1}{4}$, and C of the 10th magnitudes. Measures of A. B. Passy; October 9, 1824; Seven-feet Equatorial. Position $= 20^\circ\ 25'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 34'$ } Distance $= 25''.272$ | 5 Obs. | Diff. = $1''.803$ } Passy; November 9, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{4}$ magnitudes. Position $= 19^\circ\ 31'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 20'$ } Very hazy. Distance $= 24''.895$ | 5 Obs. | Diff. = $1''.034$ } Mr. South's observations of the apparent distances No. D CCLIX. continued. Measures of A C. Passy; October 9, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $53^\circ 11' sp$ | 5 Obs. | Diff. = $1^\circ 3'$ } Distance = $54''.136$ | 5 Obs. | Diff. = $1''.082$ } Passy; October 14, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $52^\circ 40' sp$ | 5 Obs. | Diff. = $1^\circ 41'$ } SOUTH. Distance = $54''.203$ | 5 Obs. | Diff. = $1''.803$ } My friend Mr. Troughton, being on a visit to me at Passy, was so kind as to take the following observation this even- ing, October 14, 1824. Distance = $54''.558$ | 5 Obs. | Diff. = $3''.294$. Mr. Troughton. Mean Result. of A B. Position $19^\circ 58' sf$; Distance $25''.083$; Epoch 1824.81. of A C. Position $52^\circ 55' sp$ (10 Obs.); Distance $54''.299$ (15 Obs.); Epoch 1824.78. The position of A B here given differs only $1^\circ 31'$ from what it was in 1783, and the distance only $1''.2$. (H.) No. D CCLX. R. A. $20^h 34^m$; Decl. $12^\circ 6' N$. Struve, 690; Hist. Cæl. 106. Double; equal; each of the 9th magnitude. Blackman-street; July 13, 1824; Five-feet Equatorial. Position = $3^\circ 13' nf$ or $sp$ | 5 Obs. | Diff. = $1^\circ 24'$ } Difficult. Distance = $9''.096$ | 5 Obs. | Diff. = $0''.632$ } These stars do not bear a good illumination. Passy; November 6, 1824; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = $2^\circ 47' sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ 37'$ } Difficult. Distance = $9''.293$ | 5 Obs. | Diff. = $0''.937$ } Observed when 50 minutes west of the meridian; night very hazy. Mean Result. Position $3^\circ 0' nf$ or $sp$; Distance $9''.194$; Epoch 1824.68. and positions of 458 double and triple stars, &c. No. DCCLXI. R. A. $20^h\ 37^m$; Decl. $23^\circ\ 17'$ N. Nova; Double; 10th and $10\frac{1}{2}$ magnitudes. Passy; September 1, 1825; Seven-feet Equatorial. Position $=63^\circ\ 13'\ np$ | 5 Obs. | Diff. = $4^\circ\ 58'$ } Excessively difficult. Distance $=1'.935 \pm$ | 1 Obs. | Stars extremely unsteady and ill defined. The results are of doubtful accuracy. Passy; September 15, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position $=60^\circ\ 39'\ np$ | 5 Obs. | Diff. = $4^\circ\ 10'$ } Excessively difficult. Distance $=2''.072$ | 5 Obs. | Diff. = $0''.288$ } Observed with 181. Stars tolerably steady. Mean Result. Position $61^\circ\ 56'\ np$ (10 Obs.); Distance $2''.049$ (6 Obs.); Epoch 1825.69. No. DCCLXII. R. A. $20^h\ 37^m$; Decl. $30^\circ\ 4'$ N. 52 Cygni; STRUVE, 691; II. 25. Double; 6th and 10th magnitudes; small, blue. Passy; October 2, 1824; Seven-feet Equatorial. Position $=33^\circ\ 26'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 43'$ } Extremely difficult. Distance $=7''.127$ | 5 Obs. | Diff. = $0''.001$ } Several stars in the field. One double, of the 4th or 5th class, follows 52 Cygni a few seconds of time; but the attempt to measure it has been unsuccessful: it will not bear the slightest illumination. Night very fine. Passy; August 23, 1825; Seven-feet Equatorial. 8th and 10th, or 11th magnitudes. Position $=32^\circ\ 1'\ nf$ | 6 Obs. | Diff. = $1^\circ\ 55'$ } Extremely difficult. Distance $=7''.278$ | 5 Obs. | Diff. = $0''.432$ } Stars on the meridian, and very steady; the small one is light blue, and bears but a very feeble illumination. Mr. South's observations of the apparent distances No. D CCLXII. continued. Mean Result. Position $32^\circ 46' nf$ (11 Obs.); Distance $7''.202$ (10 Obs.); Epoch 1825.19. In 1781 this star was measured at $31^\circ 3' nf$. It therefore appears liable to no change of position. The distance is variously stated at $2\frac{1}{2}$, 3, and 4 diameters, according to atmospheric circumstances, power, &c. (H.) No. DCCLXIII. R. A. $20^h 38^m$; Decl. $18^\circ 51' S.$ Struve, 693; Hist. Cæl. 177. Double; $7\frac{1}{2}$ and 8th magnitudes. Passy; September 23, 1824; Seven-feet Equatorial. Position $= 25^\circ 23' np$ | 5 Obs. | Diff. = $1^\circ 3'$ } Tolerably steady. Distance $= 16''.785$ | 5 Obs. | Diff. = $0''.250$ } Observed on the meridian. Passy; November 6, 1824; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position $= 24^\circ 50' np$ | 5 Obs. | Diff. = $3^\circ 5'$ } Rather difficult. Distance $= 16''.713$ | 5 Obs. | Diff. = $1''.947$ } Night very hazy; stars faint. Mean Result. Position $25^\circ 6' np$; Distance $16''.749$; Epoch 1824.78. No. DCCLXIV. R. A. $20^h 38^m$; Decl. $15^\circ 14' N.$ Struve, 692; II. 66. Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; September 17, 1824; Seven-feet Equatorial. Position $= 83^\circ 47' np$ | 5 Obs. | Diff. = $2^\circ 4'$. Rather difficult. Passy; September 23, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position $= 83^\circ 47' np$ | 5 Obs. | Diff. = $0^\circ 42'$. Very difficult. Night very hazy. and positions of 458 double and triple stars, &c. No. DCCLXIV. continued. Passy; September 29, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $87^\circ 19' np$ | 5 Obs. | Diff. = $2^\circ 2'$ } Satisfactory. Distance = $5''.580$ | 5 Obs. | Diff. = $0''.793$ } Observed when $1\frac{1}{2}$ hour west of the meridian; stars most admirably defined, are remarkably steady, and bear a very good illumination. Night unusually fine. Passy; August 14, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $85^\circ 12' np$ | 5 Obs. | Diff. = $1^\circ 24'$ } Very difficult. Distance = $5''.222$ | 5 Obs. | Diff. = $0''.192$ } Distance = $4''.760$ | 5 Obs. | Diff. = $0''.649$. Difficult. Night hazy, but less so when the 2nd set of distances was procured. Passy; August 16, 1825; Seven-feet Equatorial. 8$\frac{1}{2}$ and 9th magnitudes. Position = $84^\circ 48' np$ | 5 Obs. | Diff. = $1^\circ 28'$ } Very steady. Distance = $4''.722$ | 5 Obs. | Diff. = $0''.649$ } Stars bear a very good illumination. Night favourable; observations satisfactory. Passy; August 23, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Distance = $4''.609$ | 5 Obs. | Diff. = $0''.456$. Tolerably steady. The distance, $5''.580$, taken September 29, 1824, is probably large; still as the observations were made under favourable circumstances, I cannot reconcile myself to their rejection. Mean Result. Position $84^\circ 59' np$ (25 Obs.); Epoch 1825.08; Distance $4''.979$ (25 Obs.); Epoch 1825.40. In 1783.33 the position was found to be $78^\circ 42' np$, so that an angle of $+6^\circ 17'$ seems to have been described since that epoch, or $+0^\circ.128$ per annum. This star then should be re-examined after an interval of 10 or 20 years, to ascertain whether the presumed motion be real, or not. (H.) MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCLXV. R. A. $20^h\ 40^m$; Decl. $35^\circ\ 50' N.$ λ Cygni; STRUVE, 696; VI. 32. Double; 5th and 12th magnitudes. Passy; September 27, 1824; Seven-feet Equatorial. Position = $14^\circ\ 4'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 35'$ } Very difficult. Distance = $1'\ 26''.677$ | 5 Obs. | Diff. = $0''.649$ } Small star bears but a very feeble illumination. Night fine. Passy; November 9, 1824; Seven-feet Equatorial. 5th and 12th magnitudes. Position = $14^\circ\ 29'\ s.f$ | 5 Obs. | Diff. = $1^\circ\ 46'$ } Extremely difficult. Distance = $1'\ 24''.130$ | 5 Obs. | Diff. = $1''.058$ } The small star is blue, and bears only the slightest illumination; $1\frac{1}{4}$ hour west of the meridian when observed. Passy; August 31, 1825; Seven-feet Equatorial. 5th and 11th, or 12th magnitudes. Position = $14^\circ\ 53'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 56'$ } Extremely difficult. Distance = $1'\ 25''.964$ | 5 Obs. | Diff. = $0''.529$ } Mean Result. Position $14^\circ\ 29'\ s.f$ (15 Obs.); Distance $1'\ 25''.590$ (15 Obs.); Epoch 1825.08. The angle remains within $1^\circ\ 47'$ what it was in 1781. (H.) No. DCCLXVI. R. A. $20^h\ 42^m$; Decl. $5^\circ\ 46' N.$ Nova; Double; 9th and $9\frac{1}{4}$ magnitudes. Passy; August 9, 1825; Seven-feet Equatorial. Position = $69^\circ\ 24'\ n.p$ | 5 Obs. | Diff. = $2^\circ\ 0'$ } Difficult. Distance = $3''.794$ | 5 Obs. | Diff. = $0''.529$ } Night hazy; the stars frequently are very indistinct. Passy; August 12, 1285; Seven-feet Equatorial. 9th and $9\frac{1}{4}$ magnitudes. Position = $69^\circ\ 38'\ n.p$ | 5 Obs. | Diff. = $1^\circ\ 30'$ } Very difficult. Distance = $4''.202$ | 5 Obs. | Diff. = $0''.288$ } Observed on the meridian; stars unsteady. Mean Result. Position $69^\circ\ 31'\ n.p$; Distance $3''.998$; Epoch 1825.61. No. DCCLXVII. R. A. 20\textsuperscript{h} 43\textsuperscript{m}; Decl. 51\textsuperscript{o} 17\textsuperscript{'} N. STRUVE, 698; II. 100. Double; 8th and 11th magnitudes. Passy; August 20, 1825; Seven-feet Equatorial. Position = $15^\circ 34'\ n.f.$ | 5 Obs. | Diff. = $2^\circ 28'$ } Excessively difficult. Distance = $4^\circ 575$ | 5 Obs. | Diff. = $0''.481$ Night very favourable; the small star scarcely bears any illumination. Observed when 35 minutes east of the meridian. Passy; August 21, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = $15^\circ 25'\ n.f.$ | 6 Obs. | Diff. = $1^\circ 30'$ } Excessively difficult. Distance = $4^\circ 907$ | 5 Obs. | Diff. = $0''.360$ The small star is light blue. Observed on the meridian. A small portion of the object-glass not employed, in consequence of the interference of the observatory timbers. Passy; September 1, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = $15^\circ 12'\ n.f.$ | 5 Obs. | Diff. = $4^\circ 27'$ } Excessively difficult. Distance = $3^\circ 744$ | 5 Obs. | Diff. = $0''.312$ A cloudless sky; but the stars are extremely unsteady and ill defined; added to these circumstances, a small portion of the object-glass (perhaps one-eighth) is rendered useless by the unfortunate situation of the timbers of the observatory. The observations of position agree well enough; but it is otherwise with those of distance. The night of August the 20th was much more favourable than either of the nights on which the star was subsequently measured; and as the mean of the distances procured on those nights will differ but little with that obtained on the 20th, if we take the three sets we shall probably not err much when we give as the Mean Result. Position $15^\circ 24'\ n.f.$ (16 Obs.) ; Distance $4''.409$ (15 Obs.); Epoch 1825.65. There appears not the least change of position in these stars, the angle here given differing no more than $0^\circ 27'$ from what it was in 1783. (H.) Mr. South's observations of the apparent distances No. DCCLXVIII. R.A. $20^h\ 44^m$; Decl. $6^\circ\ 40' N.$ Struve, 699; P. XX. 355. Double; $8\frac{1}{2}$ and 9th magnitudes; and do not bear so good an illumination, as their apparent magnitudes would induce one to expect. Blackman-street; July 15, 1824; Five-feet Equatorial. | Position | Distance | |----------|----------| | $54^\circ\ 45'\ sf$ | $40''.731$ | 5 Obs. Diff. = $0^\circ\ 25'$ 5 Obs. Diff. = $0''.537$ Observed when one hour east of the meridian. Same date and Instrument. Sth and $8\frac{1}{2}$ magnitudes. | Position | Distance | |----------|----------| | $54^\circ\ 43'\ sf$ | $40''.466$ | 5 Obs. Diff. = $1^\circ\ 14'$ 5 Obs. Diff. = $0''.727$ Observed when 10 minutes east of the meridian, and was re-measured this evening inadvertently. Mean Result. Position $54^\circ\ 44'\ sf$; Distance $40''.598$; Epoch 1824.54. No. DCCLXIX. R.A. $20^h\ 50^m$; Decl. $15^\circ\ 47' N.$ Nova; Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; August 9, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $14^\circ\ 8'\ sp$ | $14''.528$ | 5 Obs. Diff. = $0^\circ\ 46'$ 5 Obs. Diff. = $0''.240$ Rather difficult. Stars extremely unsteady. Night very unfavourable. A star of the 8th magnitude at some distance in the field, sf. Passy; August 10, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. | Position | Distance | |----------|----------| | $13^\circ\ 51'\ sp$ | $15''.198$ | 5 Obs. Diff. = $1^\circ\ 10'$ 5 Obs. Diff. = $0''.168$ Very difficult. Small star very faint. Night is become so hazy, that the observations are necessarily concluded; not a cloud visible. No. D CCLXIX. continued. Passy; August 12, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = $14°\ 7'\ sp$ | 5 Obs. | Diff. = $1°\ 7'$ } Very difficult. Distance = $15''.234$ | 5 Obs. | Diff. = $0''.312$ } The small star is light blue, and does not bear a very good illumination. Observed on the meridian, but the stars are very unsteady. Mean Result. Position $14°\ 2'\ sp$ (15 Obs.) ; Distance $14''.987$ (15 Obs.); Epoch 1825.61. No. D CCLXX. R. A. $20^h\ 53^m$; Decl. $49°\ 46' N.$ 280 (Bode) Cygni; Struve, 703; I. 97. Double; 9th and $9\frac{1}{4}$ magnitudes; small star light blue. Passy; August 14, 1825; Seven-feet Equatorial. Position = $58°\ 9'\ nf$ | 5 Obs. | Diff. = $2°\ 43'$ } Extremely difficult. Distance = $2''.226$ | 5 Obs. | Diff. = $0''.384$ } Observed with 181. The night is hazy, and the stars will not bear a higher power. Passy; August 16, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $60°\ 13'\ nf$ | 5 Obs. | Diff. = $3°\ 11'$ } Extremely difficult. Distance = $2''.366$ | 5 Obs. | Diff. = $0''.360$ } Stars very steady, but will not bear a deeper power than 181. Passy; September 1, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = $52°\ 36'\ nf$ | 5 Obs. | Diff. = $2°\ 48'$ } Excessively difficult. Distance = $2''.743$ | 5 Obs. | Diff. = $0''.432$ } Stars very unsteady, and ill defined; I cannot use a higher power than 181, which is inadequate to separate the stars from each other, so much as I could wish. Passy; September 5, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = $53°\ 2'\ nf$ | 5 Obs. | Diff. = $2°\ 43'$ } Excessively difficult. Distance = $2''.594$ | 5 Obs. | Diff. = $0''.168$ } Stars ill defined, and very unsteady. Night hazy. Observed with 181: a deeper power was tried, but without success. Mr. South's observations of the apparent distances No. D CCLXX. continued. Passy; September 28, 1825; Seven-feet Equatorial. Position = $53^\circ 3' nf$ | 5 Obs. | Diff. = $1^\circ 38'$ } South. Distance = $2''.351$ | 5 Obs. | Diff. = $0''.216$ } Capt. Beaufort. Position = $60^\circ 54' nf$ | 5 Obs. | Diff. = $6^\circ 0'$ } Mons. Gambart. Distance = $2''.414$ | 5 Obs. | Diff. = $0''.120$ } Mons. Gambart. The extreme obscurity of the small star precludes M. Gambart getting any observations of distance. The measures deemed by all observers, excessively difficult; night tolerably favourable, yet a higher power than 181 cannot be employed. The discordance between the position of this double star, as determined on different nights, is enormous; a circumstance much to be regretted, as it appears to have undergone a considerable change since Sir W. Herschel's observations. Mean Result. Position $57^\circ 9' nf$ (35 Obs.); Distance $2''.449$ (30 Obs.); Epoch 1825.66. The angle of $1783.73$ was $46^\circ 24' nf$. Hence it appears that in the interval of $41.93$ years no less an arc than $-10^\circ 45'$ has been described, giving a mean annual angular motion of $-0''.2564$. This star then well merits the attention of future observers. (H.) No. D CCLXXI. R. A. $20^h 55^m$; Decl. $6^\circ 30'$ S. Nova; Double; 6th and 11th magnitudes; small, pale blue. Passy; August 31, 1825; Seven-feet Equatorial. Position = $78^\circ 0' sp$ | 5 Obs. | Diff. = $2^\circ 30'$ } Extremely difficult. Distance = $3''.224$ | 5 Obs. | Diff. = $0''.240$ } Extremely difficult. The small star bears but a very feeble illumination. Measures must not be considered standard: the night is become very bad. Observed on the meridian. No. D CCLXXI. continued. Passy; September 1, 1825; Seven-feet Equatorial. 6th and 11th magnitudes. Position = $78^\circ 59' sp$ | 5 Obs. | Diff. = $3^\circ 30'$ } Excessively difficult. Distance = $3''.431$ | 5 Obs. | Diff. = $0''.312$ } Stars very ill defined, and also unsteady; results therefore deserving but little confidence; indeed I feel so little satisfied with them, that even should they accord with the former observations, I would still prefer another series, taken under more favourable circumstances. On the meridian at the time of observation. Passy; September 2, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $78^\circ 2' sp$ | 5 Obs. | Diff. = $2^\circ 2'$ } Extremely difficult. Distance = $3''.027$ | 5 Obs. | Diff. = $0''.336$ } Observed on the meridian; stars tolerably steady. Mean Result. Position $78^\circ 20' sp$ (15 Obs.); Distance $3''.227$ (15 Obs.); Epoch 1825.67. No. D CCLXXII. R. A. $20^h 56^m$; Decl. $2^\circ 51' N.$ Nova; Double; 9th and 12th magnitudes. Passy; August 20, 1825; Seven-feet Equatorial. Position = $59^\circ 50' sf$ | 5 Obs. | Diff. = $1^\circ 50'$ } Excessively difficult. Distance = $3''.638$ | 5 Obs. | Diff. = $0''.312$ } The small star is pale blue, extremely faint, and scarcely bears the least illumination. The results are perhaps a little questionable. Observed when on the meridian; night tolerably favourable. Passy; August 21, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. Position = $59^\circ 12' sf$ | 5 Obs. | Diff. = $2^\circ 7'$ } Excessively difficult. Distance = $3''.589$ | 5 Obs. | Diff. = $0''.336$ } A very slight illumination obliterates the small star. Observations made on the meridian. Mean Result. Position $59^\circ 31' sf$; Distance $3''.613$; Epoch 1825.64. Mr. South's observations of the apparent distances No. DCCLXXIII. R. A. $20^h\ 57^m$; Decl. $34^\circ\ 44'$ N. Struve, 704; Mayer. Double; 8th and 9th magnitudes. Passy; October 2, 1824; Seven-feet Equatorial. Position = $59^\circ\ 45'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 55'$ Distance = $1'\ 23''.293$ | 5 Obs. | Diff. = $0''.697$ Several stars in the field; some double, of the 4th and 5th classes; but their extreme faintness renders them unmeasurable with this instrument. Night very fine. Passy; November 9, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $60^\circ\ 3'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 49'$ Distance = $1'\ 23''.206$ | 5 Obs. | Diff. = $2''.332$ Night very unfavourable. Mean Result. Position $59^\circ\ 54'\ nf$; Distance $1'\ 23''.249$; Epoch 1824.80. No. DCCLXXIV. R. A. $20^h\ 59^m$; Decl. $33^\circ\ 26'$ N. Nova; Double; 8th and 9th magnitudes. Passy; August 9, 1825; Seven-feet Equatorial. Position = $47^\circ\ 25'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 51'$ Distance = $14''.797$ | 1 Obs. | Night is now become so extremely hazy, that no more observations can be procured. Passy; August 12, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $46^\circ\ 53'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 55'$ Distance = $14''.229$ | 5 Obs. | Diff. = $0''.673$ Mean Result. Position $47^\circ\ 9'\ sp$ (10 Obs.); Distance $14''.324$ (6 Obs.); Epoch 1825.61. and positions of 458 double and triple stars, &c. No. DCCLXXV. R. A. 21h 1m; Decl. 29° 29' N. STRUVE, 707; II. 97. Double; 6th and 10th magnitudes; small, blue. Passy; September 24, 1824; Seven-feet Equatorial. Position = 46° 51' np | 5 Obs. | Diff. = 3° 0' Distance = 3".524 | 5 Obs. | Diff. = 0".889 } Very difficult. This star is also double, of the 4th class, an extremely faint star preceding it, at about 70° south. No measures of it can be obtained. The dew is so intolerably troublesome, that I am obliged to discontinue the observations; and I do it with the greatest reluctance, for the night is unusually fine. Passy; November 6, 1824; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 44° 34'.np | 5 Obs. | Diff. = 2° 17' Distance = 3".629 | 5 Obs. | Diff. = 0".721 } Extremely difficult. Night unfavourable; observations taken when the stars were 50 minutes west of the meridian. Mean Result. Position 45° 12' np; Distance 3".576; Epoch 1824.70. The position here assigned, differs only 0° 3' from Sir W. Herschel's measure in 1783; nor does the distance appear to have sustained any material alteration. (H.) No. DCCLXXVI. R. A. 21h 2m; Decl. 21° 43' N. STRUVE, 709; BRADLEY. Double; 6th and 7th magnitudes. Blackman-street; July 15, 1824; Five-feet Equatorial. Position = 31° 59' np | 5 Obs. | Diff. = 2° 55' Distance = 17".663 | 5 Obs. | Diff. = 1".105 } Observed when 1 hour east of the meridian. Passy; November 3, 1824; Seven-feet Equatorial. 6th and 7th magnitudes. Position = 30° 58' np | 5 Obs. | Diff. = 0° 53' Distance = 17".638 | 5 Obs. | Diff. = 1".202 } Stars two hours west of the meridian, at the time of observation. MDCCCXXVI. n n Mr. South's observations of the apparent distances No. D CCLXXVI. continued. Passy; August 14, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 30° 2' np | 5 Obs. | Diff. = 1° 41' } Unsteady. Distance = 17''.999 | 5 Obs. | Diff. = 0''.481 } Night hazy; the stars occasionally very faint; the small one is bluish. Passy; September 5, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 30° 35' np | 5 Obs. | Diff. = 0° 30' } Very unsteady. Distance = 17''.054 | 5 Obs. | Diff. = 0''.962 } Night extremely hazy. Passy; September 9, 1825; Seven-feet Equatorial. 8½ and 9th magnitudes. Distance = 18''.071 | 5 Obs. | Diff. = 1''.010. Tolerably steady. The night is very hazy, and the small star at times extremely faint. All the observations of this double star taken this year, 1825, were the result of inadvertence; I was not aware that the star had been observed in 1824. Mean Result. Position 30° 53' np (20 Obs.); Epoch 1825.17; Distance 17''.685 (25 Obs.); Epoch 1825.27. No. D CCLXXVII. R. A. 21ʰ 2ᵐ; Decl. 61° 26' N. STRUVE, 708; 1789.213. Double; 9th and 9½ magnitudes. Blackman-street; July 10, 1824; Five-feet Equatorial. Position = 29° 53' np | 5 Obs. | Diff. = 3° 32'. Extremely difficult. Observed when 2 hours east of the meridian. Passy; November 16, 1824; Seven-feet Equatorial. 9th and 10th magnitudes. Position = 35° 37' np | 5 Obs. | Diff. = 0° 23' } Extremely difficult. Distance = 7''.002 | 5 Obs. | Diff. = 0''.913 } No. D CCLXXVII. continued. Passy; August 23, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $32^\circ 3' np$ | 5 Obs. | Diff. = $3^\circ 31'$ | Very difficult. Distance = $6''.648$ | 5 Obs. | Diff. = $0''.481$ Mean Result. Position $32^\circ 31' np$ (15 Obs.); Epoch 1825.01; Distance $6''.825$ (10 Obs.); Epoch 1825.25. No. DCCLXXVIII. R. A. $21^h 2^m$; Decl. $8^\circ 50'$ N. Nova; Double; equal; each 9th or 10th magnitudes; both bluish. Passy; August 16, 1825; Seven-feet Equatorial. Position = $6^\circ 1'sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ 27'$ | Excessively difficult. Distance = $2''.938$ | 5 Obs. | Diff. = $0''.192$ Stars tolerably steady, but are very faint. Night hazy. Passy; October 7, 1825; Seven-feet Equatorial. Equal; each of the 10th magnitude. Position = $5^\circ 45'sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ 58'$ | Excessively difficult. Measures of distance impracticable; neither star will bear the least illumination. Night tolerably favourable. Passy; October 8, 1825; Seven-feet Equatorial. Equal; each of the 9th magnitude. Position = $5^\circ 58'sp$ or $nf$ | 5 Obs. | Diff. = $4^\circ 48'$ | Excessively difficult. Distance = $3''.236$ | 5 Obs. | Diff. = $0''.120$ Night is become so hazy, that Captain Beaufort cannot procure any observations. Mean Result. Position $5^\circ 55'sp$ or $nf$ (15 Obs.); Epoch 1825.75; Distance $3''.087$ (10 Obs.); Epoch 1825.74. Mr. South's observations of the apparent distances No. DCCLXXIX. R. A. $21^h\ 2^m$; Decl. $38^\circ\ 1' N.$ Struve, 710. Double; 8th and 10th magnitudes; small, blue. Passy; October 2, 1824; Seven-feet Equatorial. Position = $79^\circ\ 23'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 0'$ Distance = $1'\ 54''.334$ | 5 Obs. | Diff. = $0''.601$ Very difficult. Several stars in the field; some double of the 3rd and 4th classes; but all too faint for measures. Passy; November 21, 1824; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $79^\circ\ 7'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 43'$ Distance = $1'\ 56''.367$ | 5 Obs. | Diff. = $1''.154$ Extremely difficult. Observed when 70 minutes west of the meridian. Passy; October 8, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. Distance = $1'\ 53''.753$ | 5 Obs. | Diff. = $1''.875$. Excessively difficult. Night hazy. Mean Result. Position $79^\circ\ 15'\ nf$ (10 Obs.); Epoch 1824.81; Distance $1'\ 54''.785$ (15 Obs.); Epoch 1825.13. No. DCCLXXX. R. A. $21^h\ 2^m$; Decl. $19^\circ\ 16' N.$ Nova; Double; equal; each 9th magnitude. Passy; August 14, 1825; Seven-feet Equatorial. Position = $57^\circ\ 14'\ nf$ or $sp$ | 5 Obs. | Diff. = $4^\circ\ 21'$ Distance = $3''.419$ | 5 Obs. | Diff. = $0''.360$ Difficult. Night very hazy, and stars unsteady. Passy; September 5, 1825; Seven-feet Equatorial. Equal; each of the 9th magnitude. Position = $59^\circ\ 8'\ nf$ or $sp$ | 5 Obs. | Diff. = $1^\circ\ 23'$ Distance = $2''.748$ | 5 Obs. | Diff. = $0''.312$ Very difficult. Night hazy; stars unsteady, and bear but a very feeble illumination. No. D CCLXXX. continued. Passy; September 15, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = $58° 39' nf$ | 5 Obs. | Diff. = $2° 34'$ } Very difficult. Distance = $2''.634$ | 5 Obs. | Diff. = $0''.505$ Stars very steady, but neither of them will bear a good illumination. Mean Result. Position $58° 20' nf$ or $sp$ (15 Obs.); Distance $2''.933$ (15 Obs.); Epoch 1825.67. No. DCCLXXXI. R. A. $21^h 4^m$; Decl. $6° 28' N.$ 19 (Bode) Equulei; Struve, 712. Double; 6½ and 7th magnitudes. Blackman-street; July 13, 1824; Five-feet Equatorial. Position = $82° 44' np$ | 5 Obs. | Diff. = $0° 21'$ } Satisfactory. Distance = $3' 4''.130$ | 5 Obs. | Diff. = $1''.389$ Observed by morning twilight, without artificial illumination. Passy; October 23, 1824; Seven-feet Equatorial. 6½ and 7th magnitudes. Position = $83° 12' np$ | 5 Obs. | Diff. = $0° 25'$ } Distance = $3' 2''.809$ | 5 Obs. | Diff. = $1''.082$ Passy; August 23, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Distance = $3' 2''.783$ | 5 Obs. | Diff. = $0''.408$. Very steady. Mean Result. Position $82° 58' np$ (10 Obs.); Epoch 1824.77; Distance $3' 3''.241$ (15 Obs); Epoch 1824.99. No. DCCLXXXII. R. A. $21^h 6^m$; Decl. $9^\circ 17' N.$ δ Equulei; STRUVE, 715; IV. 37. Double; 5th and 15th, or 20th magnitudes; I have often looked for the small star in ENGLAND, but could never detect it. Passy; October 2, 1824; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $47^\circ 34' nf$ | $25''.492$ | | Obs. | Diff. | |------|------| | 5 | $1^\circ 45'$ | | 5 | $2''.452$ | Excessively difficult. The small star is so extremely faint, that it cannot be seen even in the unilluminated field, without great attention. The observations were made with 105; and although the night is unusually favourable for delicate determinations, yet the measures here given must be received with some suspicion. Passy; October 12, 1825; Seven-feet Equatorial. 5th and 15th, or 20th magnitudes. | Position | Distance | |----------|----------| | $48^\circ 18' nf$ | $26''.775$ | | Obs. | Diff. | |------|------| | 10 | $4^\circ 20'$ | | 7 | $0''.769$ | Excessively difficult. Observed on the meridian with 157. Night very fine; the accuracy of the results is perhaps questionable. Mean Result. Position $48^\circ 3' nf$ (15 Obs.); Distance $26''.240$ (12 Obs.); Epoch 1825.26. This star appears to have sustained a very extraordinary change both in distance and position. Sir W. HERSCHEL's measures are as follows:—1781.80 (Oct. 22) Pos. $11^\circ 39' nf$, Dist. $19''.533$. Thus in 43.46 years no less an arc than $-36^\circ 24'$ has been described, being at the rate of $-0''.838$ per annum, and a change of distance to the amount of $+6''.707$, or $+0''.154$ per annum. An observation in a 20-feet sweep in 1785 confirms the fact of the angle made by the two stars being then small. "δ Equulei, double, very unequal, a few degrees nf. S.r." No. D CCLXXXII. continued. The star is a remarkable one; and from its magnitude and situation in the heavens, not to be confounded with any other. The proper motions assigned to this star in Piazzi's Catalogue, account satisfactorily for the change observed. They are respectively $+0''.08$ in R.A. and $-0''.29$ in declination. These motions, in 44 years, would carry the large star $3''.5$ to the following, and $12''.8$ to the south side of its place in 1781, or, in a direction, making an angle of $74^\circ sf$ with the parallel. Supposing then the small star fixed, the present angle of position and distance should be $47^\circ nf$ and $22''.5$ instead of $48^\circ 3'$ and $26''.24$ which observation makes them. If we consider the uncertainty which necessarily hangs about the earlier distance, depending as it does on a single measure, and from the extreme minuteness of the small star, liable easily to an error of 2 or 3'', it will be allowed that a more satisfactory verification of the proper motion of the one star, and the comparative fixity of the other, could hardly have been looked for. This, among other similar instances, will serve to show the advantage which may be taken of the measures of double stars in all researches relating to the proper motions of the stars. This star appears to be a fit object for the investigation of parallax. (H.) No. DCCLXXXIII. R.A. $21^h 7^m$; Decl. $8^\circ 23' S.$ Struve, 716; Hist. Cæl. 197. Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; September 23, 1824; Seven-feet Equatorial. Distance = $5''.167$ | 5 Obs. | Diff. = $0''.889$. Extremely difficult. These stars scarcely bear any illumination. Mr. South's observations of the apparent distances No. D CCLXXXIII. continued. Passy; November 21, 1824; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = $82^\circ 38' sf$ | 5 Obs. | Diff. = $1^\circ 32'$ } Extremely difficult. Distance = $4''.801$ | 5 Obs. | Diff. = $0''.817$ Observed when 50 minutes west of the meridian; the stars become invisible under a very slight illumination. Passy; September 2, 1825; Seven-feet Equatorial. 9½ and 10th magnitudes. Position = $82^\circ 6' sf$ | 5 Obs. | Diff. = $3^\circ 15'$ } Very steady. Distance = $4''.542$ | 5 Obs. | Diff. = $0''.577$ These stars bear neither illumination, nor magnifying power; and although the night is very fine, the results are a little suspicious. Mean Result. Position $82^\circ 22' sf$ (10 Obs.); Epoch 1825.28; Distance $4''.837$; (15 Obs.); Epoch 1825.10. No. DCCLXXXIV. R. A. $21^h 11^m$; Decl. $8^\circ 48' N.$ Nova; Double; 9th and 10th, or 11th magnitudes. Passy; September 15, 1825; Seven-feet Equatorial. Position = $84^\circ 50' sp$ | 5 Obs. | Diff. = $1^\circ 20'$ } Excessively difficult. Distance = $2''.394$ | 5 Obs. | Diff. = $0''.240$ Stars steady, but the small one bears only the most feeble illumination. Passy; October 8, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $84^\circ 13' sp$ | 5 Obs. | Diff. = $2^\circ 0'$ } SOUTH. Distance = $2''.851$ | 5 Obs. | Diff. = $0''.168$ Position = $85^\circ 35' sp$ | 5 Obs. | Diff. = $2^\circ 50'$ } Capt. Beauport. Distance = $2''.890$ | 5 Obs. | Diff. = $0''.240$ Observations considered excessively difficult, by both observers. Mean Result. Position $84^\circ 53' sp$ (15 Obs.); Distance $2''.642$ (15 Obs.); Epoch 1825.74. and positions of 458 double and triple stars, &c. No. DCCLXXXV. R. A. 21h 13'; Decl. 52° 15' N. STRUVE, 718. Double; equal; each of the 9th magnitude. Blackman-street; July 10, 1824; Five-feet Equatorial. Position = 27° 23' sf or np | 5 Obs. | Diff. = 3° 30' } Distance = 6°.818 | 5 Obs. | Diff. = 0°.885 } Rather difficult. The star 1½ hour east of the meridian, when the observations of it were procured. Passy; August 23, 1825; Seven-feet Equatorial. Equal; each 9½ magnitude. Position = 25° 43' sf or np | 5 Obs. | Diff. = 2° 10' } Distance = 6°.465 | 5 Obs. | Diff. = 0°.745 } Difficult. The measures of this double star would be very easy, but for the unfortunate interference of the observatory timbers. Mean Result. Position 26° 33' sf or np; Distance 6°.641; Epoch 1825.08. No. DCCLXXXVI. R. A. 21h 13m; Decl. 52° 19' N. 327 (BODE) Cygni; H. C. 301; STRUVE, 717. Double; 7th and 11th magnitudes. Blackman-street; July 10, 1824; Five-feet Equatorial. Position = 32° 8' np | 5 Obs. | Diff. = 1° 43' } Distance = 49°.580 | 5 Obs. | Diff. = 0°.727 } Extremely difficult. The small star is decidedly blue, and bears but the slightest illumination. Observed when 1½ hour east of the meridian. Passy; September 2, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = 32° 36' np | 5 Obs. | Diff. = 1° 21' } Distance = 48°.111 | 5 Obs. | Diff. = 0°.505 } Very difficult. Stars remarkably steady; observations satisfactory. Passy; September 4, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. Distance = 48°.526 | 5 Obs. | Diff. = 0°.793. Extremely difficult. Mean Result. Position 32° 22' np (10 Obs.); Epoch 1824.61; Distance 48°.739 (15 Obs.); Epoch 1824.97. MDCCCXXVI. No. DCCLXXXVII. R. A. $21^h\ 14^m$; Decl. $19^\circ\ 3'N.$ 1 Pegasi; STRUVE, 719; V. 20. Double; 5th and 9th magnitudes; small, blue, and bears a very tolerable illumination. Passy; September 17, 1824; Seven-feet Equatorial. Position $= 38^\circ\ 52'\ n\ p$ | 5 Obs. | Diff. $= 2^\circ\ 54'$ Distance $= 37''.550$ | 5 Obs. | Diff. $= 0''.841$ Passy; November 9, 1824; Seven-feet Equatorial. 5th and 10th magnitudes. Position $= 40^\circ\ 14'\ n\ p$ | 5 Obs. | Diff. $= 1^\circ\ 44'$ Very difficult. Distance $= 36''.066$ | 5 Obs. | Diff. $= 1''.058$ Night very unfavourable. Passy; August 31, 1825; Seven-feet Equatorial. 5th and 11th, or 12th magnitudes. Position $= 40^\circ\ 40'\ n\ p$ | 5 Obs. | Diff. $= 1^\circ\ 3'$ Excessively difficult. Distance $= 36''.837$ | 5 Obs. | Diff. $= 1''.010$ Passy; September 1, 1825; Seven-feet Equatorial. 5th and 11th magnitudes. Position $= 40^\circ\ 58'\ n\ p$ | 5 Obs. | Diff. $= 0^\circ\ 50'$ Excessively difficult. Distance $= 36''.991$ | 5 Obs. | Diff. $= 1''.443$ Night cloudless; but the stars are ill defined, and are extremely unsteady. Mean Result. Position $40^\circ\ 11'\ n\ p$ (20 Obs.); Distance $36''.861$ (20 Obs.); Epoch 1825.22. In 1781 the position was $38^\circ\ 19'\ n\ p$; the distance $40''.750$ "pretty exact." The distance is too large to be fully relied on; but the agreement of positions within $2^\circ$ shows that the star has undergone no notable change. (H.) and positions of 458 double and triple stars, &c. No. DCCLXXXVIII. R. A. 21h 14′; Decl. 7° 20′ S. Struve, 720; Hist. Cæl. 197. Double; 7th and 7½ magnitudes. Passy; September 23, 1824; Seven-feet Equatorial. Position = 6° 42′ nf | 5 Obs. | Diff. = 0° 30′ } Distance = 36″.578 | 5 Obs. | Diff. = 0″.769 } Passy; November 6, 1824; Seven-feet Equatorial. 8½ and 9th magnitudes. Position = 6° 10′ nf | 5 Obs. | Diff. = 1° 16′ } Distance = 36″.991 | 5 Obs. | Diff. = 1″.803 } Difficult. Stars faint. Night very foggy. Mean Result. Position 6° 30′ nf; Distance 36″.784; Epoch 1824.78. No. DCCLXXXIX. R. A. 21h 18m; Decl. 12° 56′ N. Nova; Double; 8th and 10th magnitudes; small star is pale blue, and bears scarcely any illumination. Passy; August 21, 1825; Seven-feet Equatorial. Position = 55° 42′ sp | 5 Obs. | Diff. = 4° 10′ } Excessively difficult. Distance = 3″.431 | 6 Obs. | Diff. = 0″.601 } Observed on the meridian. Passy; September 15, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = 57° 16′ sp | 5 Obs. | Diff. = 1° 0′ } Excessively difficult. Distance = 3″.539 | 5 Obs. | Diff. = 0″.120 } The small star is light blue, and bears hardly any illumination. Night tolerably favourable. Mean Result. Position 56° 29′ sp (10 Obs.); Distance 3″.480 (11 Obs.); Epoch 1825.67. Mr. South's observations of the apparent distances No. DCCXC. R. A. $21^h\ 18^m$; Decl. $35^\circ\ 33'$ N. 69 Cygni; Struve, 722; V. 44. Double; 6th and 12th magnitudes. Passy; October 2, 1824; Seven-feet Equatorial. Position = $11^\circ\ 40'\ sp$ | 5 Obs. | Diff. = $0^\circ\ 32'$ } Excessively difficult. Distance = $40''.504$ | 5 Obs. | Diff. = $1''.899$ } Night very favourable. Passy; November 21, 1824; Seven-feet Equatorial. 6th and 12th, or 15th magnitudes. Position = $11^\circ\ 57'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 44'$. Excessively difficult. Observations of distance cannot be procured. Passy; October 12, 1825; Seven-feet Equatorial. 8th and 12th, or 13th magnitudes. Position = $10^\circ\ 30'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 5'$ } Excessively difficult. Distance = $40''.107$ | 5 Obs. | Diff. = $0''.889$ } Observed on the meridian with 157. Night fine. Mean Result. Position $11^\circ\ 22'\ sp$ (15 Obs.); Epoch 1825.14; Distance $40''.305$ (10 Obs.); Epoch 1825.27. Sir W. Herschel gives no measures of this star. (H.) No. DCCXCI. R. A. $21^h\ 20^m$; Decl. $10^\circ\ 19'$ N. Nova; Double; $8\frac{1}{2}$ and 9th magnitudes. Passy; August 31, 1825; Seven-feet Equatorial. Position = $67^\circ\ 6'\ np$ | 5 Obs. | Diff. = $2^\circ\ 42'$ } Excessively difficult. Distance = $1''.460 \pm$ | 1 Obs. | Observed with 327, which is not sufficient to separate the stars sufficiently from each other. Night is suddenly become very bad, and these measures must only be regarded as approximations. No. DCCXCI. continued. Passy; September 10, 1825; Seven-feet Equatorial. Position = $69^\circ 4' 8f$ | 5 Obs. | Diff. = $3^\circ 28'$ } Excessively difficult. Distance = $1''.142 \pm$ | 5 Obs. | Diff. = $0''.240$ } These stars are of a bluish colour, and neither bear a good illumination, nor a high magnifying power. Observed with 327, which is more than they well bear: 181 does not separate their discs, although the night is hazy. The results are probably a little suspicious. Mean Result. Position $68^\circ 5' np$ or $sf$ (10 Obs.); Distance $1''.195 \pm$ (6 Obs.); Epoch 1825.68. No. DCCXCII. R. A. $21^h 24^m$; Decl. $33^\circ 2' N.$ Nova; Double; equal; each of the $9\frac{1}{2}$ magnitude. Passy; August 20, 1825; Seven-feet Equatorial. Position = $79^\circ 21' sp$ or $nf$ | 6 Obs. | Diff. = $1^\circ 15'$ } Extremely difficult. Distance = $4''.474$ | 5 Obs. | Diff. = $0''.432$ } Stars steady; night tolerably favourable. Passy; September 4, 1825; Seven-feet Equatorial. 10th and $10\frac{1}{2}$ magnitudes. Position = $79^\circ 26' nf$ | 5 Obs. | Diff. = $3^\circ 24'$ } Extremely difficult. Distance = $4''.169$ | 5 Obs. | Diff. = $0''.456$ } Observed on the meridian; night very hazy. Mean Result. Position $79^\circ 23' sp$ or $nf$ (11 Obs.); Distance $4''.321$ (10 Obs.); Epoch 1825.65. No. DCCXCIII. R. A. $21^h 25^m$; Decl. $19^\circ 56' N.$ Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; August 21, 1825; Seven-feet Equatorial. Position = $40^\circ 57' np$ | 5 Obs. | Diff. = $2^\circ 14'$. Very difficult. Observed on the meridian. Mr. South's observations of the apparent distances No. DCCXCIII. continued. Passy; September 5, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = $41^\circ 48' np$ | 5 Obs. | Diff. = $1^\circ 20'$ } Very difficult. Distance = $2''.579$ | 5 Obs. | Diff. = $0''.120$ } Night hazy; stars on the meridian, but unsteady. Passy; October 11, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = $42^\circ 14' np$ | 5 Obs. | Diff. = $2^\circ 2'$ } Excessively difficult. Distance = $2''.582$ | 5 Obs. | Diff. = $0''.168$ } Both stars are bluish, and bear scarcely any illumination. Night foggy. Mean Result. Position $41^\circ 40' np$ (15 Obs.); Epoch 1825.70; Distance $2''.580$ (10 Obs.); Epoch 1825.73. No. DCCXCIV. R. A. $21^h 31^m$; Decl. $35^\circ 35' N$ Nova; Double; 9th and 12th, or 15th magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. Position = $71^\circ 51' sf$ | 5 Obs. | Diff. = $3^\circ 15'$ } Excessively difficult. Distance = $8''.139$ | 5 Obs. | Diff. = $0''.673$ } The small star is so extremely faint, that it cannot be seen without great attention; the observations are perhaps a little inaccurate; but the night is very fine, and the stars are very steady. Passy; September 5, 1825; Seven-feet Equatorial. 9½ and 12th, or 13th magnitudes. Position = $72^\circ 15' sf$ | 5 Obs. | Diff. = $3^\circ 15'$ } Excessively difficult. Distance = $8''.206$ | 5 Obs. | Diff. = $1''.683$ } The small star is only visible by glimpses. Results of suspicious accuracy. Mean Result. Position $72^\circ 3' sf$; Distance $8''.172$; Epoch 1825.68. No. DCCXCV. R. A. $21^h\ 33^m$; Decl. $56^\circ\ 41'N$. STRUVE, 728; P. XXI. 248; III. 71. Triple; A 7th, B $9\frac{1}{2}$, and C of the 9th magnitudes. Measures of A B. Passy; October 4, 1824; Seven-feet Equatorial. | Position = $32^\circ\ 12'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 25'$ | | Distance = $12'.221$ | 5 Obs. | Diff. = $0''.168$ | Passy; November 16, 1824; Seven-feet Equatorial. 7th and 10th magnitudes. | Position = $30^\circ\ 54'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 24'$ | | Distance = $11''.699$ | 5 Obs. | Diff. = $0''.889$ | Difficult. Measures of A C. Passy; October 4, 1824; Seven-feet Equatorial. 7th and 9th magnitudes. | Position = $68^\circ\ 35'\ np$ | 5 Obs. | Diff. = $1^\circ\ 20'$ | | Distance = $19''.233$ | 5 Obs. | Diff. = $1''.058$ | Passy; November 16, 1824; Seven-feet Equatorial. 7th and 9th magnitudes. | Position = $69^\circ\ 32'\ np$ | 5 Obs. | Diff. = $1^\circ\ 48'$ | | Distance = $19''.543$ | 5 Obs. | Diff. = $1''.058$ | Mean Result. of A. B. Position $31^\circ\ 33'\ sf$; Distance $11''.945$; of A C. Position $69^\circ\ 3'\ np$; Distance $19''.388$; Epoch 1824.81. These measures compared with those of 1783 give a change of $-3^\circ\ 51'$ in angle and $+0''.3$ in distance for the nearer star B, and $-4^\circ\ 54'$ and $+0''.77$ for the more distant one C. If these changes arise from real motions, and be not merely errors of observation, they cannot be accounted for by supposing the stars B and C at rest, and the central star A only in motion. (H.) Mr. South's observations of the apparent distances No. D CCXCVI. R.A. $21^h\ 34^m$; Decl. $39^\circ\ 59'N$. 76 Cygni; Struve, 730; V. 43. Double; 6th and 10th magnitudes. Passy; September 29, 1824; Seven-feet Equatorial. Position = $40^\circ\ 59'sp$ | 5 Obs. | Diff. = $1^\circ\ 0'$ } Difficult. Distance = $1'\ 5''.624$ | 5 Obs. | Diff. = $0''.841$ } Difficult. Small star very faint. Passy; November 21, 1824; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $40^\circ\ 45'sp$ | 5 Obs. | Diff. = $1^\circ\ 35'$ } Very difficult. Distance = $1'\ 5''.667$ | 5 Obs. | Diff. = $0''.745$ } Very difficult. The small star bears but a very slight illumination. Mean Result. Position $40^\circ\ 52'sp$; Distance $1'\ 5''.645$; Epoch 1824.82. Sir W. Herschel has no measures of this star. (H.) No. DCCXCVII. R.A. $21^h\ 35^m$; Decl. $56^\circ\ 46'N$. Struve, 729; P. XXI. 256; III. 72. Double; 8th and 9th magnitudes. Passy; October 4, 1824; Seven-feet Equatorial. Position = $33^\circ\ 1'nf$ | 5 Obs. | Diff. = $2^\circ\ 20'$ } Difficult. Distance = $12''.154$ | 5 Obs. | Diff. = $0''.408$ } Difficult. Passy; November 16, 1824; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $34^\circ\ 9'nf$ | 5 Obs. | Diff. = $1^\circ\ 43'$. Excessively difficult. Night very hazy. Passy; October 11, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Distance = $12''.147$ | 5 Obs. | Diff. = $0''.673$. Extremely difficult. The small star very indistinct. Night foggy. Mean Result. Position $33^\circ\ 35' nf$ (10 Obs.) ; Epoch 1824.81; Distance $12''.150$ (10 Obs.) ; Epoch 1825.27. The angle in 1783 was $31^\circ\ 35'$. The distance $12''.11$ according to Sir W. Herschel's measures. (H.) and positions of 458 double and triple stars, &c. No. DCCXCVIII. R.A. 21\textsuperscript{h} 35\textsuperscript{m}; Decl. 9\textsuperscript{o} 3\textsuperscript{'} N. ε Pegasi; Struve, 731; VI. 103. Double; 3rd and 10th, or 12th magnitudes; small, blue. Blackman-street; July 15, 1824; Five-feet Equatorial. Position = 52° 41' np | 5 Obs. | Diff. = 1° 14'. Excessively difficult. Passy; November 6, 1824; Seven-feet Equatorial. 3rd and 10th magnitudes. Position = 53° 0' np | 5 Obs. | Diff. = 0° 44' } Extremely difficult. Distance = 2' 18''.805 | 5 Obs. | Diff. = 2''.404 } Passy; October 12, 1825; Seven-feet Equatorial. 3rd and 10th magnitudes. Position = 53° 15' np | 5 Obs. | Diff. = 1° 12' } Very difficult. Distance = 2' 18''.223 | 5 Obs. | Diff. = 0''.962 } Observed on the meridian with 157. Night very fine. Mean Result. Position 52° 59' np (15 Obs.); Epoch 1825.05; Distance 2' 18''.514 (10 Obs.); Epoch 1825.31. Comparing the angle of position here assigned with that given by Sir W. Herschel in 1783, we find a difference of only 14'. The distances indeed differ enormously, no less than 47'', but this has already been sufficiently spoken of elsewhere. (H.) No. DCCXCIX. R.A. 21\textsuperscript{h} 36\textsuperscript{m}; Decl. 37° 29' N. 79 Cygni; Struve, 732; VI. 57. Double; 5th and 7th magnitudes. Blackman-street; July 10, 1824; Five-feet Equatorial. Position = 30° 36' nf | 5 Obs. | Diff. = 0° 24' } Distance = 2' 33''.025 | 5 Obs. | Diff. = 1''.579 } . . . North preceding the brighter star A, and perhaps a little nearer to it than B, is a star C of the 12th or 15th magnitudes; and in the lower part of the field is a double star of the 4th class; equal; each of the same magnitude as the star C. Position = 30° ± sp or nf, and distance = 40''.0 ±. Measures little else than cautious estimations. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCXCIX. continued. Passy; November 9, 1824; Seven-feet Equatorial. 5th and 7th magnitudes. Position = $30^\circ 42' nf$ | 5 Obs. | Diff. = $0^\circ 5'$ } Hazy. Distance = $2' 33''.325$ | 5 Obs. | Diff. = $0''.625$ Observed when $1^h 20'$ west of the meridian; night unfavourable; no measures of A C can be obtained. Measures of A C. Blackman-street; July 10, 1824; Five-feet Equatorial. 5th and 12th, or 15th magnitudes. Position = $50^\circ 8' np$ | 2 Obs. | Diff. = $0^\circ 45'$. Excessively difficult. The extreme faintness of the small star renders observations of distance impracticable; but I consider it less than that of A B. Mean Result. of A B. Position $30^\circ 39' nf$; Distance $2' 33''.170$; Epoch 1824.68. of A C. Position $50^\circ 8' np$; Distance about $2\frac{1}{2}$ minutes; Epoch 1824.53. Sir W. Herschel has no measures of this star. (H.) No. DCCC. R. A. $21^h 49^m$; Decl. $61^\circ 45' N.$ Struve, 734; 1789. 213. Triple; A $6\frac{1}{2}$, B 7th, and C of the 12th magnitudes. Measures of A B. Blackman-street; July 11, 1824; Five-feet Equatorial. Position = $55^\circ 4'sf$ | 5 Obs. | Diff. = $0^\circ 59'$ } Very steady. Distance = $1' 2''.826$ | 5 Obs. | Diff. = $0''.659$ Three hours and a half east of the meridian, at the time of observation; of A C no measures can be obtained. Note; There are two sets of triple stars in the field; the stars here measured are the two brightest. Passy; November 16, 1824; Seven-feet Equatorial. Triple; but the 3rd star will not bear the least illumination. Position = $55^\circ 39'sf$ | 5 Obs. | Diff. = $0^\circ 46'$ } Distance = $1' 2''.847$ | 5 Obs. | Diff. = $0''.817$ Mean Result. of A B. Position $55^\circ 21'sf$; Distance $1' 2''.836$; Epoch 1824.70. No. DCCCII. R. A. $21^h\ 53^m$; Decl. $17^o\ 49'$. S. 29 Aquarii; STRUVE, 738. Double; 8th and $8\frac{1}{2}$ magnitudes. Blackman-street; July 12, 1824: Five-feet Equatorial. Position = $27^o\ 23'\ sp$ | 5 Obs. | Diff. = $1^o\ 30'$ Distance = $4''.317$ | 5 Obs. | Diff. = $0''.316$ Passy; November 3, 1824; Seven-feet Equatorial. $7\frac{1}{2}$ and 8th magnitudes. Position = $25^o\ 53'\ sp$ | 5 Obs. | Diff. = $2^o\ 21'$ Distance = $4''.424$ | 5 Obs. | Diff. = $0''.889$ Observed when 50 minutes west of the meridian. Mean Result. Position $26^o\ 38'\ sp$; Distance $4''.370$; Epoch 1824.68. Mr. South's observations of the apparent distances No. DCCCIII. R. A. $21^h\ 57^m$; Decl. $12^\circ\ 48'$ N. Nova; Double; equal; each 9th magnitude. Passy; August 20, 1825; Seven-feet Equatorial. Position = $6^\circ\ 24'\ sp$ or $nf$ | 5 Obs. | Diff. = $1^\circ\ 35'$ Rather difficult. Distance = $3''.244$ | 5 Obs. | Diff. = $0''.408$ Stars steady; night tolerably favourable. Passy; September 4, 1825; Seven-feet Equatorial. Equal; each of the $9\frac{1}{2}$ magnitude. Position = $7^\circ\ 55'\ sp$ or $nf$ | 5 Obs. | Diff. = $2^\circ\ 9'$ Very difficult. Distance = $3''.332$ | 5 Obs. | Diff. = $0''.408$ Night hazy; stars at times very faint. Mean Result. Position $7^\circ\ 9'\ sp$ or $nf$; Distance $3''.288$; Epoch 1825.65. No. DCCCIV. R. A. $22^h\ 0^m$; Decl. $69^\circ\ 20'$ N. Struve, 740; 1789. 218. Double; $9\frac{1}{2}$ and 10th magnitudes. Passy; October 4, 1824; Seven-feet Equatorial. Position = $83^\circ\ 50'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 48'$ Extremely difficult. The small star scarcely bears any illumination. Passy; October 12, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $83^\circ\ 36'\ sf$ | 5 Obs. | Diff. = $0''.55'$ Distance = $16''.434$ | 5 Obs. | Diff. = $0''.456$ Observed with 157. Night favourable. Passy; October 13, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Distance = $16''.778$ | 5 Obs. | Diff. = $0''.553$. Excessively difficult. Neither star will bear a good illumination. Observed with 157. Mean Result. Position $83^\circ\ 43'\ sf$ (15 Obs.) ; Epoch 1825.27; Distance $16''.606$ (10 Obs.) ; Epoch 1825.78. and positions of 458 double and triple stars, &c. No. D CCCV. R. A. $22^h\ 0^m$; Decl. $36^\circ\ 45' N.$ Nova; Double; $8\frac{1}{2}$ and 10th magnitudes. Passy; September 17, 1824; Seven-feet Equatorial. Position = $23^\circ\ 43'\ nf$ | 5 Obs. | Diff. = $4^\circ\ 0'$ Very difficult. The small star bears but a very feeble illumination. Passy; September 29, 1824; Seven-feet Equatorial. 8th and 12th, or 15th magnitudes. Position = $22^\circ\ 5'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 57'$ Extremely difficult. Distance = $13''.097$ | 5 Obs. | Diff. = $0''.505$ Passy; November 3, 1824; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $22^\circ\ 13'\ nf$ | 5 Obs. | Diff. = $3^\circ\ 33'$ Extremely difficult. Distance = $12''.349$ | 5 Obs. | Diff. = $0''.986$ Passy; September 9, 1825; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $22^\circ\ 39'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 44'$ Extremely difficult. Distance = $12''.877$ | 5 Obs. | Diff. = $1''.178$ Mean Result. Position $22^\circ\ 40'\ nf$ (20 Obs.) ; Epoch 1825.00; Distance $12''.774$ (15 Obs.); Epoch 1825.09. No. D CCCVI. R. A. $22^h\ 4^m$; Decl. $81^\circ\ 58' N.$ 180 (Bode) Cephei; STRUVE, 743. Double; $7\frac{1}{2}$ and 8th magnitudes. Blackman-street; July 13, 1824; Five-feet Equatorial. Position = $12^\circ\ 36'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 53'$ By twilight. Distance = $13''.063$ | 5 Obs. | Diff. = $1''.579$ The morning is so far advanced, that artificial illumination of the micrometer wires is unnecessary. Stars steady. Passy; October 23, 1824; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $11^\circ\ 26'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 2'$ On the meridian. Distance = $14''.071$ | 5 Obs. | Diff. = $1''.539$ Mr. South's observations of the apparent distances No. DCCCVI. continued. Passy; September 10, 1825; Seven-feet Equatorial. 7½ and 8th magnitudes. Position = $12^\circ 21' nf$ | 5 Obs. | Diff. = $1^\circ 29'$ {Satisfactory. Distance = $13''.568$ | 5 Obs. | Diff. = $0''.649$ Night hazy; but the stars are steady. Mean Result. Position $12^\circ 8' nf$ (15 Obs.); Distance $13''.567$ (15 Obs.); Epoch 1825.02. No. DCCCVII. R. A. $22^h 6^m$; Decl. $28^\circ 41' N.$ Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. Position = $19^\circ 37' sf$ | 6 Obs. | Diff. = $3^\circ 50'$ {Very difficult. Distance = $2''.041$ | 5 Obs. | Diff. = $0''.240$ Observed with 327, a power just sufficient to separate distinctly the two stars from each other; but it is unfortunately rather a higher power than the stars well bear, although they are very steady, are on the meridian, and the night is favourable. Passy; September 5, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $22^\circ 43' sf$ | 5 Obs. | Diff. = $1^\circ 12'$ {Extremely difficult. Distance = $1''.719$ | 5 Obs. | Diff. = $0''.312$ I attempted to observe this double star with 181, but could not succeed; the measures were procured with 327, which is a power greater than the stars well bear. The stars are unsteady, and the night is hazy. Passy; September 14, 1825; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. Position = $21^\circ 45' sf$ | 5 Obs. | Diff. = $3^\circ 16'$ {Excessively difficult. Distance = $1''.508$ | 3 Obs. | Diff. = $0''.288$ The haze is become so considerable, that the stars are no longer visible. Mean Result. Position $21^\circ 15' sf$ (16 Obs.); Distance $1''.794$ (13 Obs.); Epoch 1825.70. No. DCCCVIII. R. A. $22^h\ 16^m$; Decl. $21^\circ\ 5' S.$ Nova; Double; 8th and 11th magnitudes. Passy; October 20, 1825; Seven-feet Equatorial. Position = $64^\circ\ 35'\ s f$ | 10 Obs. | Diff. = $4^\circ\ 10'$ | Excessively difficult. Distance = $6''.457$ | 5 Obs. | Diff. = $0''.288$ Observed when $1\frac{1}{2}$ hour west of the meridian; stars unsteady, night hazy; the results must be received with caution; the small star was only visible by glimpses. Unfavourable weather has prevented me getting more observations of this double star, although I have endeavoured to observe it every tolerable night, during several weeks. Mean Result. Position $64^\circ\ 35'\ s f$ (10 Obs.); Distance $6''.457$ (5 Obs.); Epoch 1825.80. No. DCCCIX. R. A. $22^h\ 24^m$; Decl. $6^\circ\ 31' N.$ Nova; Double; equal; each of the 10th magnitude. Passy; September 15, 1825; Seven-feet Equatorial. Position = $79^\circ\ 55'\ n p$ or $s f$ | 5 Obs. | Diff. = $0^\circ\ 38'$ | Excessively difficult. Distance = $12''.777$ | 5 Obs. | Diff. = $1''.130$ Both stars bluish, and bear scarcely any illumination. Passy; October 11, 1825; Seven-feet Equatorial. Equal; each of the 11th magnitude. Position = $79^\circ\ 28'\ n p$ or $s f$ | 5 Obs. | Diff. = $2^\circ\ 44'$ | Excessively difficult. Distance = $13''.018$ | 5 Obs. | Diff. = $0''.432$ Observations deserving but very little confidence; the night is very hazy, and the stars cannot be seen without the greatest attention. Mean Result. Position $79^\circ\ 41'\ n p$ or $s f$ (10 Obs.); Distance $12''.897$ (10 Obs.); Epoch 1825.74. Mr. South's observations of the apparent distances No. DCCCX. R. A. $22^h\ 25^m$; Decl. $3^\circ\ 19'$ N. Struve, 756; Hist. Cæl. 108. Double; $8\frac{1}{2}$ and 10th magnitudes; the small star is blue, and bears a very tolerable illumination. Passy; October 2, 1824; Seven-feet Equatorial. Position = $55^\circ\ 27'\ s f$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Not difficult. Distance = $14''.311$ | 5 Obs. | Diff. = $0''.769$ } Observed on the meridian. Passy; November 21, 1824; Seven-feet Equatorial. 9th and 11th magnitudes. Position = $55^\circ\ 44'\ s f$ | 5 Obs. | Diff. = $5^\circ\ 23'$ } Excessively difficult. Distance = $13''.813$ | 5 Obs. | Diff. = $1''.010$ } Night unfavourable. Mean Result. Position $55^\circ\ 35'\ s f$; Distance $14''.062$; Epoch 1824.82. No. DCCCXI. R. A. $22^h\ 29^m$; Decl. $37^\circ\ 57'$ N. Struve, 758. Double; 9th and $9\frac{1}{2}$ magnitudes; and bear but a slight illumination. Passy; October 2, 1824; Seven-feet Equatorial. Position = $67^\circ\ 9'\ n p$ | 5 Obs. | Diff. = $0^\circ\ 47'$ } Very difficult. Distance = $21''.413$ | 5 Obs. | Diff. = $0''.986$ } Passy; November 24, 1824; Seven-feet Equatorial. 10th and 11th magnitudes. Position = $68^\circ\ 27'\ n p$ | 3 Obs. | Diff. = $1^\circ\ 10'$ . Excessively difficult. The night is become so abominably bad, no more observations can be gotten. Passy; September 9, 1825; Seven-feet Equatorial. 9$\frac{1}{2}$ and 10th magnitudes. Position = $67^\circ\ 6'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 47'$ } Extremely difficult. Distance = $20''.937$ | 5 Obs. | Diff. = $0''.505$ } Stars tolerably steady; but the night is so extremely hazy, that neither of them will scarcely bear any illumination. Mean Result. Position $67^\circ\ 26'\ n p$ (13 Obs.); Epoch 1825.11; Distance $21''.175$ (10 Obs.); Epoch 1825.22. and positions of 458 double and triple stars, &c. No. DCCCXII. R. A. $22^h\ 30^m$; Decl. $13^\circ\ 28'$ S. STRUVE, 759; Hist. Cæl. 181. Double; $9\frac{1}{2}$ and 10th magnitudes, and bear only a very slight illumination. Passy; September 27, 1824; Seven-feet Equatorial. Distance = $6''.547$ | 5 Obs. | Diff. = $1''.082$. Extremely difficult. Passy; November 21, 1824; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $56^\circ\ 4' \ n p$ | 5 Obs. | Diff. = $3^\circ\ 8'$ Distance = $5''.753$ | 5 Obs. | Diff. = $1''.082$ Exceedingly difficult. Stars very steady. Night tolerably fine. Passy; September 9, 1825; Seven-feet Equatorial. $9\frac{1}{2}$ and 10th magnitudes. Position = $57^\circ\ 28' \ s f$ | 5 Obs. | Diff. = $1^\circ\ 23'$ Distance = $5''.732$ | 5 Obs. | Diff. = $0''.841$ Extremely difficult. These stars are of a bluish colour, and neither bear illumination nor magnifying power. Mean Result. Position $56^\circ\ 46' \ s f$ or $n p$ (10 Obs.); Epoch 1825.29; Distance $6''.011$ (15 Obs.); Epoch 1825.11. No. DCCCXIII. R. A. $22^h\ 31^m$; Decl. $38^\circ\ 7'$ N. 10 Lacertæ; STRUVE, 760; V. 97. Double; 6th and 12th magnitudes; the small star scarcely bears any illumination. Passy; October 7, 1824; Seven-feet Equatorial. Position = $41^\circ\ 20' \ n f$ | 5 Obs. | Diff. = $2^\circ\ 45'$ Distance = $1''.611$ | 5 Obs. | Diff. = $0''.937$ Extremely difficult. Passy; December 6, 1824; Seven-feet Equatorial. 6th and 12th magnitudes. Position = $42^\circ\ 34' \ n f$ | 2 Obs. | Diff. = $0^\circ\ 7'$. Excessively difficult. The night is at present fine, but the small star will not bear even the slightest illumination. No measures of distance can be procured. MDCCCXXVI. Mr. South's observations of the apparent distances No. D CCCXIII. continued. Passy; October 12, 1825; Seven-feet Equatorial. 7th and 13th or 14th magnitudes. Position $= 40^\circ 48' nf$ | 5 Obs. | Diff. = $2^\circ 29'$ } Excessively difficult. Distance = $1' 0''.277$ | 5 Obs. | Diff. = $0''.601$ } Observed on the meridian with 157; night very fine. Mean Result. Position $41^\circ 19' nf$ (12 Obs.); Epoch 1825.16; Distance $1' 0''.444$ (10 Obs.); Epoch 1825.27. The present angle differs only $2^\circ 34'$ from that found in 1783. (H.) No. DCCCXIV. R. A. $22^h 33^m$; Decl. $29^\circ 7'$ N. Nova; Double; equal; each 10th magnitude. Passy; September 2, 1825; Seven-feet Equatorial. Position $= 9^\circ 33' np$ or $sf$ | 5 Obs. | Diff. = $1^\circ 24'$ } Excessively difficult. Distance = $18''.425$ | 5 Obs. | Diff. = $0''.769$ } Stars steady, and on the meridian; but the results may be a little suspected. Passy; October 11, 1825; Seven-feet Equatorial. 11th and 12th magnitudes. Position $= 9^\circ 52' np$ | 5 Obs. | Diff. = $1^\circ 31'$ } Excessively difficult. Distance = $18''.620$ | 5 Obs. | Diff. = $0''.529$ } Night so hazy, and the stars so very indistinct, that great confidence must not be placed in the accuracy of the observations. Mean Result. Position $9^\circ 42' np$ or $sf$ (10 Obs.); Distance $18''.522$; Epoch 1825.72. and positions of 458 double and triple stars, &c. No. DCCCXV. R. A. $22^h\ 39^m$; Decl. $39^\circ\ 17'$ N. 12 Lacertæ; STRUVE, 761; VI. 121. Double; 6th and 12th magnitudes. Passy; October 7, 1824; Seven-feet Equatorial. Position = $73^\circ\ 55'\ n f$ | 5 Obs. | Diff. = $1^\circ\ 20'$ } Excessively difficult. Distance = $1'\ 12''.257$ | 5 Obs. | Diff. = $1''.635$ } The small star will scarcely bear any illumination. Night fine. Passy; October 12, 1825; Seven-feet Equatorial. 6th and 13th, or 14th magnitudes. Position = $73^\circ\ 2'\ n f$ | 5 Obs. | Diff. = $1^\circ\ 9'$ } Excessively difficult. Distance = $1'\ 11''.890$ | 5 Obs. | Diff. = $0''.793$ } Observed with 157. Night very fine. Mean Result. Position $73^\circ\ 28'\ n f$ (10 Obs.); Distance $1'\ 12''.073$ (10 Obs.); Epoch 1825.27. The angle of 1783 agrees with this within half a degree. (H.) No. DCCCXVI. R. A. $22^h\ 35^m$; Decl. $29^\circ\ 17'$ N. η Pegasi; STRUVE, 763; VI. 21. Double; 3rd or 4th, and 12th magnitudes. Passy; October 7, 1824; Seven-feet Equatorial. Position = $68^\circ\ 48'\ n p$ | 5 Obs. | Diff. = $0^\circ\ 14'$ } Extremely difficult. Distance = $1'\ 29''.381$ | 5 Obs. | Diff. = $1''.539$ } Observed on the meridian. Passy; December 6, 1824; Seven-feet Equatorial. 4th and 12th, or 15th magnitudes. Position = $69^\circ\ 4'\ n p$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Excessively difficult. Distance = $1'\ 30''.266$ | 5 Obs. | Diff. = $1''.683$ } The small star scarcely bears the slightest illumination. Mean Result. Position $68^\circ\ 56'\ n p$; Distance $1'\ 29''.823$; Epoch 1824.85. Sir W. HERSCHEL gives no measures of this star. (H.) No. DCCCXVII. R. A. $22^h\ 38^m$; Decl. $15^\circ\ 0'$ S. $\tau'$ Aquarii; STRUVE, 765; V. 80. Double; 6th and 12th magnitudes. Passy; October 7, 1824; Seven-feet Equatorial. Position $= 23^\circ\ 27'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 41'$ } Excessively difficult. Distance $= 30''.838$ | 5 Obs. | Diff. = $0''.865$ } The night is remarkably fine. Observations made on the meridian. Passy; November 21, 1824; Seven-feet Equatorial. 7th and 12th magnitudes. Position $= 21^\circ\ 36'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 20'$. Excessively difficult. Measures of distance I cannot obtain, yet the night is fine, and the stars are only 15 minutes west of the meridian. Passy; October 12, 1825; Seven-feet Equatorial. 6th and 13th, or 14th magnitudes. Position $= 23^\circ\ 18'\ sf$ | 5 Obs. | Diff. = $2^\circ\ 23'$ } Excessively difficult. Distance $= 30''.235$ | 5 Obs. | Diff. = $0''.697$ } Observed on the meridian with 157; with 181 I cannot see the small star. Mean Result. Position $22^\circ\ 47'\ sf$ (15 Obs.); Epoch 1825.15; Distance $30''.536$ (10 Obs.); Epoch 1825.27. The measures of 1783 are, Position $19^\circ\ 54'\ sf$; Distance $35''.62$. The difference of Position $2^\circ\ 53'$ is not material, considering the difficulty of the star; but a diminution of distance to the extent of $5''.1$ deserves notice, because the micrometrical error of the earlier observations would tend to produce an apparent increase. (H.) and positions of 458 double and triple stars, &c. No. DCCCXVIII. R. A. $22^h\ 40^m$; Decl. $14^\circ\ 33'$ S. $\tau^2$ Aquarii; STRUVE, 767; VI. 97. Double; 5th and 12th magnitudes. Passy; September 29, 1824; Seven-feet Equatorial. Position = $22^\circ\ 20'\ np$ | 5 Obs. | Diff. = $1^\circ\ 4'$. Excessively difficult. Passy; November 21, 1824; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $22^\circ\ 28'\ np$ | 5 Obs. | Diff. = $1^\circ\ 13'$. Excessively difficult. Observations of distance impracticable; night tolerably good. Passy; October 12, 1825; Seven-feet Equatorial. 5th and 14th, or 15th magnitudes. Distance = $2'\ 13''.120$ | 5 Obs. | Diff. = $1''.731$. Excessively difficult. Observed on the meridian with 157; night very fine. Passy; October 16, 1825; Seven-feet Equatorial. 5th and 12th, or 14th magnitudes. Distance = $2'\ 13''.756$ | 5 Obs. | Diff. = $1''.274$. Excessively difficult. Observed with 92, when on the meridian; with 157 the small star could not be distinguished. Mean Result. Position $22^\circ\ 24'\ np$ (10 Obs.); Epoch 1824.81; Distance $2'\ 13''.438$ (10 Obs.); Epoch 1825.78. The angle of 1783 is $18^\circ\ 30'\ np$, differing $3^\circ\ 54'$ from the present, which is considerable for a star of the 6th class. (H.) No. DCCCXIX. R. A. $22^h\ 41^m$; Decl. $30^\circ\ 23'$ N. Nova; Double; 9th and $9\frac{1}{4}$ magnitudes; both bluish. Passy; September 2, 1825; Seven-feet Equatorial. Position = $19^\circ\ 58'\ np$ | 5 Obs. | Diff. = $2^\circ\ 52'$ Distance = $3'\ 532$ | 5 Obs. | Diff. = $0''.288$ | Excessively difficult. Neither of these stars will bear much illumination. Observations perhaps a little suspicious; yet the night is very fine, and the stars are steady. Mr. South's observations of the apparent distances No. DCCCXIX. continued. Passy; September 5, 1825; Seven-feet Equatorial. Equal; each 10th magnitude. Position = $21^\circ 4' np$ or $sf$ Distance = $3''.893$ | 5 Obs. | Diff. = $3^\circ 50'$ | | 5 Obs. | Diff. = $0''.336$ | Excessively difficult. Night very hazy. Mean Result. Position $20^\circ 31' np$ or $sf$; Distance $3''.712$; Epoch 1825.68. No. DCCCXX. R. A. $22^h 42^m$; Decl. $71^\circ 56'$ N. Struve, 768; 1789. 219. Double; 8th and 9th magnitudes. Passy; October 9, 1824; Seven-feet Equatorial. Position = $9^\circ 24' np$ Distance = $2' 0''.848$ | 5 Obs. | Diff. = $0^\circ 9'$ | | 5 Obs. | Diff. = $0''.601$ | A star C of the 11th magnitude makes an isosceles triangle with the stars A B here measured; and it is perhaps hardly so much as twice the distance from them, that they are from each other. Position of A C $78^\circ 30' np$ (single Observation.) Passy; October 11, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Distance = $2' 0''.942$ | 5 Obs. | Diff. = $1''.154$. Very difficult. Observed with 157; the small star very indistinct on account of the fog. Passy; October 12, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $9^\circ 21' np$ | 5 Obs. | Diff. = $0^\circ 40'$. . . . Mean Result. Position $9^\circ 21' np$ (10 Obs.); Distance $2' 0''.895$ (10 Obs.); Epoch 1825.27. and positions of 458 double and triple stars, &c. No. DCCCXXI. R. A. $22^h\ 50^m$; Decl. $26^\circ\ 49'N$. Nova; Double; 9th and 11th magnitudes. Passy; September 9, 1825; Seven-feet Equatorial. Position $= 81^\circ\ 0'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 48'$ } Extremely difficult. Distance $= 7''.074$ | 5 Obs. | Diff. = $0''.360$ The small star is blue, and bears only the slightest illumination. Night hazy, but the stars are steady. Passy; October 11, 1825; Seven-feet Equatorial. 10th and 12th magnitudes. Position $= 83^\circ\ 22'\ nf$ | 5 Obs. | Diff. = $3^\circ\ 0'$ } Excessively difficult. Distance $= 6''.626$ | 5 Obs. | Diff. = $0''.553$ The night so very hazy, that I have no confidence in the observations of this double star. Mean Result. Position $82^\circ\ 11'\ nf$ (10 Obs.); Distance $6''.850$ (10 Obs.); Epoch 1825.73. No. DCCCXXII. R. A. $22^h\ 57^m$; Decl. $32^\circ\ 26'N$. Nova; Double; 9th and $9\frac{1}{2}$ magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. Position $= 70^\circ\ 26'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 5'$ } Very steady. Distance $= 3''.532$ | 5 Obs. | Diff. = $0''.432$ These stars bear a tolerable illumination. Night very fine. Passy; October 11, 1825; Seven-feet Equatorial. 10th and 11th magnitudes. Position $= 71^\circ\ 10'\ sf$ | 5 Obs. | Diff. = $2^\circ\ 45'$ } Excessively difficult. Distance $= 3''.337$ | 5 Obs. | Diff. = $0''.432$ The night so foggy, that the measures are very suspicious. Mean Result. Position $70^\circ\ 48'\ sf$ (10 Obs.); Distance $3''.434$ (10 Obs.); Epoch 1825.72. No. DCCCXXIII. R. A. $23^h\ 2^m$; Decl. $58^\circ\ 21'$ N. 2 Cassiopeiae; STRUVE, 772; VI. 55. Double; 6th and 9th magnitudes. Blackman-street; July 16, 1824; Five-feet Equatorial. | Position = $73^\circ\ 27'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 16'$ | | Distance = $2'\ 46''.397$ | 5 Obs. | Diff. = $0''.885$ | Stars $1\frac{1}{4}$ hour east of the meridian, at the time of observation. Passy; November 16, 1824; Seven-feet Equatorial. 6th and 9th magnitudes. | Position = $73^\circ\ 14'\ s.f$ | 5 Obs. | Diff. = $0^\circ\ 43'$ | | Distance = $2'\ 46''.969$ | 5 Obs. | Diff. = $0''.793$ | Mean Result. Position $73^\circ\ 20'\ s.f$; Distance $2'\ 46''.683$; Epoch 1824.70. Sir W. HERSCHEL gives no measures of this star. (H.) No. DCCCXXIV. R. A. $23^h\ 2^m$; Decl. $12^\circ\ 54'$ S. STRUVE, 774; Hist. Cael. 191. Double; equal; each of the 9th magnitude. Passy; October 7, 1824; Seven-feet Equatorial. | Position = $13^\circ\ 7'\ n.p$ or $s.f$ | 5 Obs. | Diff. = $1^\circ\ 44'$ | | Distance = $4''.092$ | 5 Obs. | Diff. = $0''.577$ | These stars bear a very tolerable illumination. Night peculiarly favourable. Passy; November 3, 1824; Seven-feet Equatorial. 9th and $9\frac{1}{2}$ magnitudes. | Position = $12^\circ\ 15'\ n.p$ | 5 Obs. | Diff. = $5^\circ\ 18'$ | Very difficult | | Distance = $4''.322$ | 5 Obs. | Diff. = $0''.529$ | Observed when half an hour west of the meridian. Mean Result. Position $12^\circ\ 41'\ n.p$ or $s.f$; Distance $4''.207$; Epoch 1824.80. and positions of 458 double and triple stars, &c. No. DCCCXXV. R. A. 23h 2m; Decl. 35° 55' N. Nova; Double; 6½ and 7th magnitudes. Passy; September 9, 1825; Seven-feet Equatorial. Position = 50° 23' np | 5 Obs. | Diff. = 1° 50' } Very steady. Distance = 1' 5".213 | 5 Obs. | Diff. = 0".481 } Passy; September 15, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 49° 34' np | 5 Obs. | Diff. = 1° 38' } Steady. Distance = 1' 5".449 | 5 Obs. | Diff. = 0".505 } Mean Result. Position 49° 58' np; Distance 1' 5".331; Epoch 1825.70. No. DCCCXXVI. R. A. 23h 5m; Decl. 9° 52' S. Struve, 775; H. C. 191. Triple; A 7½, B 8th, and C of the 10th magnitudes. Measures of A B. Passy; October 7, 1824; Seven-feet Equatorial. Position = 86° 17' sf | 5 Obs. | Diff. = 0° 32' } Unsteady. Distance = 26".178 | 5 Obs. | Diff. = 1".154 } Passy; November 15, 1824; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 86° 3' sf | 5 Obs. | Diff. = 1° 35' } Very unsteady. Distance = 26".374 | 5 Obs. | Diff. = 0".384 } Measures of A C. Passy; October 7, 1824; Seven-feet Equatorial. 7½ and 10th magnitudes. Position = 19° 24' sf | 2 Obs. | Diff. = 0° 12' } Very difficult. Distance = 2' 37".853 | 2 Obs. | Diff. = 0".986 } The small star is very faint, and bears but very little illumination. MDCCCXXVI. Mr. South's observations of the apparent distances No. DCCCXXVI. continued. Passy; November 15, 1824: Seven-feet Equatorial. 8th and 10th magnitudes. Position = $19^\circ 4' s.f$ | 5 Obs. | Diff. = $0^\circ 51'$ } Very difficult. Distance = $2' 40''.351$ | 3 Obs. | Diff. = $1''.250$ } Night is become so bad, that no more observations can be procured. Passy; September 28, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Distance = $2' 36''.985$ | 5 Obs. | Diff. = $0''.601$. Extremely difficult. The small star is very obscure. Mean Result. of A.B. Position $86^\circ 10' s.f$; Distance $26''.276$; Epoch 1824.82. of A.C. Position $19^\circ 10' s.f$ (7 Obs.); Epoch 1824.82; Distance $2' 38''.168$ (10 Obs.); Epoch 1825.13. No. DCCCXXVII. R.A. $23^h 6^m$; Decl. $10^\circ 4' S.$ ψ Aquarii; STRUVE, 776: IV. 12.* Double; 5th and 10th magnitudes. Passy; October 9, 1824; Seven-feet Equatorial. Position = $40^\circ 57' n.p$ | 5 Obs. | Diff. = $0^\circ 42'$ } Extremely difficult. Distance = $49''.630$ | 5 Obs. | Diff. = $0''.793$ } The small star scarcely bears the least illumination. Passy; November 3, 1824; Seven-feet Equatorial. 5th and 10th magnitudes. Position = $41^\circ 20' n.p$ | 5 Obs. | Diff. = $1^\circ 32'$ } Extremely difficult. Distance = $50''.041$ | 5 Obs. | Diff. = $1''.154$ } Observed when 40 minutes west of the meridian. Mean Result. Position $41^\circ 8' n.p$; Distance $49''.835$; Epoch 1824.80. * It seems probable, from the total disagreement of the distances, that the star here measured cannot be identical with IV. 12, though the angles agree within $3^\circ 34'$. The distance assigned by Sir W. HERSCHEL is $23'' 5'''$ "pretty exact." (H.) and positions of 458 double and triple stars, &c. No. DCCCXXVIII. R. A. 23h 13m; Decl. 34° 29' N. Nova; Double; 10th and 12th magnitudes; scarcely bear the least illumination. Passy; September 10, 1825; Seven-feet Equatorial. Position = 87° 5' sp | 5 Obs. | Diff. = 3° 57' } Hazy. Distance = 5°.292 | 5 Obs. | Diff. = 0°.673 } The measures are of such extreme difficulty, that I consider their accuracy open to suspicion. The small star is seen but with the utmost attention. Passy; September 15, 1825; Seven-feet Equatorial. 9th and 12th, or 14th magnitudes. Position = 85° 22' sp | 5 Obs. | Diff. = 2° 3' } Very steady. Distance = 4°.943 | 5 Obs. | Diff. = 0°.505 } The small star decidedly pale blue, and bears but the most feeble illumination: the observations are so excessively difficult, that the results are somewhat questionable. Mean Result. Position 86° 13' sp; Distance 5°.117; Epoch 1825.70. No. DCCCXXIX. R. A. 23h 14m; Decl. 9° 27' S. STRUVE, 778; P. XXIII. 69. Double; 7½ and 8th magnitudes. Passy; October 9, 1824; Seven-feet Equatorial. Position = 4° 28' np | 5 Obs. | Diff. = 1° 1' } Distance = 8°.144 | 5 Obs. | Diff. = 0°.721 } Passy; November 3, 1824; Seven-feet Equatorial. 7½ and 8th magnitudes. Position = 3° 40' np | 5 Obs. | Diff. = 1° 9' } Distance = 7°.819 | 5 Obs. | Diff. = 0°.649 } Observed when 70 minutes west of the meridian. Mean Result. Position 4° 4' np; Distance 7°.981; Epoch 1824.80. Mr. South's observations of the apparent distances No. DCCCXXX. R. A. $23^h\ 18^m$; Decl. $0^\circ\ 16'N$. $\alpha$ Piscium; STRUVE, 782; VI. 62. Double; 5th and 12th magnitudes. Passy; October 9, 1824; Seven-feet Equatorial. Position = $74^\circ\ 42'\ np$ | 5 Obs. | Diff. = $1^\circ\ 3'$ } Excessively difficult. Distance = $2'\ 29''.548$ | 5 Obs. | Diff. = $2''.164$ } The small star under a very slight illumination, becomes invisible. Passy; November 9, 1824; Seven-feet Equatorial. 5th and 12th, or 13th magnitudes. Position = $75^\circ\ 10'\ np$ | 5 Obs. | Diff. = $1^\circ\ 32'$ } Excessively difficult. Distance = $2'\ 30''.632$ | 5 Obs. | Diff. = $2''.765$ } Night not very favourable. Mean Result. Position $74^\circ\ 56'\ np$; Distance $2'\ 30''.090$; Epoch 1824.82. Sir W. Herschel gives no measures of this star. (H.) No. DCCCXXXI. R. A. $23^h\ 21^m$; Decl. $4^\circ\ 17'N$. STRUVE, 783; MAYER. Double; 8th and $8\frac{1}{4}$ magnitudes. Passy; October 14, 1824; Seven-feet Equatorial. Position = $83^\circ\ 58'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Distance = $11''.654$ | 5 Obs. | Diff. = $0''.745$ } . . . Passy; November 3, 1824; Seven-feet Equatorial. 8th and $8\frac{1}{4}$ magnitudes. Position = $84^\circ\ 5'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 17'$ } Distance = $11''.709$ | 5 Obs. | Diff. = $1''.274$ } . . . Stars 37 minutes west of the meridian, at the time of observation. Mean Result. Position $84^\circ\ 1'\ sp$; Distance $11''.681$; Epoch 1824.81. No. DCCCXXXII. R.A. 23\textsuperscript{h} 23\textsuperscript{m}; Decl. 42° 50' N. II. 94? or Nova?* Double; 9th and 11th, or 12th magnitudes. Passy; September 24, 1825; Seven-feet Equatorial. | Position = 44° 14' np | 5 Obs. | Diff. = 1° 8' | |-----------------------|------|--------------| | Distance = 4".374 | | | | Position = 39° 33' np | 5 Obs.| Diff. = 0°.553 | | Position = 38° 55' np | 5 Obs.| Diff. = 5° 2' | | | | | Capt. Beaufort. The small star is so extremely faint, that Capt. B. cannot procure any observations of distance. Night tolerably favourable. Passy; September 27, 1825; Seven-feet Equatorial. 9th and 12th magnitudes. | Position = 44° 45' np | 5 Obs. | Diff. = 4° 15' | |-----------------------|------|--------------| | Distance = 4".405 | | | | | | | Capt. Beaufort. Measures which merit but little confidence; the small star so excessively indistinct, that Captain Beaufort cannot obtain any observations. Mean Result. Position 41° 52' np (20 Obs.); Distance 4".389 (10 Obs.); Epoch 1825.74. Sir W. Herschel's observations of this star (if II. 94) are as follows: 1783.66, Position 34° 24' np; 1802.5, 35° 56' np. These compared with the present, present a great disagreement. If we take the mean of the two earlier observations we get 35° 10' np, and 1793.1 for a mean epoch, which compared with the measures of 1825 give an arc of 6° 42', described in an interval of 33 years, or about + 0°.203 per annum. The data, it is true, are precarious, but the conclusion is such as to render it worth while to watch this star in future. (H.) * This star was found by sweeping in the neighbourhood of the 784th star of Struve's Catalogue. The star however whose place is there given, was only seen as a single star: it is therefore very probable that the one here measured is Sir W. Herschel's star. Mr. South's observations of the apparent distances No. DCCCXXXIII. R. A. $23^h\ 32^m$; Decl. $5^\circ\ 17'$ N. Struve, 785; Hist. Cael. 128. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; October 9, 1824; Seven-feet Equatorial. Position = $40^\circ\ 59'\ np$ | 5 Obs. | Distance = $3^\circ\ 58'$. Passy; November 3, 1824; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $41^\circ\ 0'\ np$ | 5 Obs. | Diff. = $2^\circ\ 5'$ Distance = $14''.633$ | 5 Obs. | Diff. = $0''.601$ Passy; September 9, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. Position = $42^\circ\ 44'\ np$ | 5 Obs. | Diff. = $1^\circ\ 32'$ Distance = $14''.518$ | 5 Obs. | Diff. = $0''.986$ Difficult. During the observations, the small star was frequently very indistinct. Night very hazy. Mean Result. Position $41^\circ\ 34'\ np$; (15 Obs.); Epoch 1825.10; Distance $14''.575$; (10 Obs.); Epoch 1825.26. No. DCCCXXXIV. R. A. $23^h\ 38^m$; Decl. $27^\circ\ 28'$ N. Struve, 787; IV. 107. Double; 6th and 10th magnitudes. Passy; October 14, 1824; Seven-feet Equatorial. Position = $53^\circ\ 50'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 15'$ Distance = $32''.481$ | 5 Obs. | Diff. = $1''.587$ Extremely difficult. Night is very fine, but the small star scarcely bears any illumination. Passy; November 3, 1824; Seven-feet Equatorial. 6th and 11th, or 12th magnitudes. Position = $53^\circ\ 13'\ nf$ | 5 Obs. | Diff. = $2^\circ\ 10'$ Distance = $31''.666$ | 2 Obs. | Diff. = $0''.192$ Excessively difficult. The small star will not bear the slightest illumination. Mean Result. Position $53^\circ\ 31'\ nf$ (10 Obs.); Distance $32''.248$ (7 Obs); Epoch 1824.81. The present angle differs — $3^\circ\ 10'$ from that of 1783. (H.) No. DCCCXXXV. R. A. $23^h\ 39^m$; Decl. $3^\circ\ 46'$. S. 20 Piscium; STRUVE, 788. Double; 6th and 12th magnitudes; small, blue. Passy; October 14, 1824; Seven-feet Equatorial. Position = $17^\circ\ 10'\ np$ | 5 Obs. | Diff. = $0^\circ\ 25'$ Distance = $2'\ 50''.500$ | 5 Obs. | Diff. = $2''.524$ Excessively difficult. Night extremely fine, but the small star will scarcely bear any illumination. Passy; November 25, 1824; Seven-feet Equatorial. 7th and 15th magnitudes. Position = $17^\circ\ 17'\ np$ | 5 Obs. | Diff. = $0^\circ\ 33'$ Excessively difficult. Observations of distance cannot be procured, although the night is fine. Passy; September 28, 1825; Seven-feet Equatorial. 6th and 12th, or 14th magnitudes. Distance = $2'\ 51''.349$ | 5 Obs. | Diff. = $0''.913$ Excessively difficult. The small star becomes invisible under the most feeble illumination. Mean Result. Position $17^\circ\ 13'\ np$; Epoch 1824.83; Distance $2'\ 50''.924$; Epoch 1825.26. No. DCCCXXXVI. R. A. $23^h\ 49^m$; Decl. $23^\circ\ 22'$. N. Nova; Double; $8\frac{1}{2}$ and 11th magnitudes. Passy; September 10, 1825; Seven-feet Equatorial. Position = $43^\circ\ 54'\ np$ | 5 Obs. | Diff. = $0^\circ\ 35'$ Distance = $9''.471$ | 5 Obs. | Diff. = $0''.481$ Hazy. The small star is so extremely indistinct, and the measures so excessively difficult, that the results are perhaps a little inaccurate. Passy; September 15, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 11th magnitudes. Position = $45^\circ\ 23'\ np$ | 5 Obs. | Diff. = $4^\circ\ 4'$ Distance = $9''.252$ | 5 Obs. | Diff. = $0''.962$ Excessively difficult. The small star is pale blue, and bears but the slightest illumination. Mean Result. Position $44^\circ\ 38'\ np$; Distance $9''.361$; Epoch 1825.70. Mr. South's observations of the apparent distances, &c. No. DCCCXXXVII. R. A. $23^h\ 54^m$; Decl. $65^\circ\ 6'N.$ Struve, 794. Double; 8th and 9th magnitudes. Passy; October 21, 1824; Seven-feet Equatorial. | Position | Distance | Obs. | Diff. | |----------|----------|------|-------| | $20^\circ\ 6'nf$ | $15''.520$ | 5 | $3^\circ\ 22'$ | | $18^\circ\ 15'nf$ | $15''.285$ | 2 | $0^\circ\ 30'$ | Passy; October 7, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. | Position | Distance | Obs. | Diff. | |----------|----------|------|-------| | $19^\circ\ 48'nf$ | $15''.618$ | 5 | $0^\circ\ 45'$ | | $18^\circ\ 44'nf$ | $15''.287$ | 5 | $1^\circ\ 5'$ | During Capt. Beaufort's observations, the stars became very faint, in consequence of the deposition of dew on the exterior and interior surfaces of the object-glass. Mean Result. Position $19^\circ\ 24'nf$ (17 Obs.) ; Distance $15''.427$ (20 Obs.); Epoch 1825.28. No. DCCCXXXVIII. R. A. $23^h\ 55^m$; Decl. $61^\circ\ 17'N.$ 9 Cassiopeiae; Struve, 795; V. 79.* Double; 6th and 10th magnitudes; small, blue. Passy; October 21, 1824; Seven-feet Equatorial. | Position | Distance | Obs. | Diff. | |----------|----------|------|-------| | $74^\circ\ 25'sp$ | $4'5''.682$ | 5 | $0^\circ\ 29'$ | | $74^\circ\ 21'sp$ | $4'5''.165$ | 5 | $1''\ 154$ | Passy; November 16, 1824; Seven-feet Equatorial. 6th and 10th magnitudes. | Position | Distance | Obs. | Diff. | |----------|----------|------|-------| | $74^\circ\ 25'sp$ | $4'5''.423$ | 5 | $0^\circ\ 32'$ | Mean Result. Position $74^\circ\ 23'sp$; Distance $4'5''.423$; Epoch 1824.84. * The star here measured is called V. 79 in M. Struve's Catalogue, but is manifestly a different star. (H.) RE-EXAMINATION OF THIRTY-SIX DOUBLE AND TRIPLE STARS, THE DISTANCES AND POSITIONS OF WHICH, AS OBSERVED BY MR. HERSCHEL AND MR. SOUTH, WERE PUBLISHED IN THE PHILOSOPHICAL TRANSACTIONS FOR 1824. No. I. R. A. $0^h\ 38^m$; Decl. $56^\circ\ 51'$ N. $\eta$ Cassiopeiæ; III. 3; H. and S. 8. Double; 6th and 9th magnitudes. Passy; October 7, 1825; Seven-feet Equatorial. | Position | Distance | |----------|----------| | $8^\circ\ 21'\ n^f$ | $9''.968$ | | Obs. | Diff. | |------|------| | 7 | $2^\circ\ 3'$ | | 5 | $0''.889$ | Night not at present favourable. Observed when 40 minutes west of meridian. Passy; October 11, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. | Position | Distance | |----------|----------| | $6^\circ\ 42'\ n^f$ | $9''.959$ | | Obs. | Diff. | |------|------| | 7 | $1^\circ\ 36'$ | | 5 | $0''.432$ | Night foggy; the small star very indistinct: observed when 50' west of meridian. Passy; October 12, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. | Position | Distance | |----------|----------| | $6^\circ\ 2'\ n^f$ | $9''.736$ | | Obs. | Diff. | |------|------| | 7 | $1^\circ\ 26'$ | | 5 | $0''.745$ | Observed when one hour west of the meridian with 181. The stars, which have hitherto been remarkably steady and well defined, are now suddenly so excessively unsteady and ill defined, that to persevere in observing is altogether useless. MDCCCXXVI. No. I. R. A. $0^h 38^m$; Decl. $56^\circ 51' N.$ $\eta$ Cassiopeiae; III. 3; H. and S. 8. continued. Passy; October 13, 1825; Seven-feet Equatorial. 7th and 10th, or 11th magnitudes. Position = $5^\circ 59' nf$ | 7 Obs. | Diff. = $4^\circ 3'$ } Very difficult. Distance = $9''.911$ | 5 Obs. | Diff. = $6''.264$ Observed when one hour west of the meridian. The fog is now become so dense, that the stars are scarcely perceptible. Passy; October 16, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $6^\circ 27' nf$ | 7 Obs. | Diff. = $2^\circ 40'$ } Difficult. Distance = $10''.067$ | 5 Obs. | Diff. = $6''.384$ Night very foggy; stars ill defined and unsteady. A continuation of bad weather from this date till the 22nd instant, when the observatory at Passy was demolished, rendered further observations of this star impracticable. Mean Result. Position $6^\circ 55' nf$ (42 Obs.); Distance $9''.904$ (30 Obs.); Epoch 1825.78. In 1821.9 the angle was measured at $7^\circ 9' nf$. The motion therefore in 3.9 years appears only to have been $0^\circ 14'$, direct, whereas computing on the annual motion $+0''.5133$ it should be $2^\circ 0'$. The observation of 1821 is a mean of not more than 7 single measures. It is possible therefore that it may be somewhat erroneous, though probably not to the whole extent ($1^\circ 46'$) which this discordance would require; yet a trifling error in the present measure or in the angular velocity would reconcile all. Meanwhile the main point, the direction of the motion, agreeing, may be regarded as confirming the result already arrived at. (H.) No. II. R. A. $5^h\ 0^m$; Decl. $8^\circ\ 53\frac{1}{2}'$ S. IV. 43; H. and S. 50. Double; 8th and 10th magnitudes; small, blue, and bears only a very feeble illumination. Passy; January 17, 1825; Seven-feet Equatorial. Position = $8^\circ\ 17'\ nf$ | 5 Obs. | Diff. = $1^\circ\ 49'$ } Extremely difficult. Distance = $20''.755$ | 5 Obs. | Diff. = $1''.154$ } Observed when 10 minutes west of the meridian; the dew on the object-glass is very troublesome. Passy; January 19, 1825; Seven-feet Equatorial. 8th and 11th, or 12th magnitudes. Position = $9^\circ\ 8'\ nf$ | 5 Obs. | Diff. = $0^\circ\ 45'$ } Extremely difficult. Distance = $22''.349$ | 5 Obs. | Diff. = $1''.202$ } Observations made on the meridian; night very fine. Passy; February 6, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Distance = $22''.643$ | 5 Obs. | Diff. = $1''.779$. Extremely difficult. Should this set favour one series of the former observations more than the other, I feel so little confidence in them whilst obtaining them, that I would not reject either, but would prefer receiving the mean of all, as a final determination. Night tolerably clear, and the stars very steady. Mean Result. Position $8^\circ\ 42'\ nf$ (10 Obs.); Epoch 1825.05; Distance $21''.916$ (15 Obs.); Epoch 1825.06. Until arranging the work for presentation to the Royal Society, I was not aware that the former memoir contained the following observations of this double star, made by Mr. Herschel and myself. Position $10^\circ\ 6'\ nf$; Distance $21''.763$; Epoch 1821.97. No. III. R. A. $5^h\ 22^m$; Decl. $16^\circ\ 55'$ N. III. 93; H. and S. 58. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; December 23, 1824; Seven-feet Equatorial. Position = $51^\circ\ 27'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 12'$ } Night very bad. Distance = $11''.031$ | 5 Obs. | Diff. = $0''.505$ } Passy; December 23, 1824; Portable Transit. Observed R. A. of the larger star = $5^h\ 22'\ 8''.06$. Passy; December 31, 1824; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $51^\circ\ 9'\ sf$ | 5 Obs. | Diff. = $2^\circ\ 35'$ } Very unsteady. Distance = $10''.692$ | 5 Obs. | Diff. = $0''.360$ } Night unfavourable; stars not well defined. Mean Result. Position $51^\circ\ 18'\ sf$; Distance $10''.861$; Epoch 1824.99. This star was re-measured unintentionally; I was not aware that observations of it were communicated in the former memoir, which give for the Position $52^\circ\ 4'\ sf$; and Distance $9''.790$; Epoch 1821.96. The positions agree very well, but the distances differ more than could be wished. No. IV. R. A. $6^h\ 20^m$; Decl. $6^\circ\ 55'$ S. 11 Monocerotis; H. and S. 71. Triple; perhaps quadruple; but the fourth star is very distant. A $6\frac{1}{2}$, B 7th, C $7\frac{1}{2}$, and D of the 10th magnitudes. Measures of A B. Blackman-street; February 15, 1824; Five-feet Equatorial. Position = $49^\circ\ 38'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 50'$ } SOUTH. Distance = $8''.280$ | 5 Obs. | Diff. = $0''.221$ } Blackman-street; March 2, 1824; Five-feet Equatorial. Position = $40^\circ\ 5'\ sf$ | 4 Obs. | Diff. = $0^\circ\ 45'$ } Mr. Herschel. Distance = $7''.700$ | 5 Obs. | Diff. = $0''.727$ } Night hazy. and positions of 36 double and triple stars, &c. No. IV. R. A. $6^\text{h} 20^\text{m}$; Decl. $6^\circ 55'$. S. 11 Monocerotis; H. and S. 71. continued. Measures of B C. Blackman-street; February 15, 1824; Five-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. | Position = $13^\circ 53' sf$ | 5 Obs. | Diff. = $2^\circ 26'$ } South. | Distance = $3''.266$ | 5 Obs. | Diff. = $0''.758$ } | Blackman-street; March 2, 1824; Five-feet Equatorial. | Position = $13^\circ 25' sf$ | 5 Obs. | Diff. = $1^\circ 10'$ } Mr. Herschel. | Distance = $3''.309$ | 2 Obs. | Diff. = $0''.253$ } | Night hazy. Observations of the distant star cannot be obtained. Measures of B D. Blackman-street; February 15, 1824; Five-feet Equatorial. 7th and 10th magnitudes. | Position = $66^\circ 33' np$ | 3 Obs. | Diff. = $0^\circ 50'$ } South. | Distance = $4' 10''.957$ | 3 Obs. | Diff. = $0''.885$ } | Mean Result. of A B. Position $40^\circ 23' sf$ (9 Obs.); Distance $7''.990$ (10 Obs.); Epoch 1824.12. of B C. Position $13^\circ 39' sf$ (10 Obs.); Distance $3''.278$ (7 Obs.); Epoch 1824.12. of B D. Position $66^\circ 33' np$ (3 Obs.); Distance $4' 10''.957$ (3 Obs.); Epoch 1824.12. This star was measured under the idea that it was an unobserved star. Our measures in the former paper are for the position of A B. $39^\circ 29' sf$; of B C. $10^\circ 41' sf$; of AD. $67^\circ 20' np$; 1822.09; and for the distance, of A B. $6''.862$; of B C. $3''.243$. The distances ascribed to A B disagree, it is true, more than a second, a very considerable quantity on so small a distance, it must be confessed. It is probable that the real distance is a mean between them, or $7''.42$. Mr. South's re-examination of the apparent distances No. V. R. A. $6^\text{h} 30^\text{m}$; Decl. $59^\circ 37'$ N. 12 Lyncis; I. 6 and III. 22; H. and S. 74. Triple; A of the 7th, B of the $7\frac{1}{2}$, and C of the 9th magnitudes. Measures of A B. Passy; April 1, 1825; Seven-feet Equatorial. Position = $63^\circ 32' sf$ | 6 Obs. | Diff. = $4^\circ 45'$. Very unsteady. Observed when $1\frac{1}{2}$ hour west of the meridian with 273. Passy; April 3, 1825; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $66^\circ 22' sf$ | 7 Obs. | Diff. = $2^\circ 59'$ } By strong twilight. Distance = $2''.488$ | 5 Obs. | Diff. = $0''.264$ Observed when one hour west of the meridian, with a power of 413, which separates the discs of the stars completely: they are most beautifully defined. The measures of distance are a little difficult, because the instrument is thrown into tremours by the wind: the sun scarcely below the horizon when the observations were taken. No artificial illumination necessary. Passy; April 4, 1825; Seven-feet Equatorial. 7$\frac{1}{2}$ and 8th magnitudes. Position = $63^\circ 15' sf$ | 7 Obs. | Diff. = $2^\circ 30'$ } Difficult. Distance = $2''.469$ | 5 Obs. | Diff. = $0''.553$ One hour and a half west of the meridian when observed with 413; stars at times well defined, but are very unsteady. Passy; April 5, 1825; Seven-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $63^\circ 59' sf$ | 7 Obs. | Diff. = $3^\circ 11'$ } Unsteady. Distance = $2''.630$ | 5 Obs. | Diff. = $0''.432$ Observed with 413. Measures of A C. Passy; April 1, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = $34^\circ 10' np$ | 6 Obs. | Diff. = $2^\circ 0'$. Very unsteady. Observed when $1\frac{1}{2}$ hour west of the meridian with 273. No. V. R. A. 6\textsuperscript{h} 30\textsuperscript{m}; Decl. 59° 37' N. 12 Lyncis; I. 6. and III. 22; H. and S. 74. continued. Passy; April 3, 1825; Seven-feet Equatorial. 7th and 9\(\frac{1}{2}\) magnitudes. Position = \(36° 35'\ np\) | 7 Obs. | Diff. = \(2° 11'\) } By twilight. Distance = \(8''.754\) | 5 Obs. | Diff. = \(0''.312\) } Angles obtained with the greatest facility; distances rather difficult, the instrument being agitated by the wind; magnifying power used 413. Passy; April 4, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 9\(\frac{1}{2}\) magnitudes. Position = \(35° 13'\ np\) | 7 Obs. | Diff. = \(1° 20'\) } Unsteady. Distance = \(9''.379\) | 5 Obs. | Diff. = \(0''.360\) } Observed with 413, when 1\(\frac{3}{4}\) hour west of the meridian. Passy; April 5, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 9th magnitudes. Position = \(35° 17'\ np\) | 7 Obs. | Diff. = \(1° 58'\) } Unsteady. Distance = \(9''.420\) | 5 Obs. | Diff. = \(0''.577\) } Observed with 413. Mean Result. of A B. Position \(64° 21'\ sf\) (27 Obs.); Distance \(2''.529\) (15 Obs.); of A C. Position \(35° 21'\ np\) (27 Obs.); Distance \(9''.184\) (15 Obs.); Epoch 1825.25. There is a considerable change in the position of the close star since the year 1823. At that time (1823.28) the angle was \(68° 39'\ sf\) (See Phil. Trans. 1824. Part III.) Hence it appears that the small star has continued its motion in the direction there assigned to it; and, if we may confide sufficiently in both data, with an accelerated velocity, for the computed motion corresponding to an interval of 2.0 years would be \(-1°.148\), whereas the observations make it \(-4° 18'\) or \(-4°.3\). Meanwhile the direction of the motion is as predicted, and we may therefore regard the reality of this star's rotation as fully confirmed. (H.) Mr. South's re-examination of the apparent distances No. VI. R. A. 7h 23m; Decl. 32° 17' N. Castor; II. 1; H. and S. 81. Double; 3rd and 4th magnitudes. Passy; February 18, 1825; Seven-feet Equatorial. Position = 7° 8' sp | 10 Obs. | Diff. = 1° 54'. Tolerably steady. Observed within half an hour of either side of the meridian; no other double star visible. During the measures, the larger star passed through all gradations of magnitude, between the third and ninth; a circumstance which it is necessary to mention, as in taking the mean they ought not to be allowed a value, proportional to their number. Passy; March 31, 1825; Seven-feet Equatorial. 3rd and 4th magnitudes. Position = 6° 51' sp | 7 Obs. | Diff. = 0° 59'. Tolerably steady. Observed when 12 minutes west of the meridian. Passy; April 3, 1825; Seven-feet Equatorial. 3rd and 4th magnitudes. Position = 5° 59' sp | 7 Obs. | Diff. = 1° 36' } By daylight. Distance = 4".489 | 5 Obs. | Diff. = 0".529 } Stars beautifully defined, and as steady as possible; the sun shining; not a cloud visible: observations made with 787. Passy; April 4, 1825; Seven-feet Equatorial. 3rd and 4th magnitudes. Position = 7° 3' sp | 7 Obs. | Diff. = 1° 11' } Unsteady. Distance = 4".796 | 5 Obs. | Diff. = 0".288 } Observed with 181, when 20 minutes west of the meridian. Passy; April 5, 1825; Seven-feet Equatorial. 3rd and 4th magnitudes. Position = 6° 48' sp | 7 Obs. | Diff. = 1° 24' } By twilight. Distance = 4".958 | 5 Obs. | Diff. = 0".481 } Observed on the meridian with 787; stars exquisitely defined, and as steady as possible. Passy; April 6, 1825; Seven-feet Equatorial. 3rd and 4th magnitudes. Position = 6° 22' sp | 7 Obs. | Diff. = 1° 18' } By daylight. Distance = 4".826 | 5 Obs. | Diff. = 0".481 } The sun shining; stars very steady, and extremely well defined. Observations made with 513, when 10 minutes east of the meridian. and positions of 36 double and triple stars, &c. No. VI. R. A. $7^h\ 23^m$; Decl. $32^\circ\ 17'N.$ Castor; II. 1; H. and S. 81. continued. Mean Result. Position $6^\circ\ 42'\ s.p$ (42 Obs.); Epoch $1825.23$; Distance $4''.767$ (20 Obs.); Epoch $1825.26$. Note; In taking the mean, the ten observations of February 18 are considered equivalent to the seven of which the other sets are composed. These measures, compared with those recorded in the Philosophical Transactions for 1824, afford, in the short interval of $2y.12$, a very satisfactory verification of the quantity as well as of the direction of the motion there assigned. The angle at that epoch ($1823.11$) was $5^\circ\ 1'\ s.p$. It is now $6^\circ\ 42'\ s.p$. The motion then is $-1^\circ\ 41'$ or retrograde, as it ought to be. Now, if we compute the motion on the supposition of the actual angular velocity being (as there assigned) $-0^\circ.777$, we shall find $-1^\circ\ 38'$, differing insensibly from the observed quantity. That this degree of exactness is not quite accidental, other similar instances to be adduced will convince us. (H.) No. VII. R. A. $7^h\ 58^m$; Decl. $28^\circ\ 0'N.$ 11 Cancri; I. 11; H. and S. 88. Double; 8th and $9\frac{1}{2}$ magnitudes. Blackman-street; March 12, 1824; Five-feet Equatorial. Position $=83^\circ\ 24'\ n.p$ | 5 Obs. | Diff. $=3^\circ\ 0'$ } Distance $=4''.694$ | 5 Obs. | Diff. $=0''.853$ } Blackman-street; March 31, 1824; Five-feet Equatorial. 8th and $9\frac{1}{2}$ magnitudes. Position $=83^\circ\ 7'\ n.p$ | 5 Obs. | Diff. $=2^\circ\ 46'$ } Distance $=4''.659$ | 5 Obs. | Diff. $=0''.221$ } MDCCCXXVI. Mr. South's re-examination of the apparent distances No. VII. R. A. $7^h\ 58^m$; Decl. $28^\circ\ 0'$ N. 11 Cancri; I. 11; H. and S. 88. continued. Mean Result. Position $83^\circ\ 15'\ np$; Distance $4''.676$; Epoch $1824.21$. When this star was measured, I supposed it to be the star whose R. A. in Struve's Catalogue is given $7^h\ 54'.5$; Decl. $28^\circ\ 0'$ N.; whether it is, or is not 11 Cancri, I cannot say; but it is unquestionably synonymous with the double star No. 88 of the collection observed by H. and S. and is the star observed by Sir W. Herschel. Our former measures were, Position $84^\circ\ 30'\ np$; Distance $4''.498$; Epoch $1822.21$. No. VIII. R. A. $8^h\ 2^m$; Decl. $18^\circ\ 11'$ N. ζ Cancri; I. 24 and III. 19; H. and S. 90. A very pretty double star; $6\frac{1}{2}$ and 7th magnitudes. Blackman-street; March 13, 1824; Five-feet Equatorial. Position = $67^\circ\ 51'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 51'$ } Remarkably steady. Distance = $6''.209$ | 5 Obs. | Diff. = $0''.853$ } Observations extremely satisfactory. Blackman-street; March 31, 1824; Five-feet Equatorial. 7th and $7\frac{1}{2}$ magnitudes. Position = $71^\circ\ 9'\ sf$ | 5 Obs. | Diff. = $0^\circ\ 55'$ } Tolerably steady. Distance = $6''.181$ | 5 Obs. | Diff. = $0''.695$ } Observed when two hours west of the meridian; but the stars are well defined. Passy; January 17, 1825; Seven-feet Equatorial. 7$\frac{1}{2}$ and 8th magnitudes. Position = $70^\circ\ 15'\ sf$ | 5 Obs. | Diff. = $1^\circ\ 49'$ The position observed on March 13th, 1824, differs more than might be wished with that obtained subsequently; still the favourable circumstances under which the discordant set was procured, would not justify their rejection; allowing all equal weight, we have for the and positions of 36 double and triple stars, &c. No. VIII. R. A. 8ʰ 2′; Decl. 18° 11′ N. ζ Cancri; I. 24 and III. 19; H. and S. 90. continued. Mean Result. Position 69° 45′ sf (15 Obs.); Epoch 1824.49; Distance 6''.195 (10 Obs.); Epoch 1824.22. When this star was observed in Blackman-street, in 1824, and again at this place in January of the present year, I re- garded it as a new double star, and registered the observa- tions of it as such; a comparison however of the results with the measures of ζ Cancri, leaves no room to doubt that the two stars are identical. Our former measures were Position 68° 17′ sf; Distance 6''.241; Epoch 1822.14. Observations however which immediately follow, show that the larger star is itself double; hence some suspicion as to the accuracy of these and of former measures will naturally arise. Passy; April 3, 1825; Seven-feet Equatorial. Triple; A of the 7th, B of the 8th, and C of the 8th magnitudes. Measures of A.B. The eye-pieces adapted to the micrometer hitherto used with this instrument being inadequate to communicate to the telescope sufficient magnifying power to enable me to pro- cure measures of this interesting close double star, I applied the micrometer of the Five-feet Equatorial,* which I had for- tunately brought with me from England: the powers thus obtained are 92, 157, 181, 327, 413, 513 and 787. As to the * To effect this change of micrometers, an alteration of the eye-tubes became necessary; on this, as on every other occasion, Monsr. Gambev supplied my wants so expeditiously, and at the same time so completely, that during my abode here, I scarcely felt the loss of Mr. Troughton. The advantage of having a first-rate Artist, resident within striking distance of our observatory, is almost incalculable. Passy, Oct. 22, 1825. Mr. South's re-examination of the apparent distances No. VIII. R. A. $8^h\ 2^m$; Decl. $18^\circ\ 11'$ N. ζ Cancri; I. 24 and III. 19; H. and S. 90. continued. value of the micrometer in seconds, rigorous examination has satisfied me that it is precisely the same with that of the micrometer formerly employed. The observations of this date, and of all subsequent to it, will be made by means of this micrometer. Position = $31^\circ\ 21'\ n.f$ | 7 Obs. | Diff. = $4^\circ\ 0'$ } Difficult. Distance = $0''.887$ | 5 Obs. | Diff. = $0''.192$ } Difficult. Observed with 413, when a few minutes west of the meridian; the angles I consider very good; but the distances are perhaps a little inaccurate: the stars are well defined, but are very unsteady. Passy; April 4, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $32^\circ\ 18'\ n.f$ | 7 Obs. | Diff. = $6^\circ\ 2'$. Difficult. I cannot procure any measures of distance, the extreme unsteadiness of the stars rendering it impossible. Observed with 413. Stars tolerably well defined, and on the meridian at the time of observation. Passy; April 5, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $32^\circ\ 51'\ n.f$ | 7 Obs. | Diff. = $9^\circ\ 12'$ } Difficult. Distance = $1''.044$ | 5 Obs. | Diff. = $0''.216$ } Difficult. Observed with 413, a few minutes east of the meridian; stars unsteady, but at times well defined. Passy; April 8, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $32^\circ\ 4'\ n.f$ | 7 Obs. | Diff. = $7^\circ\ 28'$. Difficult. Observed on the meridian with 413, but the stars are so unsteady, that measures of distance are impracticable. Passy; April 14, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $32^\circ\ 0'\ n.f$ | 7 Obs. | Diff. = $4^\circ\ 7'$. Very difficult. Observed with 413, with which power no measures of distance can be procured, owing to the extreme unsteadiness of the stars. I therefore applied 327, and obtained as results, and positions of 36 double and triple stars, &c. No. VIII. R. A. 8\textsuperscript{h} 2\textsuperscript{m}; Decl. 18\textsuperscript{o} 11'\textsuperscript{N}. ζ Cancri; I. 24 and III. 19; H. and S. 90. continued. Position = 32° 25' nf | 8 Obs. | Diff. = 5° 35' \{ Very difficult. Distance = 1''.327 | 5 Obs. | Diff. = 0''.432 \} Stars one hour west of the meridian when observed. By twilight, the sun below the horizon but a very few minutes, I saw the star decidedly double with a power of 181 only. Measures of A C. Passy; April 1, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = 68° 26' sf | 6 Obs. | Diff. = 2° 35'. Steady. Observed when 35 minutes west of the meridian, with a power of 273. The angle thus obtained may be liable to an error of one or two degrees, for I see the large star unquestionably elongated; but the eye-piece now in use is the deepest magnifier which is adapted to this micrometer, and it is inadequate to separate the stars sufficiently to enable me to procure measures of them. At the time of perceiving the star elongated, I was unaware that it had been observed by Sir William Herschel as a close double star, as also that Mr. Herschel and myself, when we observed it in England as double of the 3rd class, had noted that "it is not to be seen triple, although beautifully defined and round." Vide Observations of the apparent Distances, &c. Phil. Trans. 1824. Part III. page 115. Passy; April 3, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = 67° 16' sf | 7 Obs. | Diff. = 2° 0' \{ Very difficult. Distance = 5''.287 | 6 Obs. | Diff. = 0''.601 \} Observed with 413, when half an hour west of the meridian; stars extremely unsteady. No. VIII. R. A. $8^h\ 2^m$; Decl. $18^\circ\ 11'$ N. ζ Cancri; I. 24 and III. 19; H. and S. 90. continued. Passy; April 4, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $67^\circ\ 14'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 30'$. Very difficult. Observed with 413, when a few minutes west of the meridian; but the unsteadiness of the stars renders it impossible to procure any observations of distance. Passy; April 5, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $68^\circ\ 49'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 27'$ Distance = $5''.616$ | 5 Obs. | Diff. = $0''.673$ Very difficult. Observed a few minutes west of the meridian with 413; stars well defined, but very unsteady. Mean Result. of A B. Position $32^\circ\ 10'\ n.f$ (43 Obs.); Distance $1''.086$ (15 Obs); of A C. ——— $67^\circ\ 55'\ s.f$ (27 Obs.); ——— $5''.436$ (11 Obs.); Epoch 1825.27. Note. The observations of A C, when the star A was only seen as a single star, are rejected. This star presents the hitherto unique combination of three individuals, forming, if not a system connected by the agency of attractive forces, at least one in which all the parts are in a state of relative motion. To begin with the two nearer stars A and B. Sir W. Herschel's measure of their position Nov. 28, 1781 ($1781.90$) was $86^\circ\ 32'\ n.f.$ and it will be remarked, that a position so nearly perpendicular to the diurnal motion carries in some measure its own verification with it, as not liable to gross error. This differs no less than $54^\circ\ 22'$ from the present angle in the same quadrant, giving a mean annual motion of $+1^\circ.254$ or direct ($n.f\ s.p$). The distance remains as it was, so close as to be barely separable. In 1802 it was so also; but at that time, though observed by and positions of 36 double and triple stars, &c. No. VIII. R. A. $8^h\ 2^m$; Decl. $18^\circ\ 11'$ N. ζ Cancri; I. 24. and III. 19; H. and S. 90; continued. Sir W. Herschel, no measures could be procured, which is much to be regretted. The evidence for the motion of the more distant star C will be found in the Philosophical Transactions, 1824, Part III. p. 115. The change of quadrant—the great amount of the motion ($23^\circ\ 42'$ in $40\frac{1}{4}$ years) and the circumstance of an error to that amount, or anything like it, being perfectly impossible from the considerable distance of the stars; add, too, the regular gradations by which the change appears, from several intervening observations, to have taken place; all these considerations place the motion of the distant star beyond dispute, and the present measures confirm it, the angle $67^\circ\ 55'\ sf$ compared with that of $1822\ (68^\circ\ 17'\ sf)$ indicating a motion still in the same direction. Its amount, it is true, is only $-22'$ instead of $-1^\circ\ 44'$ which the assigned velocity would give, but this is as near a coincidence as we have a right to expect in such small quantities. If this be really a Ternary system connected by the mutual attraction of its parts, its perturbations will present one of the most intricate problems in physical astronomy. The difficulty will not be diminished by the circumstance of the rotations of the two small stars about the large one being (apparently at least) performed in opposite directions, being the reverse of what obtains in our planetary system, or by that of the deviations of the relative angular velocities from Kepler's law, being such as to indicate either great masses in all the three bodies, great eccentricities in their orbits, or a different law of gravity from what obtains in our system. (H.) No. IX. R. A. $8^h 16'$; Decl. $25^\circ 7'$ N. $\nu'$ Cancri; II. 41; H. and S. 92. Double; 8th and 9th magnitudes; small, blue. Passy; April 1, 1825; Seven-feet Equatorial. Position = $52^\circ 13' nf$ | 6 Obs. | Diff. = $1^\circ 28'$ } Tolerably steady. Distance = $6''.919$ | 6 Obs. | Diff. = $0''.625$ } Observed with 179, when $\frac{1}{4}$ hour west of the meridian; the small star bears a very good illumination. Passy; April 3, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $52^\circ 47' nf$ | 7 Obs. | Diff. = $1^\circ 16'$ } Tolerably steady. Distance = $6''.552$ | 5 Obs. | Diff. = $0''.216$ } Observed when 40 minutes west of the meridian with 181; but examined with 413, with which power both stars are beautifully defined, and are as round as possible. Passy; April 4, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $52^\circ 57' nf$ | 7 Obs. | Diff. = $1^\circ 48'$ } Tolerably steady. Distance = $6''.773$ | 5 Obs. | Diff. = $0''.553$ } Observed with 181, when 25 minutes west of the meridian. Passy; April 5, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $51^\circ 56' nf$ | 7 Obs. | Diff. = $2^\circ 19'$ } Unsteady. Distance = $6''.713$ | 5 Obs. | Diff. = $0''.240$ } Passy; April 8, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $52^\circ 35' nf$ | 7 Obs. | Diff. = $1^\circ 5'$ } Tolerably steady. Distance = $6''.718$ | 5 Obs. | Diff. = $0''.216$ } Mean Result. Position $52^\circ 30' nf$ (34 Obs.); Distance $6''.742$ (26 Obs.); Epoch 1825.26, No. IX. R. A. $8^h\ 16^m$; Decl. $25^\circ\ 7'$ N. $\nu'$ Cancri; II. 41; H. and S. 92. continued. The position here given compared with that of 1822.16 (Philosophical Transactions 1824, III.) indicates a change of only $-0^\circ\ 17'$, being smaller, it is true, in quantity than the change ($-1^\circ\ 35'$) which ought to have taken place on the supposition of the angular velocity of $-0^\circ\cdot514$ there assigned, but in the right direction. If we recollect that the angle of 1822 is deduced from a mean of only 8 individual measures, it will not appear surprising that an error of a degree or somewhat more should have been committed in it. In such a case the coincidence of directions is in itself a confirmation as good as we have a right to look for. (H.) No. X. R. A. $10^h\ 10^m$; Decl. $20^\circ\ 45'$ N. $\gamma$ Leonis; I. 28; H. and S. 113; Double; 4th and 5th magnitudes. Passy; April 1, 1825; Seven-feet Equatorial. | Position = $11^\circ\ 43'\ s'f$ | 7 Obs. | Diff. = $4^\circ\ 56'$ | | Distance = $2''.476$ | 6 Obs. | Diff. = $0''.505$ | Observed on the meridian with 273; the stars well defined, but not steady. Passy; April 3, 1825; Seven-feet Equatorial. 4th and 5th magnitudes. | Position = $11^\circ\ 1'\ s'f$ | 7 Obs. | Diff. = $1^\circ\ 32'$ | | Distance = $3''.017$ | 5 Obs. | Diff. = $0''.384$ | Observed with 413; stars very well defined but extremely unsteady, rendering the observations, particularly those of distance, difficult. Passy; April 4, 1825; Seven-feet Equatorial. 4th and 5th magnitudes. | Position = $11^\circ\ 48'\ s'f$ | 7 Obs. | Diff. = $2^\circ\ 28'$ | Observed with 181; the extreme unsteadiness of the stars prevents me using a higher power. No observations of distance can be procured. MDCCCXXVI. No. X. R. A. $10^h\ 10^m$; Decl. $20^\circ\ 45'N.$ γ Leonis; I. 28; H. and S. 113; continued. Passy; April 12, 1825; Seven-feet Equatorial. 4th and 5th magnitudes. Position = $10^\circ\ 27'\ s.f$ | 7 Obs. | Diff. = $2^\circ\ 22'$ Distance = $2''.765$ | 5 Obs. | Diff. = $0''.432$ Observed with 327, the deepest power which the unsteadiness of the stars allows me to use advantageously. Passy; May 4, 1825; Seven-feet Equatorial. 4th and 5th magnitudes. Position = $10^\circ\ 7'\ s.f$ | 7 Obs. | Diff. = $4^\circ\ 10'$. Unsteady. Observed by twilight without artificial illumination, when 15 minutes west of the meridian. Passy; June 1, 1825; Seven-feet Equatorial. 4th and 5th magnitudes. Position = $12^\circ\ 36'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 58'$ Distance = $2''.652$ | 5 Obs. | Diff. = $0''.264$ Observed by daylight with 413, when 40 minutes west of the meridian; sun shining; not a cloud visible; stars at times well defined. Mean Result. Position $11^\circ\ 17'\ s.f$ (42 Obs.); Distance $2''.716$ (21 Obs.); Epoch 1825.30. This position, compared with that of 1822.44, gives a motion of $+2^\circ\ 53'$. The supposition of an annual motion of $+0^\circ.30$, assigned in the former Paper, would give $+0^\circ.54'$. The present observations therefore confirm this motion fully in point of reality, and direction, but indicate an acceleration which (considering the number of observations) may have some claims to probability. The distances disagree more than might have been expected. (H.) No. XI. R. A. $11^h\ 9^m$; Decl. $32^\circ\ 33'N.$ ξ Ursæ majoris; I. 2; H. and S. 122; Double; 6th and $6\frac{1}{4}$ magnitudes. Passy; February 28, 1825; Seven-feet Equatorial. Position = $24^\circ\ 53'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 42'$. Difficult. Stars ill defined and unsteady; observed with 273. Passy; March 7, 1825; Seven-feet Equatorial. $6\frac{1}{2}$ and 7th magnitudes. Position = $24^\circ\ 57'\ sp$ | 12 Obs. | Diff. = $2^\circ\ 30'$. Tolerably steady. Observed when 15 minutes west of the meridian with 273; stars well defined. Passy; March 20, 1825; Seven-feet Equatorial. 6th and $6\frac{1}{2}$ magnitudes. Position = $25^\circ\ 18'\ sp$ | 4 Obs. | Diff. = $1^\circ\ 35'$ Distance = $2''.029$ | 5 Obs. | Diff. = $0''.481$ Position = $25^\circ\ 11'\ sp$ | 6 Obs. | Diff. = $2^\circ\ 35'$ Distance = $2''.009$ | 5 Obs. | Diff. = $0''.264$ Mons. Bouvard. SOUTH. Observed when a few minutes east and west of the meridian with 273, but during the measures of distance extremely unsteady. Passy; March 21, 1825; Seven-feet Equatorial. $6\frac{1}{2}$ and 7th magnitudes. Position = $25^\circ\ 1'\ sp$ | 7 Obs. | Diff. = $2^\circ\ 0'$ Distance = $2''.572$ | 5 Obs. | Diff. = $0''.673$ On the meridian. Night hazy, stars tolerably steady, and are separated with a power of 179, with which the observations were procured. Passy; April 3, 1825; Seven-feet Equatorial. 6th and $6\frac{1}{4}$ magnitudes. Position = $25^\circ\ 22'\ sp$ | 7 Obs. | Diff. = $1^\circ\ 58'$ Distance = $2''.368$ | 5 Obs. | Diff. = $0''.216$ Well defined, but unsteady. Observed with 413, when 45 minutes west of the meridian. Passy; April 11, 1825; Seven-feet Equatorial. $6\frac{1}{2}$ and 7th magnitudes. Position = $26^\circ\ 12'\ sp$ | 7 Obs. | Diff. = $2^\circ\ 45'$ Position = $26^\circ\ 51'\ sp$ | 7 Obs. | Diff. = $0''.44$ Distance = $2''.387$ | 5 Obs. | Diff. = $0''.601$ Observed with 181. ...with 413. The position obtained with 181 was taken when the stars were 10 minutes east of the meridian, and the observations with 413 when they were 10 minutes west of it. No. XI. R. A. $11^h\ 9^m$; Decl. $32^\circ\ 33'$ N. ξ Ursæ majoris; I. 2; H. and S. 122. continued. Mean Result. Position $25^\circ\ 28'\ s p$ (55 Obs.); Epoch 1825.22; Distance $2''.442$ (15 Obs); Epoch 1825.25. In taking the mean the distances of March 20 are rejected; if not rejected, the mean of the 25 observations will give distance $2''.273$. Nothing can be more satisfactory than the confirmation these observations afford of the rapid motion ascribed to this remarkable star. In the interval of 1.97 year since the Epoch 1823.29 the motion has amounted to no less than $13^\circ\ 55'$, in the direction $n p s f$, or $-7^\circ.025$ per annum. The sudden diminution of velocity is however not confirmed. Indeed it rested on too short an interval, and on too few observations (for such very close stars) to deserve great confidence. We cannot do better than recommend this star for the next 10 or 20 years to the constant and careful measurement of astronomers; nor can we too strongly inculcate here the indispensable necessity of multiplying extremely their measures of position, to eliminate those errors of judgment to which the most experienced observers are liable in measures of this sort. This done, there is no doubt of our arriving at a precise knowledge of the elements and position of the orbit described by each about their common centre of gravity; and the question of the extension or non-extension of the Newtonian law of gravity to the sidereal heavens—the next great step which physical astronomy has yet to make—will be effectually decided. (H.) No. XII. R.A. $12^h\ 13^m$; Decl. $6^\circ\ 19'$ N. 17 Virginis; IV. 50; H. and S. 142. Double; 7th and 11th magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = $66^\circ\ 46'\ np$ | 7 Obs. | Diff. = $2^\circ\ 35'$ } Unsteady. Distance = $19''.795$ | 5 Obs. | Diff. = $0''.625$ } Very unsteady. Measures extremely difficult, on account of light clouds: the angles were gotten when the stars were on the meridian; but no observations of distance could be procured till they were 40 minutes west of it. Passy; April 4, 1825; Seven-feet Equatorial. 8th and 12th magnitudes. Position = $65^\circ\ 43'\ np$ | 7 Obs. | Diff. = $1^\circ\ 15'$ } Very difficult. Distance = $19''.974$ | 5 Obs. | Diff. = $1''.034$ } Extremely difficult. Passy; April 29, 1825; Seven-feet Equatorial. 8th and 11th magnitudes. Position = $66^\circ\ 7'\ np$ | 7 Obs. | Diff. = $1^\circ\ 42'$ } Measures of considerable difficulty. Distance = $19''.596$ | 5 Obs. | Diff. = $0''.408$ } Passy; May 10, 1825; Seven-feet Equatorial. Position = $66^\circ\ 25'\ np$ | 7 Obs. | Diff. = $1^\circ\ 47'$ } Very difficult. Distance = $20''.274$ | 5 Obs. | Diff. = $1''.491$ } Extremely difficult. Mean Result. Position $66^\circ\ 15'\ np$ (28 Obs.); Distance $19''.910$ (20 Obs.); Epoch 1825.30. The difficulty of the measures of this star is no doubt the reason of the disagreement between the result ($69^\circ\ 36'\ np$) of the observations of 1823, and the present. The discordance however is unfortunately such as to prevent any certain conclusion as to the motion or rest of the stars from being drawn. (H.) Mr. South's re-examination of the apparent distances No. XIII. R. A. $12^h\ 32^m$; Decl. $0^\circ\ 27'$ S. $\gamma$ Virginis; III. 18; H. and S. 150. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. | Position = $7^\circ\ 22'\ s.f.$ | 7 Obs. | Diff. = $3^\circ\ 12'$ } Unsteady. | | Distance = $3''.287$ | 5 Obs. | Diff. = $0''.312$ | The angles were observed with 413; but the distances with 181 only, in consequence of the unsteadiness of the stars, which were at the time of observation a few minutes west of the meridian. Passy; April 4, 1825; Seven-feet Equatorial. | Position = $6^\circ\ 42'\ n.p.$ | 5 Obs. | Diff. = $2^\circ\ 20'$ } Very unsteady. | | Distance = $3''.152$ | 5 Obs. | Diff. = $0''.601$ | The stars are of the 8th and $8\frac{1}{2}$ magnitudes. I tried to use a higher power than 181, but could not do it advantageously. Passy; May 14, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. | Position = $6^\circ\ 55'\ n.p.$ | 7 Obs. | Diff. = $1^\circ\ 9'$ } . . . | | Distance = $3''.325$ | 5 Obs. | Diff. = $0''.456$ | Observed when on the meridian; stars tolerably well defined, but unsteady. Passy; May 31, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and 9th magnitudes. | Position = $6^\circ\ 34'\ n.p.$ | 7 Obs. | Diff. = $0^\circ\ 51'$ } Very unsteady. | | Distance = $3''.289$ | 5 Obs. | Diff. = $0''.481$ | Stars one hour west of the meridian; at times tolerably well defined. Mean Result. Position $6^\circ\ 53'\ n.p.$ (28 Obs.); Distance $3''.263$ (20 Obs.); Epoch 1825.32. These observations confirm the motion attributed to the stars of $\gamma$ Virginis, and point out an acceleration in it, even more strongly than has been insisted upon in a former paper. This will appear by assembling all the observations with their epochs, as follows: and positions of 36 double and triple stars, &c. No. XIII. R. A. $12^h\ 32^m$; Decl. $0^\circ\ 27'$ S. γ Virginis; III. 18; H. and S. 150. continued. | Epoch | Position | Interval | Angle described | Angular velocity deduced | |-------|----------|----------|-----------------|-------------------------| | 1756.0 | 54.4 np | 25.9 | 13.7 | 0.528 | | 1781.9 | 40.7 | 21.3 | 10.4 | 0.490 | | 1803.2 | 30.3 | 17.0 | 15.0 | 0.882 | | 1820.2 | 15.3 | 2.1 | 1.9 | 0.905 | | 1822.3 | 13.4 | 3.0 | 6.5 | 2.167 | | 1825.3 | 6.9 | | | | This star therefore ought to be narrowly watched, as it should seem that the two component stars are mutually approaching to their perihelion, or at least to their situation of maximum angular velocity. (H.) No. XIV. R. A. $12^h\ 32^m$; Decl. $12^\circ\ 1'$ S. 58 (Bode) Corvi; 145. 38; H. and S. 149. Double; equal; each of the 8th magnitude. Passy; April 11, 1825; Seven-feet Equatorial. Position = $31^\circ\ 23'\ np$ or $sf$ | 5 Obs. | Diff. = $2^\circ\ 3'$ | Unsteady. Distance = $6''.244$ | 5 Obs. | Diff. = $0''.264$ | Unsteady. Passy; April 12, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $31^\circ\ 32'\ np$ | 5 Obs. | Diff. = $0^\circ\ 47'$ | Unsteady. Distance = $5''.910$ | 5 Obs. | Diff. = $0''.288$ | Unsteady. Mean Result. Position $31^\circ\ 27'\ np$ or $sf$ (10 Obs.); Distance $6''.077$ (10 Obs.); Epoch 1825.28. When this star was measured, I was not aware that observations of it by Mr. Herschel and myself had been communicated to the Royal Society. Our joint result was, Position $29^\circ\ 26'\ sf$; Distance $6''.881$; Epoch 1823.31. Mr. South's re-examination of the apparent distances No. XV. R. A. $14^h\ 37^m$; Decl. $27^\circ\ 51'$ N. ε Bootis; I. 1; H. and S. 185. Double; 2nd and 9th magnitudes. Blackman-street; June 18, 1824; Five-feet Equatorial. Position = $55^\circ\ 25'\ np$ | 5 Obs. | Diff. = $2^\circ\ 45'$. Very satisfactory. Observations made by strong twilight, without artificial illumination of the wires. The evening remarkably favourable; stars extremely steady, and distant from the meridian 20 minutes. Passy; May 27, 1825; Seven-feet Equatorial. 2nd and 9th magnitudes. Position = $55^\circ\ 58'\ np$ | 7 Obs. | Diff. = $3^\circ\ 19'$ Distance = $3'.713$ | 5 Obs. | Diff. = $0''.505$ Passy; May 31, 1825; Seven-feet Equatorial. Position = $55^\circ\ 30'\ np$ | 7 Obs. | Diff. = $3^\circ\ 4'$. Rather difficult. Observations of distance impracticable, on account of the unsteadiness of the stars. Passy; June 1, 1825; Seven-feet Equatorial. 2nd and 9th magnitudes. Position = $53^\circ\ 40'\ np$ | 7 Obs. | Diff. = $1^\circ\ 42'$ Distance = $3''.565$ | 5 Obs. | Diff. = $0''.456$ Difficult. Stars tolerably well defined, and on the meridian, but are very unsteady. Passy; June 9, 1825; Seven-feet Equatorial. 2nd and 9th magnitudes. Position = $54^\circ\ 58'\ np$ | 7 Obs. | Diff. = $2^\circ\ 26'$ Steady. Distance = $3''.368$ | 5 Obs. | Diff. = $0''.505$ Passy; June 13, 1825; Seven-feet Equatorial. 2nd and 9th magnitudes. Position = $53^\circ\ 28'\ np$ | 7 Obs. | Diff. = $2^\circ\ 52'$ Observed with 181. Position = $53^\circ\ 17'\ np$ | 7 Obs. | Diff. = $2^\circ\ 23'$ 327. Distance = $3''.007$ | 5 Obs. | Diff. = $0''.336$ 181. Stars admirably defined. I never observed this difficult double star under more favourable circumstances: the results are entitled to very considerable confidence: the observations were procured when the star was a few minutes on either side of the meridian. No. XV. R. A. $14^h\ 37^m$; Decl. $27^\circ\ 51'N.$ $\varepsilon$ Bootis; I. 1; H. and S. 185. continued. Passy; June 14, 1825; Seven-feet Equatorial. 2nd and 9th magnitudes. | Position = $53^\circ\ 35'\ np$ | 7 Obs. | Diff. = $2^\circ\ 36'$ | Rather difficult. | |-----------------------------|--------|-----------------|------------------| | Distance = $3''.126$ | 5 Obs. | Diff. = $0''.529$ | Difficult. | Observed with 181; stars on the meridian and well defined, but are not steady. Mean Result. Position $55^\circ\ 25'\ np$ (5 Obs.); Epoch 1824.47; Position $54^\circ\ 21'\ np$ (49 Obs.); Epoch 1825.43; Distance $3''.356$ (25 Obs.); Epoch 1825.44. Taking the means of the above angles and epochs, allowing each a weight proportional to the number of measures on which it rests, we get for the mean Epoch 1825.34 the angle of position $54^\circ\ 26'\ np$. This, compared with the measures of 1822, gives $\pm 1^\circ\ 27'$ for the observed motion in the interval of 2.79 years. The motion computed on a supposition of $\pm 0^\circ.4378$ per annum assigned in a former paper, should be $\pm 1^\circ\ 14'$, differing insensibly from that actually found by observation. The motion of this star is therefore very satisfactorily confirmed both in direction and quantity; and when we reflect on the extreme difficulty of it (in respect of position), this will serve to give great confidence in results which depend on a great number of measures, however wide of the mark individual measures may be. (H.) MDCCCXXVI. Mr. South's re-examination of the apparent distances No. XVI. R. A. $14^h\ 43^m$; Decl. $19^\circ\ 51'$ N. ξ Bootis; II. 18; H. and S. 187. Double; 6th and 8th magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = $66^\circ\ 22'\ np$ | 7 Obs. | Diff. = $1^\circ\ 56'$ } Very unsteady. Distance = $7''.668$ | 6 Obs. | Diff. = $0''.721$ } Observed when 40 minutes east of the meridian. Passy; May 27, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $68^\circ\ 16'\ np$ | 7 Obs. | Diff. = $1^\circ\ 54'$ } Unsteady. Distance = $7''.814$ | 5 Obs. | Diff. = $0''.673$ } Observed on the meridian; but the night is unfavourable. Passy; May 31, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = $67^\circ\ 3'\ np$ | 7 Obs. | Diff. = $1^\circ\ 0'$ } Very unsteady. Distance = $7''.949$ | 5 Obs. | Diff. = $0''.481$ } Observed on the meridian. Passy; June 1, 1825; Seven-feet Equatorial. 6½ and 9th magnitudes. Position = $66^\circ\ 16'\ np$ | 7 Obs. | Diff. = $2^\circ\ 3'$ } Unsteady. Distance = $7''.672$ | 5 Obs. | Diff. = $0''.889$ } Observed with 181; stars on the meridian, and at times well defined; a power of 413 showed the larger of the two stars as round as possible. Mean Result. Position $67^\circ\ 0'\ np$; Distance $7''.776$; Epoch 1825.37. In the former communication (Phil. Tran. 1824. III.) it is remarked that the continuance or decrease of the then angular velocity of about $1^\circ$ per annum for a few years, would decide the question of rectilinear or orbital motion. The present observations, then, go a great way towards deciding this interesting question, as, so far from indicating any retardation, their tendency lies the other way. In fact, (supposing them free from error), no less than — $3^\circ\ 54'$ have been described in 2.74 years, being at the rate of — $1^\circ.420$ per annum. This star therefore merits peculiar attention, as the great variation of its distance gives reason to suppose a great ellipticity, or considerable inclination of its orbit. (H.) and positions of 36 double and triple stars, &c. No. XVII. R. A. $15^h\ 18^m$; Decl. $38^\circ\ 1'N.$ $\sigma\mu$ Bootis; I. 17; H. and S. 203. Double; 8th and 10th magnitudes. Passy; June 12, 1825; Seven-feet Equatorial. Position = $64^\circ\ 14'\ np$ | 7 Obs. | Diff. = $1^\circ\ 29'$ | Difficult. Observed when on the meridian with 327: I could not obtain any measures of distance, on account of the extreme unsteadiness of the stars. Passy; June 13, 1825; Seven-feet Equatorial. 9th and 10th magnitudes. Position = $63^\circ\ 32'\ np$ | 7 Obs. | Diff. = $3^\circ\ 9'$ | Difficult. Distance = $1''.396$ | 5 Obs. | Diff. = $0''.432$ Observed with 327, when on the meridian. Measures satisfactory. Passy; June 17, 1825; Seven-feet Equatorial. 8½ and 10th magnitudes. Position = $63^\circ\ 23'\ np$ | 7 Obs. | Diff. = $3^\circ\ 39'$ | Easy. Distance = $1''.377$ | 5 Obs. | Diff. = $0''.408$ Observed with 327: stars well defined, and 35 minutes east of the meridian. Passy; June 19, 1825; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = $63^\circ\ 25'\ np$ | 7 Obs. | Diff. = $2^\circ\ 11'$ | Not difficult. Distance = $1''.573$ | 5 Obs. | Diff. = $0''.312$ Stars on the meridian, and admirably defined. Measures obtained with 327, and considered very satisfactory. Passy; June 23, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $63^\circ\ 7'\ np$ | 7 Obs. | Diff. = $1^\circ\ 30'$ | Difficult. Distance = $1''.339$ | 5 Obs. | Diff. = $0''.336$ Observed with 327; stars on the meridian, but very unsteady. Mean Result. Position $63^\circ\ 32'\ np$ (35 Obs.); Distance $1''.421$ (20 Obs.); Epoch $1825.46$. These measures, compared with those of 1823, give a motion of only $-0^\circ\ 10'$ instead of $-1^\circ\ 6'$, which calculation No. XVII. R. A. $15^h\ 18^m$; Decl. $38^\circ\ 1'N.$ $sf\ \mu$ Bootis; I. 17; H. and S. 203. continued. would assign. The direction however is right; and as the errors required to produce this discrepancy would be very small, we may combine both series of observations for a mean epoch, which will give, Epoch $1824.61$; Position $63^\circ\ 36' n p.$ Difference of Declination of $\mu$ Bootis and of the larger of the two stars forming the close double star which is $sf$ it, Passy; June 21, 1825; Seven-feet Equatorial. Difference of declin. = $1'\ 47''.314$ | 6 Obs. | Diff. = $0''.793$. Observed when on the meridian with 327; but the stars very unsteady. Passy; June 23, 1825; Seven-feet Equatorial. Difference of declin. = $1'\ 47''.199$ | 7 Obs. | Diff. = $1''.106$. Observed on the meridian with 327; the stars very unsteady. Passy; July 2, 1825; Seven-feet Equatorial. Difference of declin. = $1'\ 47''.610$ | 7 Obs. | Diff. = $0''.336$. Observed on the meridian with 181, which power during twilight completely separates the two stars of the close double star. Observed without artificial illumination of the micrometer wires; stars very steady; measures satisfactory. Mean Result. Difference of Declination $1'\ 47''.377$ (20 Obs.); Epoch $1825.48$. The mean of 12 observations taken July 9, 1823, with the Five-feet Equatorial, was $1'\ 46''.962$, differing only $0''.415$ from the present determination. and positions of 36 double and triple stars, &c. No. XVIII. R. A. 15° 26′; Decl. 11° 9′ N. δ Serpentis; I. 42; H. and S. 205. Double; 8th and 9th magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = 74° 5′ sp | 7 Obs. | Diff. = 2° 22′ { Unsteady, and ill Distance = 3′.287 | 5 Obs. | Diff. = 0′.384 } defined. Observed with 413, when 20 minutes east of the meridian. Passy; June 12, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 70° 41′ sp | 7 Obs. | Diff. = 3° 4′. Rather difficult. Observed on the meridian; but the stars are so extremely unsteady, that to obtain measures of distance is impracticable. Passy; June 13, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 68° 32′ sp | 7 Obs. | Diff. = 2° 25′ { Tolerably steady. Distance = 3′.325 | 5 Obs. | Diff. = 0′.505 } Observed with 327 on the meridian. Night rather favourable. Passy; June 14, 1825; Seven-feet Equatorial. Small, decidedly light blue. Position = 70° 53′ sp | 7 Obs. | Diff. = 0° 34′ { With 181. Distance = 3′.390 | 5 Obs. | Diff. = 0′.360 } Observed on the meridian; stars rather unsteady. Passy; June 16, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 69° 33′ sp | 7 Obs. | Diff. = 2° 10′ { With 181. Distance = 3′.268 | 5 Obs. | Diff. = 0′.216 } Passy; June 19, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 69° 23′ sp | 7 Obs. | Diff. = 2° 24′ { Rather steady. Distance = 3′.072 | 5 Obs. | Diff. = 0′.216 } Observed with 327 on the meridian. Night tolerably favourable. Mean Result. Position 69° 49′ sp (35 Obs.); Epoch 1825.46. Distance 3′.268 (25 Obs.); Epoch 1825.42. In taking the mean, the position observed April 3 is rejected. Mr. South's re-examination of the apparent distances No. XVIII. R. A. $15^h\ 26^m$; Decl. $11^\circ\ 9'$ N. δ Serpentis; I. 42; H. and S. 205. continued. Either there is a considerable error in these or the measures of 1821, or the result is unfavourable to the motion assigned to this star, as, instead of advancing $3^\circ$ in its apparent orbit, it seems actually to have receded nearly $50'$. Further observations must elucidate this difficulty. (H.) No. XIX. R. A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. ξ Scorpii; I. 33 and II. 20; H. and S. 216. Double; 6th and 9th, or 10th magnitudes; small, decidedly blue. Passy; June 14, 1825; Seven-feet Equatorial. Position = $12^\circ\ 36'\ nf$ | 7 Obs. | Diff. = $1^\circ\ 37'$ } Unsteady. Distance = $7''.290$ | 5 Obs. | Diff. = $0''.745$ } Observed on the meridian with 181. Passy; June 16, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $14^\circ\ 27'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 14'$ } Unsteady. Distance = $6''.946$ | 5 Obs. | Diff. = $0''.673$ } Observed with 181; stars on the meridian. Passy; June 17, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = $13^\circ\ 59'\ nf$ | 7 Obs. | Diff. = $1^\circ\ 52'$ } Unsteady, but well Distance = $6''.975$ | 5 Obs. | Diff. = $0''.240$ } defined. Observed on the meridian with 181. Passy; June 18, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = $12^\circ\ 27'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 23'$. Tolerably steady. Observed by Mons. Arago on the meridian, with a power of 181. Mean Result. Position $13^\circ\ 22'\ nf$; Distance $7''.070$; Epoch 1825.46. No. XIX. R. A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. $\xi$ Scorpii; I. 33 and II. 20; H. and S. 216. continued. Triple; A and B equal; each of the 7th magnitude; C of the 9th. Measures of the close pair A B. Passy; June 19, 1825; Seven-feet Equatorial. Position = $84^\circ\ 43'$ sf or np | 5 Obs. | Diff. = $2^\circ\ 3'$. Unsteady. In the former communication $\xi$ Scorpii was only observed as a double star; Sir W. Herschel however having described it as triple, I have examined it several times with reference to this point; but the extreme unsteadiness of the stars, particularly those of low altitudes, during several weeks past, has precluded the use of high magnifying powers. This evening the stars being more tranquil, a power of 327 was applied, and an elongation of the large star was at times suspected: 413 confirmed the suspicion, but was inadequate to separate the two stars. The angles here given were obtained with 513, with which the discs of the stars seemed in contact; but their extreme unsteadiness under this magnifying power rendered all attempts to procure measures of distance abortive; and the position, from this circumstance, must be regarded with some distrust. The stars have the same colour, and were observed on the meridian. Passy; June 21, 1825; Seven-feet Equatorial. Each of the 7th magnitude. Position = $81^\circ\ 48'$ np or sf | 5 Obs. | Diff. = $6^\circ\ 22'$. Extremely difficult. Three of the angles were gotten with 512, the other two with 413. The extreme unsteadiness of the stars rendered the observations so unsatisfactory, that I consider them as little else than approximations. Observed on the meridian. Mr. South's re-examination of the apparent distances No. XIX. R.A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. $\xi$ Scorpii; I. 33 and II. 20; H. and S. 216. continued. Measures of the close pair A B. Passy; June 23, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = $80^\circ\ 14'\ s'f$ | 7 Obs. | Diff. = $1^\circ\ 58'$ } Extremely difficult. Distance = $1''.032$ | 6 Obs. | Diff. = $0''.432$ } Observed on the meridian with 413; stars unsteady; yet I never saw them so well defined. Passy; June 29, 1825; Seven-feet Equatorial. 6th and 6½ magnitudes. Position = $82^\circ\ 26'\ s'f$ | 7 Obs. | Diff. = $1^\circ\ 59'$ } Difficult. Distance = $1''.272$ | 5 Obs. | Diff. = $0''.254$ } Observed on the meridian with 413; stars perfectly round: a black division between them seen distinctly. The measures I consider good, and were gotten with less difficulty than either of the preceding sets. Evening very favourable; stars unusually steady. Passy; June 30, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Position = $82^\circ\ 57'\ s'f$ | 7 Obs. | Diff. = $3^\circ\ 10'$ } Extremely difficult. Observed when a few minutes east of the meridian with 413; stars at times well defined: light clouds and extreme unsteadiness, render it impossible for me to procure measures of distance, nor can any observations of A, or B, with the more distant star C, be obtained. Passy; July 2, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Position = $82^\circ\ 48'\ s'f$ | 7 Obs. | Diff. = $3^\circ\ 21'$ } Unsteady. Distance = $1''.678$ | 5 Obs. | Diff. = $0''.192$ } Observed with 413, when 5 minutes east of the meridian; angles very difficult; distances extremely difficult. Passy; July 4, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = $79^\circ\ 33'\ s'f$ | 7 Obs. | Diff. = $3^\circ\ 45'$ } Very unsteady. Distance = $1''.394$ | 5 Obs. | Diff. = $0''.240$ } Observed when 10 minutes west of the meridian with a power of 413; measures very difficult. No. XIX. R. A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. $\xi$ Scorpii; I. 33 and II. 20; H. and S. 216. continued. Measures of the close pair A B. Passy; July 8, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 81^\circ\ 34'\ s f$ | 7 Obs. | Diff. $= 5^\circ\ 13'$ } Very unsteady. Distance $= 1''.477$ | 5 Obs. | Diff. $= 0''.192$ } Observed by twilight with 413, when 15 minutes east of the meridian. Measures very difficult. Measures of A C. Passy; June 23, 1825; Seven-feet Equatorial. Position $= 9^\circ\ 39'\ n f$ | 7 Obs. | Diff. $= 2^\circ\ 19'$ } Very difficult. Distance $= 7''.043$ | 5 Obs. | Diff. $= 0''.168$ } Observed with 413; but the measures are very difficult, because the distant blue star C does not bear so high a magnifying power; indeed it is so very indistinct, that it is seen only with great attention. Passy; June 29, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position $= 8^\circ\ 1'\ n f$ | 7 Obs. | Diff. $= 1^\circ\ 8'$. Remarkably steady. Observed when 10 minutes west of the meridian with 413; the measures are difficult, because the star C is extremely indistinct with this power. I think the measures very good. Passy; July 2, 1825; Seven-feet Equatorial. 7th and $10\frac{1}{2}$ magnitudes. Position $= 9^\circ\ 17'\ n f$ | 7 Obs. | Diff. $= 1^\circ\ 47'$ } Extremely difficult. Distance $= 6''.857$ | 5 Obs. | Diff. $= 0''.769$ } Observed when 10 minutes west of the meridian with 327, with which the discs of the two stars A and B seemed in contact: variable refraction prevented me using a higher power: the stars were at times well defined. Passy; July 4, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position $= 8^\circ\ 49'\ n f$ | 7 Obs. | Diff. $= 2^\circ\ 0'$. Rather unsteady. Observed by twilight with 181, which sufficiently separated the two discs of the close pair A B; stars 20 minutes east of the meridian at the time the measures were taken. MDCCCXXVI. Mr. South's re-examination of the apparent distances No. XIX. R. A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. ξ Scorpii; I. 33 and II. 20; H. and S. 216. continued. Measures of A C. Passy; July 8, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $9^\circ\ 27'\ nf$ | 7 Obs. | Diff. = $1^\circ\ 24'$ Distance = $6''.983$ | 5 Obs. | Diff. = $0''.505$ Very difficult. Observed with 413. Stars at times well defined, but very unsteady. Passy; June 29, 1825; Seven-feet Equatorial. Measures of B C. 6½ and 10th magnitudes. Position = $17^\circ\ 25'\ nf$ | 7 Obs. | Diff. = $4^\circ\ 15'$. Very difficult. Observed when 20 minutes west of the meridian with 413; the position of B C is obtained with more difficulty than that of A C; and perhaps on this account the observations of the latter are scarcely so much to be relied upon, as those of the former. Passy; July 2, 1825; Seven-feet Equatorial. 7½ and 10½ magnitudes. Position = $18^\circ\ 16'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 10'$. Extremely difficult. Observed on the meridian with 327; stars very unsteady. Passy; July 4, 1825; Seven-feet Equatorial. 8½ and 10th magnitudes. Position = $17^\circ\ 53'\ nf$ | 7 Obs. | Diff. = $4^\circ\ 59'$. Very difficult. Observed with 327 when on the meridian; stars extremely unsteady. Passy; July 8, 1825; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $16^\circ\ 28'\ nf$ | 7 Obs. | Diff. = $1^\circ\ 25'$. Very difficult. Observed when 10 minutes west of the meridian; stars very unsteady. and positions of 36 double and triple stars, &c. No. XIX. R. A. $15^h\ 54^m$; Decl. $10^\circ\ 52'$ S. ξ Scorpii; I. 33 and II. 20; H. and S. 216. continued. Mean Result. of A.B. $\begin{cases} \text{Position } 81^\circ\ 54'\ s f (52 \text{ Obs.}); \text{ Epoch } 1825.49; \\ \text{Distance } 1''.358 (26 \text{ Obs.}); \text{ Epoch } 1825.50. \end{cases}$ of A.C. Position $9^\circ\ 3'\ n f (35 \text{ Obs.}); \text{ Distance } 6''.961 (15 \text{ Obs.}); \text{ Epoch } 1825.50.$ of B.C. Position $17^\circ\ 30'\ n f (28 \text{ Obs.}); \text{ Epoch } 1825.51.$ The observations of A.C when seen only as a double star, are not included in the mean result. Not the slightest alteration appears to have taken place in the relative position or distance of the close stars. The angle measured by Sir W. Herschel in 1782 was $82^\circ\ 2'\ s f$, differing only $6'$ from the present; while the interval, estimated at $\frac{1}{4}$ or $\frac{1}{3}$ of a diameter, would correspond to a distance of about $1\frac{1}{2}'$. (H.) No. XX. R. A. $16^h\ 4^m$; Decl. $14^\circ\ 1'$ N. 49 Serpentis; I. 82; H. and S. 221. Double; 8th and $8\frac{1}{2}$ magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. | Position = $48^\circ\ 38'\ n p$ | 7 Obs. | Diff. = $4^\circ\ 9'$ | |-----------------------------|-------|------------------| | Distance = $3''.734$ | 5 Obs.| Diff. = $0''.360$ | Observed with 413. Stars at times well defined, but unsteady. Passy; June 13, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. | Position = $47^\circ\ 43'\ n p$ | 7 Obs. | Diff. = $2^\circ\ 27'$ | |-----------------------------|-------|------------------| | Distance = $3''.330$ | 5 Obs.| Diff. = $0''.336$ | Unsteady; Observed on the meridian with 327; pretty well defined. Passy; June 16, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. | Position = $47^\circ\ 30'\ n p$ | 7 Obs. | Diff. = $2^\circ\ 29'$ | |-----------------------------|-------|------------------| | Distance = $3''.440$ | 5 Obs.| Diff. = $0''.244$ | Unsteady. Observed when on the meridian with 181; tolerably good measures. Mr. South's re-examination of the apparent distances No. XX. R. A. 16° 4' ; Decl. 14° 1' N. 49 Serpentis; I. 82; H. and S. 221. continued. Passy; June 19, 1825; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 48° 51' np | 7 Obs. | Diff. = 1° 28' Distance = 3°.500 | 5 Obs. | Diff. = 6°.529 Tolerably steady. Observed on the meridian with 181; results satisfactory. Mean Result. Position 48° 10' np (20 Obs.); Distance 3°.501 (20 Obs.); Epoch 1825.41. The change in this star since the last observations is such as to confirm the direction of its motion; but the quantity is more than calculation would give, amounting to no less than 6° 13', instead of 1° 6'. This renders it probable that the measures of 1823 are erroneous,* and that Mr. Struve's measure in 1820 (46° 33' np) is entitled to greater confidence. The former rest on the observations of one night; and long experience has now shown, that this can never be fully depended on. (H.) No. XXI. R. A. 16° 8' ; Decl. 34° 20' N. σ Coronæ; I. 3; H. and S. 222. Double; 6th and 8th magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = 12° 18' nf | 5 Obs. | Diff. = 6° 10'. Extremely difficult. The small star only seen by glimpses. In the accuracy of the results I have no confidence. Observations of distance impracticable. * On referring to our original manuscripts, this suggestion offered by Mr. Herschel is corroborated; for on the 19th June, 1822, the star was measured by one of us, in the absence of the other, and under very favourable circumstances, the mean of eight measures (the extremes of which differed only 1° 22') gave, Position 45° 33' np. As however the observations subsequently made, were so much at variance with them, it was thought advisable to give the preference to our joint result, and to suppress the other. Sloane-street, March 11, 1826. No. XXI. R. A. 16\textsuperscript{h} 8\textsuperscript{m}; Decl. 34° 20' N. σ Coronæ; I. 3; H. and S. 222. continued. Passy; June 16, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = 13° 15' nf | 7 Obs. | Diff. = 3° 47' } Difficult. Distance = 1''.484 | 5 Obs. | Diff. = 0''.216 Observed on the meridian with 413; stars neatly separated, but not very steady; measures taken with great care, and are considered very good. Passy; June 17, 1825; Seven-feet Equatorial. 6\textsuperscript{1/2} and 8th magnitudes. Position = 12° 45' nf | 7 Obs. | Diff. = 3° 35'. Very difficult. Observed with 413, when on the meridian; but the stars are so unsteady, that I cannot obtain any measures of distance. Passy; June 19, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. The small star certainly not blue; it differs very little from the large star in colour. Position = 12° 49' nf | 7 Obs. | Diff. = 1° 58'. Very difficult. Observed with 413; stars at times well defined, and are on the meridian; but their unsteadiness prevents me obtaining measures of distance. Passy; June 23, 1825; Seven-feet Equatorial. 6th and 8th magnitudes. Position = 11° 30' nf | 7 Obs. | Diff. = 3° 28' } Very difficult. Distance = 1''.296 | 5 Obs. | Diff. = 0''.216 Observed on the meridian with 413, but the stars are very unsteady. Passy; July 13, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = 12° 17' nf | 7 Obs. | Diff. = 2° 15' } Tolerably steady. Distance = 1''.659 | 5 Obs. | Diff. = 0''.336 Observed with 413, when 25 minutes west of the meridian. Mr. South's re-examination of the apparent distances No. XXI. R. A. 16° 8' ; Decl. 34° 20' N. σ Coronæ; I. 3; H. and S. 222. continued. Triple; A 6th, B 8th, and C of the 15th or 20th magnitudes. Measures of A C. Passy; July 2, 1825; Seven-feet Equatorial. Position = 1° 17' sf | 5 Obs. | Diff. = 1° 10' } Distance = 40".949 | 3 Obs. | Diff. = 0".889 } Steady. Observed with 92; with a higher power I cannot distinguish the small star: the measures are so excessively difficult, that a slight error may be suspected. I have seen the small star before, but hitherto could not procure measures of it. Passy; July 18, 1825; Seven-feet Equatorial. 6th and 15th magnitudes. Position = 0° 1' sf | 5 Obs. | Diff. = 1° 40' } Distance = 44".015 | 2 Obs. | Diff. = 0".553 } Steady. The small star is so extremely faint, that the observations are attended with the greatest difficulty. Observed with 92; the results are very suspicious; indeed they are little else than approximations. Mean Result. of A B. { Position 12° 29' nf (40 Obs.); Epoch 1825.44; Distance 1".480 (15 Obs.); Epoch 1825.49. of A C. { Position 0° 39' sf (10 Obs.); Epoch 1825.53; Distance 42".175 (5 Obs.) ; Epoch 1825.53. The rotatory motion of this star continues in the direction previously assigned. The observations of 1821, 1823, and 1825, stand as follow: | Year | Position | Arcs described | Angular velocities | |------|----------|----------------|--------------------| | 1821.30 | 24° 45' nf | + 7° 41' | + 3°.548 | | 1823.47 | 17 4 nf | + 4 35 | + 2°.334 | | 1825.44 | 12 29 nf | | | and positions of 36 double and triple stars, &c. No. XXI. R.A. 16ʰ 8ᵐ; Decl. 34° 20' N. σ Coronæ; I. 3; H. and S. 222. continued. The mean angular velocity corresponding to the whole interval is + 2°.964—say 3°. The great and almost sudden increase of angular velocity from 2° to nearly 7° per annum, is not verified; and the angle 40° o' nf for 1819, on which it rests, must of necessity have been considerably in error. Now this is the very angle which, according to the table (p. 252, Phil. Trans. 1824. III.) gives a deviation of 9° 2' from the computed place, so that the hypothesis there assumed respecting the orbit is considerably supported by the present observations. (H.) No. XXII. R.A.: 16ʰ 35ᵐ; Decl. 31° 56' N. ζ Herculis; I. 36; H. and S. 237. Passy; July 28, 1825; Seven-feet Equatorial. The evening being very favourable, I examined this star very attentively with the magnifying powers 181, 327, 413, 512, and 787; not the slightest appearance either of a second star, or of any elongation of ζ: with 787 it was exquisitely defined, and as round as possible. No. XXIII. R.A. 17ʰ 3ᵐ; Decl. 54° 48' N. μ Draconis; II. 13; H. and S. 242. Double; equal; each of the 8th magnitude. Passy; April 3, 1825; Seven-feet Equatorial. Distance = 4''.470 | 5 Obs. | Diff. = 0''.529. Unsteady. Observed with 413, when 1¼ hour east of the meridian; half the object-glass rendered useless by the intervention of the timbers of the observatory. Mr. South's re-examination of the apparent distances No. XXIII. R. A. 17° 3′; Decl. 54° 43′ N. μ Draconis; II. 13; H. and S. 242. continued. Passy; June 21, 1825; Seven-feet Equatorial. Equal; each 8th magnitude. Position = 60° 46′ s p or n f | 7 Obs. | Diff. = 2° 11′ } Unsteady. Distance = 4″.453 | 5 Obs. | Diff. = 0″.216 } Observed when 50 minutes east of the meridian; only half of the object-glass is employed, on account of the interference of the observatory timbers. The stars however are sufficiently bright, to bear all the illumination the lamp affords, and are tolerably well defined. Passy; June 30, 1825; Seven-feet Equatorial. Equal; each 8½ magnitude. Position = 61° 45′ s p or n f | 7 Obs. | Diff. = 1° 34′ } Tolerably steady. Distance = 4″.255 | 5 Obs. | Diff. = 0″.697 } Observed with 181, when 45 minutes east of the meridian; more than half of the object-glass not in use, from the cause before adverted to. The results I consider very good. Passy; July 13, 1825; Seven-feet Equatorial. Equal; each 7½ magnitude. Position = 59° 14′ s p or n f | 7 Obs. | Diff. = 2° 5′ } Steady. Distance = 4″.390 | 5 Obs. | Diff. = 0″.577 } Observed when 50 minutes east of the meridian; one-half of the object-glass covered by the timbers of the building. Passy; July 14, 1825; Seven-feet Equatorial. Equal; each 8th magnitude. Position = 61° 21′ s p or n f | 7 Obs. | Diff. = 1° 37′ } Very steady. Distance = 3″.835 | 5 Obs. | Diff. = 0″.288 } Observed when 40 minutes east of the meridian; more than half the object-glass unemployed. Passy; July 18, 1825; Seven-feet Equatorial. Equal; each 8½ magnitude. Position = 62° 5′ s p or n f | 7 Obs. | Diff. = 1° 15′ } Tolerably steady. Distance = 4″.578 | 5 Obs. | Diff. = 0″.553 } Observed when 45 minutes east of the meridian; more than half of the object-glass is rendered useless by the interference of the observatory timbers. No. XXIII. R. A. $17^h\ 3^m$; Decl. $54^\circ\ 43'$ N. $\mu$ Draconis; II. 19; H. and S. 242. continued. Mean Result. Position $61^\circ\ 2'\ sp$ or $nf$ (35 Obs.); Epoch 1825.252; Distance $4''.330$ (30 Obs.); Epoch 1825.47. The position of this star, as determined for the mean epoch 1820.97, is $60^\circ.29$, or $60^\circ\ 18'\ sp$ or $nf$ (Phil. Trans. 1824, III. p. 271.) It is now $61^\circ\ 2'$. The change in $4.55$ years is $-0^\circ\ 44'$, instead of $-2^\circ\ 36'$, which a computation founded on a mean motion of $-0^\circ.5792$ per annum would give. The determination for 1820 can however hardly be relied on for so great a degree of exactness as to bring out a precise quantity. The correspondence in direction is all we can expect, and is a satisfactory confirmation of the motion ascribed to this curious star. (H.) No. XXIV. R. A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. Triple; A $6\frac{1}{2}$, B 7th, and C 9th magnitudes. Measures of A B. $6\frac{1}{2}$ and 7th magnitudes. Blackman-street; June 28, 1824; Five-feet Equatorial. Position = $41^\circ\ 19'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 34'$ Tolerably steady. Blackman-street; July 12, 1824; Five-feet Equatorial. 6th and $6\frac{1}{2}$ magnitudes. Position = $41^\circ\ 58'\ sp$ | 5 Obs. | Diff. = $1^\circ\ 31'$ Unsteady. Distance = $5''.195$ | 5 Obs. | Diff. = $0''.885$ Passy; June 19, 1825; Seven-feet Equatorial. $6\frac{1}{2}$ and 7th magnitudes. Distance = $5''.260$ | 5 Obs. | Diff. = $0''.505$ Very unsteady. MDCCCXXVI. Mr. South's re-examination of the apparent distances No. XXIV. R.A. 17° 4' ; Decl. 26° 18' S. 36 Ophiuchi; H. and S. 243. continued. Passy; July 2, 1825; Seven-feet Equatorial. 6½ and 7th magnitudes. Distance = 5".145 | 5 Obs. | Diff. = 0".481. Very unsteady. Passy; July 24, 1825; Seven-feet Equatorial. 6½ and 7th magnitudes. Position = 41° 18' s p | 5 Obs. | Diff. = 2° 30'. Tolerably steady. Measures of A C. Blackman-street; July 12, 1824; Five-feet Equatorial. 6th and 9th magnitudes. Position = 16° 6' n p | 3 Obs. | Diff. = 0° 30' } Unsteady. Distance = 3' 14".444 | 3 Obs. | Diff. = 1".863 } Passy; July 2, 1825; Seven-feet Equatorial. 7th and 9th magnitudes; small, blue. Position = 16° 3' n p | 4 Obs. | Diff. = 0° 30' } Extremely unsteady. Distance = 3' 16".235 | 3 Obs. | Diff. = 0".601 } Passy; July 8, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Distance = 3' 14".924 | 7 Obs. | Diff. = 2".236. Night become unfavourable. Passy; July 20, 1825; Seven-feet Equatorial. 7th and 9½ magnitudes. Position = 15° 56' n p | 5 Obs. | Diff. = 0° 54' } Very unsteady. Distance = 3' 15".547 | 6 Obs. | Diff. = 0".288 } Passy; July 29, 1825; Seven-feet Equatorial. Difference of declination = 54".802 | 10 Obs. | Diff. = 2".717. Observed when 3 minutes east and west of the meridian; stars not steady. Passy; August 1, 1825; Seven-feet Equatorial. Difference of declination = 55".632 | 10 Obs. | Diff. = 1".755. Observed on the meridian; stars tolerably steady. Passy; August 5, 1825; Seven-feet Equatorial. Difference of declination = 55".855 | 10 Obs. | Diff. = 1".563. Observed when 5 minutes east and west of the meridian; stars very unsteady, and C very faint. and positions of 36 double and triple stars, &c. No. XXIV. R. A. 17° 4' ; Decl. 26° 18' S. 36 Ophiuchi; H. and S. 243. continued. Measures of B C. Passy; July 8, 1825; Seven-feet Equatorial. 7½ and 9th magnitudes. Position = 17° 52' np | 3 Obs. | Diff. = 0° 19'. Very faint. Night now so cloudy, that no more observations can be procured. Passy; July 13, 1825; Seven-feet Equatorial. 7½ and 9th magnitudes. Position = 17° 42' np | 5 Obs. | Diff. = 0° 21' | Distance = 3° 13''.618 | 5 Obs. | Diff. = 1''.515 } Very unsteady. Observed within a few minutes on either side of the meridian. Passy; July 14, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Position = 17° 41' np | 5 Obs. | Diff. = 0° 14' | Distance = 3° 12''.750 | 5 Obs. | Diff. = 0''.505 } Unsteady. Observed when a few minutes east and west of the meridian. Passy; July 18, 1825; Seven-feet Equatorial. 7th and 9½ magnitudes. Distance = 3° 14''.133 | 5 Obs. | Diff. = 0''.841. Extremely unsteady. Observations taken when the stars were 15 minutes west of the meridian. Passy; July 19, 1825; Seven-feet Equatorial. 7th and 9th magnitudes. Distance = 3° 14''.159 | 6 Obs. | Diff. = 0''.962. On the meridian. Stars so extremely unsteady, that I could not use a higher power than 157. Mean Result. of A B. { Position 41° 32' sp (15 Obs.) ; Epoch 1824.86 ; Distance 5''.200 (15 Obs.) ; Epoch 1825.17. of A C. Position 16° 1' np (12 Obs.) ; Epoch 1825.19 ; Distance 3° 15''.252 (19 Obs.) ; Epoch 1825.27. of B C. { Position 17° 41' np (10 Obs.) ; Epoch 1825.53 ; Distance 3° 13''.689 (21 Obs.) ; Epoch 1825.54. of A C. Difference of declination 55''.430 (30 Obs) ; Epoch 1825.59. Mr. South's re-examination of the apparent distances No. XXIV. R.A. $17^h\ 4^m$; Decl. $26^o\ 18' S.$ 36 Ophiuchi; H. and S. 243. continued. Our former measures gave, of A B. Position $42^o\ 41' sp$ or $nf$; Distance $5''.546$; of the distant star C. Position $19^o\ 5' np$; Distance $3'\ 0''735$. The position of C was taken relatively to the star B, and is not materially in error; the distance however is decidedly wrong, and must have arisen from erroneous reading of the micrometer. Observations to connect the star A, or the northern of the two stars of 36 Ophiuchi, with the star 30 Scorpii. Passy; July 21, 1825; Seven-feet Equatorial. Position $= 14^o\ 25' nf$; single measure. Distance $= 12' 7''.940$ | 2 Obs. | Diff. = $1''.082$ } Unsteady. Observed with 157, when 15 minutes east of the meridian; some slight inaccuracy may be apprehended, as the wires when separated to so great a distance are not quite free from parallax. Passy; July 23, 1825; Seven-feet Equatorial. Position $= 14^o\ 27' nf$ | 5 Obs. | Diff. = $0''.16'$ } Tolerably steady. Distance $= 12' 5''.590$ | 5 Obs. | Diff. = $2''.019$ } Observed with a power of 92, when within 5 minutes on either side of the meridian Passy; July 28, 1825; Seven-feet Equatorial. Position $= 14^o\ 28' nf$ | 5 Obs. | Diff. = $0''.12'$ } Steady. Distance $= 12' 4''.201$ | 5 Obs. | Diff. = $0''.841$ } Observed on the meridian, but the distance is too great for accuracy. Passy; August 1, 1825; Seven-feet Equatorial. Distance $= 12' 5''.480$ | 7 Obs. | Diff. = $1''.875$. Tolerably steady. Observed when 10 minutes west of the meridian with 92. Mean Result. Position $14^o\ 27' nf$; Distance $12' 5''.136$; Epoch $1825.57$. In taking the mean, the distance observed July 21 is rejected. and positions of 36 double and triple stars, &c. No. XXIV. R. A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. Observations to connect the star A, or the northern of the two stars of 36 Ophiuchi, with the star 30 Scorpii. Passy; July 8, 1825; Four-feet Transit Instrument. Difference of R. A. = $0' 52''.40$ (3 Obs.) Unsteady. Passy; July 13, 1825; Four-feet Transit Instrument. Difference of R. A. = $0' 52''.45$ (4 Obs.) Unsteady. Passy; July 14, 1825; Four-feet Transit Instrument. Difference of R. A. = $0' 52''.47$ (4 Obs.) Unsteady. Passy; July 8, 1825; Seven-feet Equatorial. Difference of declination = $3' 1''.438$ ± single observation. Become cloudy. Passy; July 18, 1825; Seven-feet Equatorial. Difference of declination = $3' 1''.091$ (6 Obs.) Diff. = $1'.683$. Observed on the meridian; stars very unsteady. Barometer 30.05 inches; Thermometer 84°. Passy; July 19, 1825; Seven-feet Equatorial. Difference of declination = $3' 1''.745$ (7 Obs.) Diff. = $3''.775$. Observed on the meridian; the stars so extremely unsteady, that I could only use a magnifying power of 157. Barometer 30.30 inches; thermometer 84°. Passy; July 20, 1825; Seven-feet Equatorial. Difference of declination = $3' 2''.142$ (6 Obs.) Diff. = $2''.717$. Observed on the meridian; stars extremely unsteady. Barometer 30.34 inches. Thermometer 83°. Mean Result. Difference of Right Ascension (in time) $0' 52''.444$ (11 Obs.); Epoch 1825.53. Difference of Declination $3' 1''.653$ (20 Obs.); Epoch 1825.54. Mr. South's re-examination of the apparent distances No. XXIV. R. A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. Observations to connect the star A, or the northern of the two stars of 36 Ophiuchi, with the star A, or the southern of the two stars of 38 Ophiuchi. Passy; July 21, 1825; Four-feet Transit Instrument. Difference of R. A. = $2' 11''.780$ (5 Obs.) Unsteady, and 38 very faint. Passy; July 23, 1825; Four-feet Transit Instrument. Difference of R. A. = $2' 11''.925$ (4 Obs.) Very unsteady, and 38 faint. Passy; July 25, 1825; Four-feet Transit Instrument. Difference of R. A. = $2' 11''.640$ (5 Obs.) Tolerably steady. Passy; July 27, 1825; Four-feet Transit Instrument. Difference of R. A. = $2' 11''.720$ (5 Obs.) Tolerably steady. Passy; July 21, 1825; Seven-feet Equatorial. Difference of declin. = $5' 25''.096$ (4 Obs.) Very unsteady. Diff. = $1''.515$. Not more than 6 minutes on each side of the meridian when observed. The Barometer standing at 30.30 inches; Thermometer $74^\circ$.5. Passy; July 24, 1825; Seven-feet Equatorial. Difference of declination = $5' 24''.081$ (5 Obs.) Diff. = $4''.087$. Observed when within 10 minutes on either side of the meridian; stars tolerably steady. Passy; July 25, 1825; Seven-feet Equatorial. Difference of declination = $5' 24''.459$ (5 Obs.) Diff. = $1''.467$. Stars tolerably steady; and when observed not more than 10 minutes east and west of the meridian. Barometer 30.10 inches; Thermometer $70^\circ$. Passy; July 27, 1825; Seven-feet Equatorial. Difference of declination = $5' 24''.004$ (4 Obs.) Diff. = $2''.476$. Observed when 8 minutes on either side of the meridian. Tolerably steady. Mean Result. Difference of Right Ascension (in time) $2' 11''.758$ (19 Obs.); Difference of Declination $5' 24''.394$ (18 Obs.); Epoch 1825.56. No. XXIV. R. A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. In the former Paper the attention of astronomers was particularly directed to this star, on account of a considerable proper motion which it was supposed to have, in common with a very distant star 30 Scorpii; and as the point is a very interesting one, the preceding observations were made, with a view of placing the matter beyond doubt: a few comments upon them will perhaps be not without their use. \[ \begin{array}{ccc} \text{A} & 38 \text{ Ophiuchi} \\ \text{B} & \\ \end{array} \] \[ \begin{array}{ccc} \text{B} & \\ \text{A} & 36 \text{ Ophiuchi} \\ \end{array} \] \[ \begin{array}{ccc} \text{C} & \\ \end{array} \] \[ \begin{array}{ccc} \text{30 Scorpii} & \\ \end{array} \] In the above diagram, the close stars of A B of 36 Ophiuchi are represented relatively to the star C, to 30 Scorpii, and to A B of 38 Ophiuchi, as seen in the telescope; C preceding A of 36 to the north, and A of 38 following it to the south. First, as it regards Declination. If any proper motion of 36 exist in this direction, (supposing the star C at rest) the effect of it will be to increase, or diminish No. XXIV. R. A. $17^\text{h} 4^\text{m}$; Decl. $26^\circ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. the difference of declination of AC; and should A of 38 be fixed, the difference of declination of A of 36, and A of 38, will also be increased or diminished. By this mode of observing we have two chances of detecting proper motion, each of which will afford a verification of the other; for suppose the star A of 36 Ophiuchi to have a motion toward the south, say at the rate of one second per annum, then will the difference of declination between it and the star C to the north of it, be increased annually by one second; but that which increased the difference of declination between these two stars, should diminish the difference of declination between A of 36, and A of 38 Ophiuchi; and if our observations be correct, the increase of difference on the one hand, should be exactly equal to the decrease of it, on the other; and vice versa, should the proper motion of A of 36, carry it toward the north. Secondly, in Right Ascension. Suppose the proper motion of A of 36 to be toward the west annually one second, the result will be, to lessen the difference of right ascension of it, and of the preceding star C, and at the same time to augment the difference of right ascension between A of 36, and A of 38; and, as before, the decrease in the one instance, should be equalled by the increase in the other; and if the proper motion of A of 36, take an easterly direction, it will be detected by consequences opposite to those just described, but offering similar verifications. and positions of 36 double and triple stars, &c. No. XXIV. R.A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. In the case of 61 Cygni, by following a similar mode of observing, (but using six stars of comparison instead of two,) I satisfied myself in a very few months, of the enormous proper motion of that extraordinary double star. To those who may feel disposed thus to attack proper motion, I would hint, how indispensable it is, that their Equatorial should be well clamped, and that they should wait during the observations of difference of declination, till the earth’s diurnal motion bring each of the following stars, opposite that part of the wire where the bisection of the first star was made; the results will then be charged with no instrumental error, which it is in their power to avoid: the observations also should be conducted as nearly on the meridian as possible. When the above was written, I was not aware that the star 38 Ophiuchi had been observed since the time of Flamsteed; on examining however Piazzi’s catalogue, I find that it stands there under the name of 31 Scorpii, and that its place has been determined by 19 observations of that eminent astronomer; perhaps therefore some light may at the present time, be thrown upon the subject under consideration; but some corrections will be needed by our observations, to render them comparable with those, to which we are alluding. The star 36 Ophiuchi is composed of two stars of nearly equal magnitudes, and distant from each other $5''.200$; whether Bradley’s instruments showed it double, does not appear; nor from Piazzi’s catalogue, does it seem that he saw it otherwise than as a single star; hence it is fair to No. XXIV. R. A. $17^h\ 4^m$; Decl. $26^\circ\ 18'$ S. 36 Ophiuchi; H. and S. 243. continued. suppose, that the star was by one and the other observed as single; our observations therefore must be corrected by half the difference of declination, and by half the difference of right ascension, which with the preceding distance, and position $41^\circ\ 32'$ will be $1''.724$ in declination, and $1''.946$ on the parallel, equal to $0''.147$ of right ascension in time. For the star 38 Ophiuchi no correction of this sort will be required: its smaller star was certainly neither seen by Bradleynor by Piazzi; and its magnitude, even were it at the time closer than it now is, would not sensibly alter the apparent centre of the disc of A of 38. But the differences of declination observed by us are uncorrected for refraction: the necessary equations being applied, we get, Diff. of decl. of A of 36 Ophiuchi & of 30 Scorpii $3'\ 2''.403$ & A of 38 Ophiuchi $5'\ 25''.764$; and when the corrections to reduce these results to observations of the centre of the two stars of 36 Ophiuchi are applied, the quantities become $3'\ 4''.127$ and $5'\ 24''.040$ for the differences of declination; and for differences of right ascension (in time) $52''.591$ and $2'\ 11''.905$ respectively. Now by Bessel's proper motion,* the difference of declination of 36 Ophiuchi and of 30 Scorpii, Epoch 1825.57, should be $3'\ 4''.930$, differing with our determination only 8-tenths of a second: hence in declination, the two stars have either the same, or no proper motion. But Bessel does not give the proper motion in right ascension, for it appears that Bradley† did not observe the * Vide Fundam. Astronom. page 311. † In Bradley's published observations I have not met with any observed R. A. of 30 Scorpii, nor have I found any observation of 38 Ophiuchi, in the manuscript transits of both stars; Piazzi however, by a comparison of his own observations with those of preceding astronomers, assigns to them quantities, which for 1825.57 would give difference of R. A. (in time) $52''.50$, agreeing with our determination to 9-hundredths of a second; hence also in R. A. as well as in declination, they have, if any, the same proper motion. If however the proper motions attributed to them be correct, and if none be enjoyed by A of 38 Ophiuchi, the difference of declination between 36 and 38 should be $5' 23''.073$, differing not one second from our determination: and if the proper motion in right ascension attributed to 36 be correct (the star 38 being fixed), the difference of R. A. (in time) between them should be $2' 11''.76$ only fourteen hundredths of a second, at variance with our observations; quantities which may be very fairly attributed to errors of observation. Hence it follows, that the two stars 36 Ophiuchi and 30 Scorpii, although distant from each other more than 12 minutes, are journeying together through space; and that the annual proper motions ($1''.0756$ and $1''.1155$ toward the south, and $0''.59$ and $0''.58$ toward the west), assigned to them, are true. From the above investigation we also learn, that the star 38 Ophiuchi has no sensible proper motion; consequently the observed increase of distance between it and the small star,* if it exist, must probably be sought for, in some peculiarity of the latter. * Referred to in page 209. Mr. South's re-examination of the apparent distances No. XXV. R.A. 17° 8' ; Decl. 25° 3' N. δ Herculis; V. 1; H. and S. 246. Double; 4th and 10th magnitudes; small, blue. Passy; June 21, 1825; Seven-feet Equatorial. Position = 83° 26' sf | 7 Obs. | Diff. = 1° 25' } Not steady. Distance = 26".534 | 5 Obs. | Diff. = 1".010 } Observed on the meridian; night not very favourable. Passy; June 30, 1825; Seven-feet Equatorial. 5th and 10th magnitudes. Position = 83° 52' sf | 7 Obs. | Diff. = 1° 30' } Unusually steady. Distance = 26".659 | 5 Obs. | Diff. = 0".697 } Observed on the meridian; the small star is blue, and bears a very good illumination. The night is extremely favourable: in the results I have the greatest confidence. Passy; July 1, 1825; Seven-feet Equatorial. 5th and 10th magnitudes. Position = 83° 42' sf | 7 Obs. | Diff. = 0° 51' } Very steady. Distance = 26".699 | 5 Obs. | Diff. = 0".697 } Small star decidedly blue, and bears a very good illumination. Observations made when on the meridian, and are extremely satisfactory. Passy; July 4, 1825; Seven-feet Equatorial. 5th and 9th magnitudes. Position = 83° 12' sf | 7 Obs. | Diff. = 1° 35' } Tolerably steady. Distance = 26".883 | 5 Obs. | Diff. = 0".432 } Observed when 25 minutes west of the meridian. Mean Result. Position 83° 33' sf (28 Obs.); Distance 26".694 (20 Obs.); Epoch 1825.50. The change stated to have taken place in this star is confirmed by the present observations; according to which, compared with those of 1821, a motion of +1° 23' in angle, and —2".175 in distance, has taken place since our former measures. This is a remarkable verification of the relative motion both in position and distance; and as the change is contrary to what the presumed proper motion of the large star would alone produce, this star merits particular attention. (H.) No. XXVI. R. A. 17\textsuperscript{h} 56\textsuperscript{m}; Decl. 2° 33' N. 70 p Ophiuchi; II. 4; H. and S. 258. Double; 7\(\frac{1}{2}\) and 8\(\frac{1}{2}\) magnitudes. Passy; April 3, 1825; Seven-feet Equatorial. Position = \(55° 51'\) sf | 7 Obs. | Diff. = \(2° 25'\) Unsteady. Distance = \(4'' 843\) | 6 Obs. | Diff. = \(0''.553\) Difficult. Observed when 1° 40' east of the meridian; the angles are perhaps as good as can be expected at so great a distance from the meridian: the distances, on account of unsteadiness of the stars, were gotten with considerable difficulty, and probably are a little liable to suspicion. Passy; May 3, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = \(52° 3'\) sf | 7 Obs. | Diff. = \(1° 44'\) \(\frac{1}{2}\) hour east of the meridian. Position = \(51° 57'\) sf | 7 Obs. | Diff. = \(1° 43'\) \(\frac{1}{2}\) hour . The first set obtained with 181; the second set with 413; the night unfavourable; the stars neither well defined nor steady; indeed the weather is become very bad for delicate observations. Passy; June 23, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = \(58° 50'\) sf | 7 Obs. | Diff. = \(4° 58'\). On the meridian. Stars extremely ill defined and very unsteady; so much so that I do not consider the results entitled to the least confidence; measures of distance altogether impracticable; the night is beautifully clear, not a cloud visible; but the extreme unsteadiness of the stars obliges me to discontinue observing, although I do it with the greatest reluctance. Passy; June 29, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 9th magnitudes. Position = \(58° 15'\) sf | 7 Obs. | Diff. = \(1° 24'\) On the meridian. Distance = \(4''.874\) | 5 Obs. | Diff. = \(0''.264\) Stars very steady and well defined; small, certainly not blue; measures are satisfactory. Passy; June 30, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 8\(\frac{1}{2}\) magnitudes. Position = \(57° 13'\) sf | 7 Obs. | Diff. = \(1° 36'\) On the meridian. Distance = \(4''.419\) | 5 Obs. | Diff. = \(0''.432\) Stars well defined and steady; measures good. Mr. South's re-examination of the apparent distances No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'$ N. 70 p Ophiuchi; II. 4; H. and S. 258. continued. Passy; July 1, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $58^\circ\ 10'\ 8f$ | 7 Obs. | Diff. = $1^\circ\ 32'$ | On the meridian. Distance = $5''.150$ | 5 Obs. | Diff. = $0''.721$ Stars very steady and well defined; measures extremely satisfactory. Passy; July 2, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $9\frac{1}{2}$ magnitudes. Position = $58^\circ\ 18'\ 8f$ | 7 Obs. | Diff. = $2^\circ\ 8'$ | Unsteady. Distance = $4''.929$ | 5 Obs. | Diff. = $0''.408$ Observed on the meridian; stars tolerably well defined. Passy; July 4, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $58^\circ\ 7'\ 8f$ | 7 Obs. | Diff. = $0^\circ\ 38'$ | Not steady. Distance = $4''.594$ | 5 Obs. | Diff. = $0''.264$ Observed when 8 minutes west of the meridian; pretty well defined. Passy; July 5, 1825; Seven-feet Equatorial. $8\frac{1}{2}$ and $9\frac{1}{2}$ magnitudes. Position = $57^\circ\ 32'\ 8f$ | 7 Obs. | Diff. = $1^\circ\ 41'$ | On the meridian. Distance = $4''.789$ | 5 Obs. | Diff. = $0''.481$ Stars unsteady, and occasionally very faint; light clouds passing over them. Passy; July 13, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and $8\frac{1}{2}$ magnitudes. Position = $57^\circ\ 56'\ 8f$ | 7 Obs. | Diff. = $2^\circ\ 20'$ | Not very steady. Distance = $4''.491$ | 5 Obs. | Diff. = $0''.312$ Observed when 10 minutes east of the meridian. Mean Result. Position $57^\circ\ 48'\ 8f$ (63 Obs.); Epoch 1825.48; Distance $4''.763$ (41 Obs.); Epoch 1825.48. In taking the mean, the observations of May 3 are rejected. No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'N.$ 70 p Ophiuchi; II. 4; H. and S. 258; continued. Second Series. Passy; August 16, 1825; Seven-feet Equatorial. $7\frac{1}{2}$ and $8\frac{1}{2}$ magnitudes. Position = $58^\circ\ 38'\ s.f$ | 7 Obs. | Diff. = $2^\circ\ 37'$ Distance = $4''.814$ | 5 Obs. | Diff. = $0''.456$ Very steady. Observed on the meridian. Passy; August 17, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $58^\circ\ 9'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 11'$ Distance = $4''.779$ | 5 Obs. | Diff. = $0''.505$ Very steady. Observed on the meridian. Passy; August 20, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $58^\circ\ 13'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 5'$ Distance = $4''.874$ | 5 Obs. | Diff. = $0''.889$ Very steady. Observed on the meridian. Passy; August 21, 1825; Seven-feet Equatorial. 7th and $8\frac{1}{2}$ magnitudes. Position = $58^\circ\ 41'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 27'$ Distance = $4''.714$ | 5 Obs. | Diff. = $0''.336$ Very steady. Observed on the meridian. Passy; August 23, 1825; Seven-feet Equatorial. 7th and $8\frac{1}{2}$ magnitudes. Position = $58^\circ\ 17'\ s.f$ | 7 Obs. | Diff. = $2^\circ\ 21'$ Distance = $4''.566$ | 5 Obs. | Diff. = $0''.216$ Not very steady. Passy; September 1, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = $58^\circ\ 32'\ s.f$ | 7 Obs. | Diff. = $2^\circ\ 58'$ Distance = $4''.864$ | 5 Obs. | Diff. = $0''.360$ Tolerably steady. Observed by twilight, without artificial illumination, when 5 minutes east of the meridian. Mean Result. Position $58^\circ\ 25'\ s.f$ (42 Obs.); Distance $4''.769$ (30 Obs.); Epoch 1825.64. No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'$ N. 70 p Ophiuchi; II. 4; H. and S. 258; continued. The mean of both series, allowing each a weight proportioned to the number of measures, gives for the Epoch $1825.56$; Position $58^\circ\ 3'\ sf$ (105 measures.) Distance $4''.765$ (71 Obs.) If now we collect all the observations made in the years 1821, 1822, 1823, and 1825, we find as follows: 1821.51; $66^\circ\ 50'\ sf$; (Mean of Herschel's, South's, and Struve's Obs. Phil. Trans. 1824. iii. p. 290. 1822.49; $65^\circ\ 7'\ sf$; H. and S. 1822. 1823.32; $63^\circ\ 25'\ sf$; H. and S. 1823. 1825.54; $58^\circ\ 3'\ sf$; S. ut supra. The intervals are 0.98, 0.83, and 2.22 years, and the Angles described respectively in them — $1^\circ.717$, $-1^\circ.700$, and $-5^\circ.367$, whence the angular velocities come out respectively $-1^\circ.751$, $-2^\circ.050$, and $-2^\circ.418$, all of them greatly below what appears to have been the velocity up to 1820, and not differing more than might fairly be expected, considering the difficulty presented by the unequal size of the stars. The last determination, considering the great number of measures it rests upon, may be regarded as entitled to great confidence, in spite of the discordant results of April 3 and May 3, 1825, which, however, whether rejected or retained, make little difference in the final mean. It was on these (unluckily), that the note at the end of the paper of 1824 was founded. The fact of a great diminution of angular velocity then in No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'$ N. 70 p Ophiuchi; II. 4; H. and S. 258. continued. this star can hardly be doubted. But as it is inconsistent with the laws of central forces that this should take place without a corresponding increase of distance (for the angular velocity is inversely as the square of the distance in the apparent as well as in the real orbit, whatever be its position with regard to the line of sight), it becomes necessary to examine more minutely into the distances at the different epochs. It will be observed, however, that in all the interval from 1781 to 1819 we find no measure of the distance, and that the maximum of angular velocity must have taken place somewhere in this interval. (See Phil. Trans. 1824. iii. p. 290-291.) In such a case we must recur to estimations in diameters, though necessarily less to be depended on than positive measures. On re-examining Sir W. Herschel's MSS., we fortunately find the following observations, which throw considerable light on this point, and in some measure supply the deficiency of measures. It will be recollected that his measures of distance are always supposed to include both diameters of the stars measured. "October 27, 1779. $3''.593$. They are very difficult to measure, and for that reason I join also an exact estimation by the eye. The vacancy between them is $2\frac{1}{2}$ diameters of the largest—certainly more than two and less than 3. The smallest may be about $\frac{2}{3}$ or $\frac{3}{5}$ of the diameter of the other. They are exactly in the equatorial motion; the largest goes first. The situation I took by letting them run along the hair." MDCCCXXVI. Mr. South's re-examination of the apparent distances No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'$ N. 70 p Ophiuchi; II. 4; H. and S. 258. continued. "May 11, 1780. $5''.468$; but very difficult to take, and "therefore not much to be depended on." . . . "I am "apt to believe that this method generally gives the "distance too large." "June 19, 1780. $1\frac{2}{3}$ diameter, or between $1\frac{1}{2}$ and $1\frac{3}{4}$ by "very exact estimation. . . . . By measures $4''.375$." "August 28, 1780. $4''.531$. Almost 2 diameters of the "largest, which is the preceding star. The difference "in size almost 2 to 1, or $1\frac{3}{4}$ to 1." "May 27, 1781. Much above 2 diameters of the largest "with 460." "April 28, 1783. Above 2 diameters." From all these observations, it is clear that the interval between the stars about the year 1780 could not be less than 2 diameters, and by a mean of all the estimations, must have been about this quantity, or rather more than less. The small star being taken at 0.6 of the diameter of the large, the distance of their centres must have been $2.8 D$, and the distance, including the diameters, $3.6 D$. Now as this distance by the mean of all the measures, was $4''.492$, we have $D = 1''.25$ and $2.8 D = 3''.500$. Again; we find the following observation, the only one which occurs in the interval in question. "June 3, 1804. About $1\frac{1}{4}$ diameter of L." This would give for the distance between the centers $2.05 D = 2''.5625$. So far then as estimations by diameters can go, these and positions of 36 double and triple stars, &c. No. XXVI. R. A. $17^h\ 56^m$; Decl. $2^\circ\ 33'$ N. 70 p Ophiuchi; II. 4; H. and S. 258. continued. observations establish the point in question, viz. that a very considerable diminution of distance really accompanied the great increase of angular velocity, and that as the velocity has since diminished, the distance has actually undergone a corresponding augmentation. It is much to be regretted that the opportunity of observing this interesting object in perihelio has been lost. (H.) No. XXVII. R. A. $18^h\ 18^m$; Decl. $0^\circ\ 5'$ N. 59 Serpentis (d); I. 12; H. and S. 268; Double; 7 and $9\frac{1}{2}$ magnitudes. Passy; July 12, 1825; Seven-feet Equatorial. Position = $50^\circ\ 12'\ n\ p$ Distance = $4''.486$ | 7 Obs. | Diff. = $2^\circ\ 43'$ } | 5 Obs. | Diff. = $0''.601$ } Unsteady and ill defined. Observed when 10 minutes east of the meridian. Passy; July 14, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $47^\circ\ 18'\ n\ p$ Distance = $4''.369$ | 7 Obs. | Diff. = $1^\circ\ 17'$ } | 5 Obs. | Diff. = $0''.384$ } Rather difficult. Observed when 10 minutes east of the meridian. Stars not always well defined, but are tolerably steady. Passy; July 15, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 10th magnitudes. Position = $49^\circ\ 9'\ n\ p$ Distance = $4''.338$ | 7 Obs. | Diff. = $1^\circ\ 58'$ } | 5 Obs. | Diff. = $0''.601$ } Rather difficult. Observed on the meridian. Stars neither steady nor well defined. The smaller one is blue. Passy; July 18, 1825; Seven-feet Equatorial. 7\(\frac{1}{2}\) and 10th magnitudes. Position = $48^\circ\ 19'\ n\ p$ Distance = $4''.347$ | 7 Obs. | Diff. = $3^\circ\ 30'$ } | 5 Obs. | Diff. = $0''.601$ } Neither steady nor well defined. Observed on the meridian. No. XXVII. R. A. $18^h\ 18^m$; Decl. $0^\circ\ 5'$ N. 59 Serpentis (d); I. 12; H. and S. 268. continued. Passy; July 19, 1825; Seven-feet Equatorial. 7th and 10th magnitudes. Position = $47^\circ\ 54'\ np$ | 7 Obs. | Diff. = $3^\circ\ 5'$ Distance = $4''.784$ | 5 Obs. | Diff. = $0''.408$ } Very unsteady. Mean Result. Position $48^\circ\ 34'\ np$ (35 Obs.); Distance $4''.465$ (25 Obs.); Epoch 1825.54. These observations compared with those of 1822 certainly afford no corroboration of the idea of an approach of these stars towards each other. (H.) No. XXVIII. R. A. $18^h\ 21^m$; Decl. $58^\circ\ 42'$ N. 39 Draconis; I. 7; H. and S. 269. Triple; A of the 5th, B of the 10th, and C of the 8th magnitudes. Measures of A B. Passy; July 14, 1825; Seven-feet Equatorial. Position = $84^\circ\ 48'\ nf$ | 7 Obs. | Diff. = $3^\circ\ 11'$ Distance = $3''.782$ | 5 Obs. | Diff. = $0''.937$ } Difficult. Observed $\frac{1}{2}$ hour west of the meridian; the small star is light blue, and bears but an indifferent illumination; stars steady, and admirably defined. Passy; July 16, 1825; Seven-feet Equatorial. 6th and 10th, or 11th magnitudes. Position = $84^\circ\ 47'\ nf$ | 7 Obs. | Diff. = $2^\circ\ 48'$ Distance = $3''.431$ | 5 Obs. | Diff. = $0''.697$ } Rather difficult. The measures procured when the stars were 25 minutes west of the meridian; the small one is decidedly light blue; not steady. and positions of 36 double and triple stars, &c. No. XXVIII. R. A. 18h 21'; Decl. 58° 42' N. 39 Draconis; I. 7; H. and S. 269. continued. Passy; July 20, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 84° 7' nf | 7 Obs. | Diff. = 2° 0' } Unsteady. Distance = 3" .655 | 5 Obs. | Diff. = 0" .553 The small star is blue, and bears a tolerable illumination. Passy; July 21, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = 84° 58' nf | 7 Obs. | Diff. = 3° 58' } Unsteady. Distance = 3" .503 | 5 Obs. | Diff. = 0" .481 The small star, which is light blue, bears a very tolerable illumination. Measures of A C. Passy; July 14, 1825; Seven-feet Equatorial. Position = 68° 42' nf | 5 Obs. | Diff. = 1° 9' } Very steady. Distance = 1' 28" .691 | 5 Obs. | Diff. = 1" .659 Passy; July 16, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = 68° 35' nf | 5 Obs. | Diff. = 0° 45' } Rather unsteady. Distance = 1' 29" .301 | 5 Obs. | Diff. = 0" .529 Observed when 10 minutes west of the meridian; a part, (perhaps a sixth) of the object-glass not in use, from the interference of the observatory timbers. Passy; July 20, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = 68° 32' nf | 5 Obs. | Diff. = 0° 53' } Unsteady. Distance = 1' 28" .862 | 5 Obs. | Diff. = 0" .649 Perhaps one-fourth of the object-glass unemployed. Passy; July 21, 1825; Seven-feet Equatorial. 6th and 9th magnitudes. Position = 68° 34' nf | 5 Obs. | Diff. = 1° 9' } Very unsteady. Distance = 1' 28" .903 | 5 Obs. | Diff. = 0" .841 Mr. South's re-examination of the apparent distances No. XXVIII. R. A. 18h 21m; Decl. 58° 42' N: 39 Draconis; I. 7; H. and S. 269. continued. Mean Result. of A B. \{Position 84° 40' nf (28 Obs.);\} Epoch 1825.55. \{Distance 3''.593 (20 Obs.);\} of A.C. \{Position 68° 36' nf (20 Obs.);\} Epoch 1825.55. \{Distance 1' 28''.939 (20 Obs.);\} These observations afford no corroboration of the change supposed to take place in this star, but rather militate against it: the difference of 1° 25' between their mean and that of the measures of 1823, lying the contrary way to that presumed. (H.) No. XXIX. R. A. 18h 31m; Decl. 38° 37' N. α Lyrae; V. 31; H. and S. 272. Double; 1st and 15th magnitudes. Passy; July 6, 1825; Seven-feet Equatorial. Position = 43° 56' sf | 5 Obs. | Diff. = 2° 45'. Excessively difficult. Observed with 157, on the meridian. Passy; July 23, 1825; Seven-feet Equatorial. 1st and 15th magnitudes. Position = 44° 41' sf | 7 Obs. | Diff. = 2° 52' } Excessively difficult. Distance = 41''.873 | 5 Obs. | Diff. = 0''.841 } Observed on the meridian with 157. Passy; July 24, 1825; Seven-feet Equatorial. 1st and 15th magnitudes. Position = 42° 35' sf | 7 Obs. | Diff. = 1° 48' } Excessively difficult. Distance = 41''.935 | 5 Obs. | Diff. = 1''.683 } Observed with 157; stars on the meridian, and very steady. Passy; July 25, 1825; Seven feet Equatorial. 1st and 15th magnitudes. Position = 44° 3' sf | 7 Obs. | Diff. = 1° 12' } Excessively difficult. Distance = 41''.077 | 5 Obs. | Diff. = 1''.154 } Observed on the meridian, with 157. and positions of 36 double and triple stars, &c. No. XXIX. R.A. 18\textsuperscript{h} 31\textsuperscript{m}; Decl. 38° 37' N. α Lyrae; V. 31; H. and S. 272. continued. Passy; July 26, 1825; Seven-feet Equatorial. 1st and 15th magnitudes. Position = 43° 20' sf | 2 Obs. | Diff. = 1° 20'. Excessively difficult. On the meridian, and observed with 157; the night is become cloudy; no more measures can be procured. Passy; July 27, 1825; Seven-feet Equatorial. 1st and 15th magnitudes. Position 42° 26' sf | 7 Obs. | Diff. = 1° 35'. Excessively difficult. Distance 41".366 | 5 Obs. | Diff. = 0".360 Stars tolerably steady, and observed on the meridian with 157. Mean Result. Position 43° 30' sf (35 Obs.); Distance 41".563 (20 Obs.); Epoch 1825.56 There is a change of — 1° 23' in the angle and + 0".535 in the distance since 1822. The former is in the direction pointed out in the former paper, and agrees tolerably in quantity with that assigned. The difference of distance probably arises from error of observation. (H.) No. XXX. R.A. 18\textsuperscript{h} 38\textsuperscript{m}; Decl. 39° 27' N. 5 Lyrae; II. 6; H. and S. 278. Double; equal; each 8th magnitude. Passy; July 12, 1825; Seven-feet Equatorial. Position = 69° 6' sf or np | 7 Obs. | Diff. = 1° 0'. Distance = 3".438 | 5 Obs. | Diff. = 0".408 Stars very steady and well defined, and 20 minutes east of the meridian. Passy; July 13, 1825; Seven-feet Equatorial. Equal; each 8\textsuperscript{1/2} magnitude. Position = 69° 0' sf or np | 7 Obs. | Diff. = 2° 8'. Distance = 3".299 | 5 Obs. | Diff. = 0".192 Observed on the meridian; stars very steady. Mr. South's re-examination of the apparent distances No. XXX. R.A. $18^h\ 38^m$; Decl. $39^\circ\ 27'$ N. 5 Lyrae; II. 6; H. and S. 278. continued. Passy; July 15, 1825; Seven-feet Equatorial. Equal; each 8th magnitude. Position $= 69^\circ\ 21'\ np$ or $sf$ | 7 Obs. | Diff. $= 2^\circ\ 2'$ } Very satisfactory. Distance $= 3''.318$ | 5 Obs. | Diff. $= 0''.384$ } Observed on the meridian; stars very steady. Passy; July 16, 1825; Seven-feet Equatorial. Equal; each $8\frac{1}{2}$ magnitude. Position $= 69^\circ\ 17'\ sp$ or $nf$ | 7 Obs. | Diff. $= 2^\circ\ 13'$ } Not steady. Distance $= 3''.306$ | 5 Obs. | Diff. $= 0''.432$ } Observed on the meridian. Mean Result. Position $69^\circ\ 11'\ np$ or $sf$ (28 Obs.); Distance $3''.340$ (20 Obs.); Epoch 1825.53. These observations corroborate the motion ascribed to 5 Lyrae. The change of position in 3.11 years amounts to $-0^\circ\ 45'$. Calculating on the presumed angular motion $-0''.325$, it should have been $-1^\circ\ 0'$. The difference is nearly insensible. No. XXXI. R.A. $19^h\ 39^m$; Decl. $44^\circ\ 42'$ N. δ Cygni; I. 94; H. and S. 304. Passy; July 26, 1825; Seven-feet Equatorial. The night being unusually fine, the instrument was placed upon this star when on the meridian: it was examined by Monsr. Gambart (Director of the Royal Observatory at Marseilles) and also by myself, with 181, 327, 512 and 787. Both No. XXXI. R. A. $19^h\ 39^m$; Decl. $44^\circ\ 42'N.$ $\delta$ Cygni; I. 94; H. and S. 304. continued. observers agree that it is as round and as sharply defined as possible; neither of us can entertain the slightest suspicion of seeing it elongated in any direction; with 787 it has the appearance of a planetary disc, and is a most beautiful object: it is so extremely steady, that with this high power there is not any difficulty in keeping it bisected by the wire of the micrometer, when placed perpendicular to the diurnal motion. No. XXXII. R. A. $19^h\ 41^m$; Decl. $11^\circ\ 22'N.$ $\pi$ Aquilæ; I. 92; H. and S. 306. Double; 8th and $8\frac{1}{4}$ magnitudes. Passy; August 1, 1825; Seven-feet Equatorial. Position = $32^\circ\ 58'\ s.f.$ | 6 Obs. | Diff. = $4^\circ\ 12'$ l Tolerably steady. Distance = $1''.\ 368$ | 5 Obs. | Diff. = $0''.\ 288$ Observed with 413, when on the meridian. "If the position $32^\circ\ 58'\ s.f.$ be exact, there must be some monstrous error in that given to the Royal Society in the first memoir, where the position stands $45^\circ\ 27'\ s.f.$; the only mode to reconcile the differences is, to suppose that in one instance the micrometer has been erroneously read 10 degrees." Note made in the rough journal at the breakfast table on the morning of August 2, when reducing the observations. Passy; August 5, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{4}$ magnitudes. Position = $32^\circ\ 45'\ s.f.$; single observation. Observed when $2\frac{1}{2}$ hours east of the meridian: of course this measure must not be considered as a standard one, but MDCCCXXVI. Mr. South's re-examination of the apparent distances No. XXXII. R. A. $19^h\ 41^m$; Decl. $11^\circ\ 22' N.$ π Aquilæ; I. 92; H. and S. 306. continued. I think it is very evident the erroneous result will be that given in the published memoir; supposing the wrong 10th degree to have been taken, the mean angle as read off, instead of being $-44^\circ\ 33'$ would be $-54^\circ\ 33' = +35^\circ\ 27'$, a difference from the angle here determined easily enough to be admitted, when the closeness of the stars is considered. Passy; August 9, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 32^\circ\ 35'\ s.f.\ | 6$ Obs. | Diff. $= 2^\circ\ 17'$. Rather difficult. Observed with $413$ when 20 minutes west of the meridian; stars very unsteady, so much so that measures of distance are impracticable. Set the position wire to $-45^\circ$, and it is so intolerably offensive to the eye that it never can have passed for a measure; the stars stride across the wire. There can be no doubt therefore, that the micrometer was in the observations of September 1823, read off incorrectly. Passy; August 10, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{4}$ magnitudes. Position $= 34^\circ\ 22'\ s.f.\ | 6$ Obs. | Diff. $= 2^\circ\ 20'$ Distance $= 1^\circ\ 527$ 5 Obs. | Diff. $= 0''.360$ Extremely difficult. Observed when on the meridian with $327$, the highest power which I can use to night with advantage. Passy; August 12, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{4}$ magnitudes. Position $= 33^\circ\ 4'\ s.f.\ | 6$ Obs. | Diff. $= 2^\circ\ 5'$. Extremely difficult. Observed on the meridian with $327$, the highest power which the unsteadiness of the stars will allow me advantageously to employ. Observations of distance are impracticable. No. XXXII. R. A. $19^h\ 41^m$; Decl. $11^\circ\ 22'N$. π Aquilæ; I. 92; H. and S. 306. continued. Passy; August 17, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $34^\circ\ 25'\ s f$ | 8 Obs. | Diff. = $2^\circ\ 55'$ Distance = $1'.515$ | 5 Obs. | Diff. = $0''.192$ Very satisfactory. Observed with 413, when 15 minutes west of the meridian; stars remarkably steady. Passy; August 21, 1825; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position = $33^\circ\ 10'\ s f$ | 7 Obs. | Diff. = $1^\circ\ 30'$ Distance = $1''.786$ | 5 Obs. | Diff. = $0''.481$ Tolerably steady. Observed on the meridian with 413. Mean Result. Position $33^\circ\ 27'\ s f$ (40 Obs.) ; Distance $1''.549$ (20 Obs.); Epoch 1825.61. These observations make it clear that a mistake of $10^\circ$ (as supposed by Mr. South above) must have been committed in the reading off of the micrometer in 1823. This star must therefore be struck out of the list of Binary stars, as the present measures compared with that of 1783 present only a difference of $0^\circ\ 57'$. This will serve among other instances to show how necessary it is to repeat the measures of double stars on several nights. (H.) No. XXXIII. R. A. $20^h\ 15^m$; Decl. $77^\circ\ 10'N$. ζ Cephei; III. 70; H. and S. 321. Double; $5\frac{1}{2}$ and 10th magnitudes; small, blue. Passy; August 23, 1825; Seven-feet Equatorial. Position = $38^\circ\ 34'\ s f$ | 7 Obs. | Diff. = $3^\circ\ 3'$ Distance = $8''.350$ | 5 Obs. | Diff. = $0''.745$ Tolerably steady. Observed on the meridian. Mr. South's re-examination of the apparent distances No. XXXIII. R. A. $20^h\ 15^m$; Decl. $77^\circ\ 10' N.$ $\eta$ Cephei; III. 70; H. and S. 321. continued. Passy; August 31, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $37^\circ\ 33'\ s.f$ | 7 Obs. | Diff. = $2^\circ\ 54'$ } Unsteady. Distance = $8'.240$ | 5 Obs. | Diff. = $0''.432$ } Unsteady. Stars on the meridian when observed. Passy; September 5, 1825; Seven-feet Equatorial. 7th and 11th magnitudes. Position = $33^\circ\ 56'\ s.f$ | 7 Obs. | Diff. = $1^\circ\ 50'$ } Difficult. Distance = $7''.533$ | 5 Obs. | Diff. = $0''.360$ } Difficult. Small star decidedly blue; night hazy; stars unsteady: observed on the meridian. Passy; September 6, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $35^\circ\ 7'\ s.f$ | 7 Obs. | Diff. = $4^\circ\ 26'$ } Difficult. Distance = $7''.540$ | 5 Obs. | Diff. = $0''.601$ } Difficult. Night very hazy; stars unsteady; the small one is light blue. Observed on the meridian. Passy; September 10, 1825; Seven-feet Equatorial. 6th and 10th magnitudes. Position = $36^\circ\ 52'\ s.f$ | 7 Obs. | Diff. = $3^\circ\ 5'$ } Difficult. Distance = $7''.692$ | 5 Obs. | Diff. = $0''.721$ } Difficult. Small star pale blue; night hazy; stars unsteady, and on the meridian. Mean Result. Position $36^\circ\ 24'\ s.f$ (35 Obs.); Distance $7''.871$ (25 Obs.); Epoch 1825.67. This star has been examined with much perseverance, yet there prevails considerable discordance between the measures at different epochs, and our judgement must be suspended with respect to its motion. (H.) No. XXXIV. R. A. 20h 59m; Decl. 37° 52' N. 61 Cygni; IV. 18; H. and S. 329. Double; 7th and 8th magnitudes. Passy; September 2, 1825; Seven-feet Equatorial. Position = 3° 18' nf | 7 Obs. | Diff. = 1° 29' } Very good. Distance = 15".491 | 5 Obs. | Diff. = 0".481 } Observed on the meridian with 787; stars very steady. Passy; September 5, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 2° 41' nf | 7 Obs. | Diff. = 1° 1' } Unsteady. Distance = 15".852 | 5 Obs. | Diff. = 0".721 } Observed when on the meridian. Night very hazy. Passy; September 6, 1825; Seven-feet Equatorial. 8th and 9th, and 9th and 10th magnitudes. Position = 3° 7' nf | 7 Obs. | Diff. = 0° 28' } Rather difficult. Distance = 15".201 | 5 Obs. | Diff. = 0".456 } Night extremely hazy, particularly during the observations of distance. Stars on the meridian, and tolerably steady. Passy; September 9, 1825; Seven-feet Equatorial. 7th and 8th, 8th and 9th magnitudes. Position = 3° 8' nf | 7 Obs. | Diff. = 0° 30' } Tolerably steady. Distance = 15".691 | 5 Obs. | Diff. = 0".769 } Observed when 15 minutes east of the meridian. Night very hazy. Passy; September 10, 1825; Seven-feet Equatorial. 7th and 8th magnitudes. Position = 2° 54' nf | 7 Obs. | Diff. = 0° 42' } Satisfactory. Distance = 15".073 | 5 Obs. | Diff. = 0".360 } Observed on the meridian. Night hazy, but the stars are very steady. Passy; September 20, 1825; Seven-feet Equatorial. 7th and 8th, and 8th and 9th magnitudes. Position = 3° 22' nf | 7 Obs. | Diff. = 2° 33' } Captain Beaufort. Distance = 15".689 | 5 Obs. | Diff. = 0".408 } Position = 3° 7' nf | 7 Obs. | Diff. = 0° 45' } South. Distance = 15".099 | 5 Obs. | Diff. = 0".192 } Night very hazy. Stars unsteady, and not well defined. Mr. South's re-examination of the apparent distances No. XXXIV. R. A. 20h 59m; Decl. 37° 52' N. 61 Cygni; IV. 18; H. and S. 329. continued. Passy; September 24, 1825; Seven-feet Equatorial. 6th and 7th magnitudes. Position = 2° 50' nf | 7 Obs. | Diff. = 0° 46' } South. Distance = 15''.689 | 5 Obs. | Diff. = 0''.697 } Position = 3° 13' nf | 7 Obs. | Diff. = 2° 8' } Captain Beaufort. Distance = 15''.208 | 5 Obs. | Diff. = 1''.034 } Stars well defined and very steady. Mean Result. Position 3° 4' nf (63 Obs.); Distance 15''.444 (45 Obs.); Epoch 1825.70. The result here given affords an extremely satisfactory verification of our former measures, and of the mean motion + 0°.730 assigned to this star. The interval of the epochs is 2.8 years, in which + 2° 3' ought by computation to have been described, while by observation + 2° 15' have been described. The distances too differ only by 0''.019, a quantity perfectly insensible. (H.) No. XXXV. R. A. 22h 8m; Decl. 36° 51' N. 1 Lacertae? H. and S. 341. Double; 8th and 10th magnitudes; small, blue. Passy; September 29, 1824; Seven-feet Equatorial. Position = 78° 33' sp | 5 Obs. | Diff. = 1° 59' } Very difficult. Distance = 15''.434 | 5 Obs. | Diff. = 0''.481 } Near this star, about 22h 4' ± Right Ascension, and 36° 52' ± North Declination, will be found a minute double star of the 1st or 2nd class; but it is not measurable with this instrument, although the night is particularly favourable. Passy; November 21, 1824; Seven-feet Equatorial. 7th and 10th magnitudes. Position = 75° 4' sp | 5 Obs. | Diff. = 0° 58' } Extremely difficult. Distance = 15''.809 | 5 Obs. | Diff. = 0''.986 } The small star is very obscure. and positions of 36 double and triple stars, &c. No. XXXV. R. A. 22\textsuperscript{h} 8\textsuperscript{m}; Decl. 36\textsuperscript{o} 51\textsuperscript{'} N. 1 Lacertae? H. and S. 341. continued. Passy; November 24, 1824; Seven-feet Equatorial. 9th and 12th magnitudes. Position = 77\textsuperscript{o} 55\textsuperscript{' sp} | 5 Obs. | Diff. = 1\textsuperscript{o} 24\textsuperscript{'} \{ Extremely difficult. Distance = 15\textsuperscript{"}.864 | 5 Obs. | Diff. = 0\textsuperscript{"}.841 \} Night unfavourable. Mean Result. Position 77\textsuperscript{o} 11\textsuperscript{' sp} (15 Obs.); Distance 15\textsuperscript{"}.732 (15 Obs.); Epoch 1824.84. When this star was observed, I was not aware that observations of it had been already communicated to the Royal Society which give, Position 78\textsuperscript{o} 43\textsuperscript{' sp}; Distance 15\textsuperscript{"}.619; Epoch 1823.72. No. XXXVI. R. A. 22\textsuperscript{h} 20\textsuperscript{m}; Decl. 0\textsuperscript{o} 57\textsuperscript{'} S. ζ Aquarii; II. 7; H. and S. 346. Double; 7th and 7\textsuperscript{1/2} magnitudes. Passy; September 4, 1825; Seven-feet Equatorial. Position = 88\textsuperscript{o} 17\textsuperscript{' sp} | 7 Obs. | Diff. = 0\textsuperscript{o} 34\textsuperscript{'} Unsteady. The night is become so bad, that observations of distance cannot be procured. Passy; September 15, 1825; Seven-feet Equatorial. 7th and 7\textsuperscript{1/2} magnitudes. Position = 88\textsuperscript{o} 32\textsuperscript{' sp} | 7 Obs. | Diff. = 0\textsuperscript{o} 53\textsuperscript{'} Tolerably steady. Distance = 4\textsuperscript{"}.039 | 5 Obs. | Diff. = 0\textsuperscript{"}.793 \} Observed on the meridian with 787. Passy; September 24, 1825; Seven-feet Equatorial. 7th and 7\textsuperscript{1/2} magnitudes. Position = 89\textsuperscript{o} 33\textsuperscript{' nf} | 7 Obs. | Diff. = 0\textsuperscript{o} 54\textsuperscript{'} SOUTH. Distance = 4\textsuperscript{"}.157 | 5 Obs. | Diff. = 0\textsuperscript{"}.168 \} Position = 88\textsuperscript{o} 42\textsuperscript{' nf} | 7 Obs. | Diff. = 2\textsuperscript{o} 58\textsuperscript{'} Captain Beaufort. Distance = 3\textsuperscript{"}.993 | 5 Obs. | Diff. = 0\textsuperscript{"}.481 \} Observed with 181; stars very steady. Mr. South's re-examination of the apparent distances, &c. No. XXXVI. R. A. 22h 20m; Decl. 0° 57' S. ζ Aquarii; II. 7; H. and S. 346. continued. Distance = 4''.032 | 5 Obs. | Diff. = 0''.432 } With 787 {SOUTH. Distance = 3''.835 | 5 Obs. | Diff. = 0''.336 } Captain BEAUFORT. Measures of distance gotten without any difficulty; both stars sharply defined, and as round as possible with 787. Passy; October 8, 1825; Seven-feet Equatorial. 7th and 7½ magnitudes. Position = 87° 52' nf | 7 Obs. | Diff. = 1° 31' } SOUTH. Distance = 4''.366 | 5 Obs. | Diff. = 0''.264 } Position = 90° 7' nf | 7 Obs. | Diff. = 1° 16' Captain BEAUFORT. Night become so hazy that the stars are no longer visible; when seen they were unsteady and ill defined. Passy; October 9, 1825; Seven-feet Equatorial. 8th and 9th magnitudes. Position = 88° 28' nf | 7 Obs. | Diff. = 0° 56' } SOUTH. Distance = 3''.809 | 5 Obs. | Diff. = 0''.360 } Position = 89° 56' nf | 7 Obs. | Diff. = 1° 2' } Captain BEAUFORT. Distance = 3''.818 | 5 Obs. | Diff. = 0''.841 } Night very hazy; stars unsteady. Position = 89° 15' nf | 14 Obs. | Diff. = 6° 29' } Monsr. GAMBEY. Distance = 4''.097 | 10 Obs. | Diff. = 0''.937 } Mean Result. Position 88° 56' nf (70 Obs.) ; Distance 4''.014 (45 Obs.); Epoch 1825.73. These measures verify the direction of the motion ascribed to this star, the present angle differing from that of 1822.27 by — 0° 33'. By calculation it ought to be — 1° 33'. The discrepancy between these and the former measures of distance is extraordinary. (H.) JAMES SOUTH. Passy; Rue Franklin, No. 19, Opposite the Champ de Mars and the Ecole Militaire. Latitude 48° 51' 31" N. Longitude 13''.36 (of time) west of the Royal Observatory of Paris. RE-EXAMINATION OF SEVEN DOUBLE STARS, MADE WHILST THE FORMER PART OF THIS COMMUNICATION WAS IN THE PRESS. No. I. R. A. $4^h\ 18^m$; Decl. $53^\circ\ 31'N$. 1 Camelopardali; H. and S. 43. Double; 8th and 9th magnitudes; small, bluish. Sloane-street; February 8, 1826; Seven-feet Equatorial. Position = $36^\circ\ 59'\ np$ | 8 Obs. | Diff. = $3^\circ\ 40'$ } Very hazy. Distance = $10''.212$ | 5 Obs. | Diff. = $6''.769$ Observed when $1\frac{1}{2}$ hours west of the meridian; stars ill defined, and very unsteady. Sloane-street; February 11, 1826; Seven-feet Equatorial. 8th and 10th magnitudes. Position = $37^\circ\ 31'\ np$ | 8 Obs. | Diff. = $1^\circ\ 43'$ } Hazy. Distance = $10''.593$ | 5 Obs. | Diff. = $6''.841$ Stars extremely unsteady, and at times very indistinct; observed when one hour west of the meridian. Sloane-street; February 12, 1826; Seven-feet Equatorial. 7th and 8th magnitudes. Position = $37^\circ\ 0'\ np$ | 8 Obs. | Diff. = $1^\circ\ 22'$ } Tolerably steady. Distance = $10''.055$ | 5 Obs. | Diff. = $0''.913$ Observed on the meridian; night favourable. Mean Result. Position $37^\circ\ 10'\ np$ (24 Obs.); Distance $10''.287$ (15 Obs.); Epoch 1826.10. Observations made in Blackman-street gave, Position $36^\circ\ 26'\ np$; Distance $10''.450$; Epoch 1822.05: hence this star is liable to no material change either of position or distance. MDCCCXXVI. Mr. South's re-examination of seven double stars, made No. II. R. A. $4^h\ 21^m$; Decl. $42^\circ\ 39'N.$ 57 m Persei; H. and S. 44. Double; 8th and $8\frac{1}{2}$ magnitudes. Sloane-street; February 6, 1826; Seven-feet Equatorial. Position $= 70^\circ\ 23'\ sp$ | 7 Obs. | Diff. = $0^\circ\ 43'$ } Cloudy. Distance $= 1'\ 50''.269$ | 7 Obs. | Diff. = $1''.418$ } Stars only visible by glimpses, and when seen very unsteady. Sloane-street; February 7, 1826; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 70^\circ\ 23'\ sp$ | 7 Obs. | Diff. = $0^\circ\ 32'$ } Ill defined and unsteady. Distance $= 1'\ 51''.192$ | 7 Obs. | Diff. = $0''.769$ } Observed when 40 minutes west of the meridian. Sloane-street; February 12, 1826; Seven-feet Equatorial. 8th and $8\frac{1}{2}$ magnitudes. Position $= 70^\circ\ 41'\ sp$ | 7 Obs. | Diff. = $0^\circ\ 43'$ } Satisfactory. Distance $= 1'\ 50''.638$ | 7 Obs. | Diff. = $1''.515$ } Observed when 70 minutes west of the meridian; stars tolerably steady and well defined. Mean Result. Position $70^\circ\ 29'\ sp$ (21 Obs.); Distance $1'\ 50''.700$ (21 Obs.); Epoch 1826.10. Our former measures were, Position $71^\circ\ 8'\ sp$; Distance $1'\ 50''.193$; Epoch 1821.91; agreeing sufficiently with the present determinations to render it probable that the star is liable to no very important change: it is true, the distance here given differs 5-tenths of a second from that arrived at by our joint observations, and that it lies in the right direction; still future observations must decide whether the discordance between Sir W. Herschel's measure of distance and our own, $= 13''.77'$, have any other foundation than instrumental error of the micrometer employed in 1783. whilst the former part of the communication was in the press. No. III. R. A. 6\textsuperscript{h} 14\textsuperscript{m}; Decl. 4° 41' N. 8 Monocerotis; H. and S. 69. Double; 7th and 8th magnitudes. Sloane-street; February 7, 1826; Seven-feet Equatorial. Position = 63° 38' nf | 5 Obs. | Diff. = 0° 24' } Unsteady. Distance = 14".332 | 5 Obs. | Diff. = 1".635 } Observed when 40 minutes east of the meridian; night unfavourable. Sloane-street; February 8, 1826; Seven-feet Equatorial. 6th and 8th magnitudes. Position = 64° 3' nf | 5 Obs. | Diff. = 1° 22' } Unsteady. Distance = 13".890 | 5 Obs. | Diff. = 0".264 } Stars 10 minutes west of the meridian when observed; night hazy. Sloane-street; February 12, 1826; Seven-feet Equatorial. 7th and 8½ magnitudes. Position = 65° 52' nf | 7 Obs. | Diff. = 2° 47' } Very unsteady. Distance = 14".013 | 5 Obs. | Diff. = 0".360 } Observed when on the meridian; stars tolerably well defined. Sloane-street; February 25, 1826; Seven-feet Equatorial. 6th and 9th magnitudes. Position = 65° 2' nf | 7 Obs. | Diff. = 0° 45' } Unsteady. Distance = 14".352 | 5 Obs. | Diff. = 0".601 } Observed on the meridian. Mean Result. Position 64° 47' nf (24 Obs.); Distance 14".147 (20 Obs.); Epoch 1826.13. Observations with the Five-feet Equatorial assigned to this double star, Position 64° 39' nf; Distance 14".379; Epoch 1823.04, rendering it probable that no important change of position or distance need be expected in this double star. Mr. South's re-examination of seven double stars, made No. IV. R. A. 6ʰ 22ᵐ; Decl. 17° 54' N. 20 Geminorum; H. and S. 72. Double; 8th and 8½ magnitudes. Sloane-street; February 7, 1826; Seven-feet Equatorial. Position = 60° 33' s p | 5 Obs. | Diff. = 0° 47' } Unsteady. Distance = 20''.892 | 5 Obs. | Diff. = 0''.661 } Observed when half an hour east of the meridian; stars neither steady, nor well defined. Sloane-street; February 8, 1826; Seven-feet Equatorial. 6½ and 7th magnitudes. Position = 59° 56' s p | 5 Obs. | Diff. = 0° 40' } Hazy. Distance = 19''.886 | 5 Obs. | Diff. = 0''.673 } Observed when 18 minutes west of the meridian; stars very unsteady. Sloane-street; February 11, 1826; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 61° 17' s p | 5 Obs. | Diff. = 3° 15'. Extremely unsteady. The night is become so unfavourable, that I cannot procure any measures of distance. Sloane-street; February 12, 1826; Seven-feet Equatorial. 8th and 8½ magnitudes. Position = 60° 48' s p | 5 Obs. | Diff. = 0° 54' } Unsteady. Distance = 19''.976 | 5 Obs. | Diff. = 1''.515 } Observed when 10 minutes west of the meridian; stars tolerably well defined. Mean Result. Position 60° 38' s p (20 Obs.); Distance 20''.251 (15 Obs.); Epoch 1826.09. Our former measures of this star gave, Position 61° 3' s p; Distance 19''.454; Epoch 1822.04; the former according sufficiently with the present determination; the latter differing more than might be expected, viz. nearly 8-tenths of a second: whether this arise from a real motion of one of the stars, or from erroneous observation, remains to be ascertained. whilst the former part of the communication was in the press. No. V. R. A. $7^h\ 9^m$; Decl. $50^o\ 27' N.$ 20 Lyncis; H. and S. 79. Double; 8th and $8\frac{1}{4}$ magnitudes. Sloane-street; February 7, 1826; Seven-feet Equatorial. Position = $16^o\ 37'\ sp$ | 5 Obs. | Diff. = $0^o\ 47'$ } Hazy. Distance = $14''.722$ | 5 Obs. | Diff. = $1''.202$ The stars on the meridian at the time of observation; they are pale, ill defined, and unsteady. Sloane-street; February 8, 1826; Seven-feet Equatorial. 8th and $8\frac{1}{4}$ magnitudes. Position = $16^o\ 18'\ sp$ | 5 Obs. | Diff. = $0^o\ 56'$ } Hazy. Distance = $14''.943$ | 5 Obs. | Diff. = $0''.432$ Observed on the meridian; stars ill defined and unsteady. Sloane-street; February 12, 1826; Seven-feet Equatorial. Equal; each $8\frac{1}{2}$ magnitude. Position = $17^o\ 32'\ sp$ or $nf$ | 8 Obs. | Diff. = $1^o\ 56'$ } Unsteady. Distance = $15''.532$ | 5 Obs. | Diff. = $0''.384$ Stars tolerably well defined, and 15 minutes west of the meridian when observed. Mean Result. Position $16^o\ 56'\ sp$ (18 Obs.); Distance $15''.066$ (15 Obs.); Epoch 1826.10. By observations made in Blackman-street the position of this double star was $17^o\ 21'\ sp$; Distance $15''.966$ (erroneously printed $16''.988$); Epoch 1823.33; the former differing very little, but the latter more than might be expected from the present determinations; what is the cause of the discrepancy future observations must decide. Mr. South's re-examination of seven double stars, made No. VI. R. A. 7h 31m; Decl. 5° 43' N. 31 (Bode) Canis Minoris; H. and S. 82. Double; equal; each of the 9th magnitude. Sloane-street; February 12, 1826; Seven-feet Equatorial. Position = 42° 25' sf or np | 7 Obs. | Diff. = 5° 28' } Extremely difficult. Distance = 1''.462 | 5 Obs. | Diff. = 0''.096 } Observed with 413, when on the meridian; stars very unsteady, but at times well defined. Sloane-street; March 15, 1826; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 39° 32' sf | 7 Obs. | Diff. = 2° 42' } Difficult. Distance = 1''.637 | 5 Obs. | Diff. = 0''.288 } Twenty minutes west of the meridian, when observed with 327; stars tolerably steady, but faint; the measures I consider good. Sloane-street; March 17, 1826; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 39° 59' sf | 14 Obs. | Diff. = 3° 3' } Difficult. Distance = 1''.260 | 10 Obs. | Diff. = 0''.192 } Observed with 327, when 40 minutes west of the meridian; stars tolerably steady, and extremely well defined; observations deemed satisfactory. Sloane-street; March 18, 1826; Seven-feet Equatorial. 9th and 9½ magnitudes. Position = 42° 0' sf | 4 Obs. | Diff. = 1° 30' } Difficult. The night is become so cloudy, no more observations can be procured. Mean Result. Position 40° 40' sf (32 Obs.); Distance 1''.405 (20 Obs.); Epoch 1826.18. Our former observations gave 37° 8' sf for the position of this double star, Epoch 1823.13; offering a difference of more than 3½ degrees with the present determination; but the observations are attended with so much difficulty, that no positive conclusion can be formed relative to the rest or motion of this star: the first memoir contained no observations of distance. whilst the former part of the communication was in the press. No. VII. R. A. $9^h\ 19^m$; Decl. $9^\circ\ 50'$ N. ω³ Leonis; I. 26; S. 600. Double; 6th and 9th magnitudes; small, pale blue. Sloane-street; February 12, 1826; Seven-feet Equatorial. Position = $64^\circ\ 14'\ s.f.\ | \ 6\ Obs.\ | \ Diff.\ =\ 4^\circ\ 42'$. Excessively difficult. The small star only visible by glimpses; observations made on the meridian, with 787; the extreme unsteadiness of the stars renders it impossible to procure any measures of distance, and those of position must be received with caution. The unfavourableness of the weather has not allowed me to procure other measures of this difficult star. Sloane-street, March 18, 1826. The position April 4, 1783, was measured with a 20-feet reflector, 12 inches aperture, and found to be $20^\circ\ 54'\ s.f.$ The change is very great, no less than $43^\circ\ 20'$ in 42.8 years, or almost precisely a degree per annum. There can be little doubt, therefore, that this very curious double star is entitled to a place among the revolving stars or Binary systems. The uncertainty of the present observations, arising from the difficulty of the star, and the unfavourable weather, might render us cautious in admitting this conclusion; but a series of well-agreeing measures by Mr. Struve, on four nights, from Feb. 25, to April 4, 1825, which give a mean result $63^\circ.7\ s.f.$ sufficiently establish the fact. These interesting observations are contained in a letter from Mr. Struve, dated April 21, 1825. (H.) JAMES SOUTH. 132 Sloane-street, April 7th, 1826. A SYNOPTICAL VIEW of the Results afforded by the Observations detailed in the present, and preceding communications. | Vol. | Part. | Pages | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position | Quadrant. | Distance. | Remarks | |------|-------|-------|------------------|---------------------|------|-------|----------|-----------|-----------|---------| | 1826 | 1 | 6 | BODE Androm. | S...381 | 0 | 45 | 23N | 4 | 39 | nf | 5.009 | Unchanged. | | 1824 | 3 | 398 | BODE Ceti | H&S 361 | 0 | 2 | 4S | 18 | 45 | np | 9.000 | Distance estimated. | | 1826 | 1 | 7 | 1789; 214 | S...382 | 0 | 61 | 49N | 85 | 50 | sf | 18.187 | Unchanged. | | 1824 | 3 | 24 | Piscium | H&S..1 | 0 | 6 | 749N | 60 | 46 | sf | 11.168 | Unchanged. | | 1824 | 3 | 25 | Piscium | H&S..2 | 0 | 8 | 751N | 32 | 9 | sp | 4.967 | Unchanged. | | 1826 | 1 | 7 | Nova | S....383 | 0 | 9 | 153N | 39 | 44 | sp | 12.100 | Increase of Dist. = 15" nearly. | | 1826 | 1 | 8 | V. 85 | S....384 | 0 | 10 | 20N | 76 | 48 | nf | 45.744 | Changed in Position. | | 1826 | 1 | 9 | Nova | S....385 | 0 | 16 | 31N | 81 | 25 | sf | 5.636 | Changed in Position. | | 1824 | 3 | 26 | Piscium | H&S..3 | 0 | 23 | 57N | 7 | 11 | nf | 25.866 | Changed in Position. | | 1826 | 1 | 9 | Nova | S....386 | 0 | 23 | 273N | 74 | 34 | sp, nf | 42.281 | Changed in Position. | | 1826 | 1 | 10 | H. C. 478 | S....387 | 0 | 26 | 175N | 38 | 1 | sp, nf | 42.510 | Unchanged. | | 1824 | 3 | 27 | Androm. | H&S..4 | 0 | 27 | 43N | 85 | 26 | sf | 35.951 | Unchanged. | | 1826 | 1 | 10 | H. C. 307 | S....388 | 0 | 27 | 29N | 56 | 18 | nf | 6.554 | Unchanged in Angle; Dist. perhaps incr. | | 1824 | 3 | 28 | Cassiope | H&S..5 | 0 | 30 | 553N | 7 | 52 | np | 5.960 | Unchanged: pale, ill defined stars. | | 1824 | 3 | 29 | BODE Androm. | H&S..6 | 0 | 37 | 298N | 34 | 0 | np | 46.64 | Unchanged. | | 1824 | 3 | 30 | V. 82 | H&S..7 | 0 | 37 | 50N | 11 | 29 | nf | 47.136 | Change 3° 41' in Pos. and — 3°.706 in Dist. Binary. | | 1824 | 3 | 30 | Cassiope | H&S..8 | 0 | 38 | 565N | 7 | 56 | nf | 8.289 | Binary. + 0°.5133 = mean ann. mot. Epoch 1825.78. | | 1826 | 1 | 313 | Re-exam. | S.Re-exam. | 0 | | | | | nf | 9.904 | A slow change probably in Angle. | | 1826 | 1 | 11 | BODE Cassiope | S....389 | 0 | 38 | 27N | 57 | 35 | sf | 2.569 | Binary? — 0°.117 per annum. | | 1824 | 3 | 32 | Piscium | H&S..9 | 0 | 40 | 43N | 25 | 48 | np, sf | 5.960 | Unchanged. | | 1824 | 3 | 33 | Nova | H&S..10 | 0 | 42 | 571N | 55 | 12 | sp | 3.151 | Unchanged. | | 1826 | 1 | 12 | H. C. 249 | S....390 | 0 | 49 | 1638N | 57 | 7 | sp | 7.781 | Unchanged. | | 1824 | 3 | 34 | BODE Androm. | H&S..11 | 0 | 50 | 444N | 78 | 57 | sp | 7.520 | Unchanged. | | 1826 | 1 | 12 | P. O. 251 | S....391 | 0 | 50 | 11S | 26 | 27 | np | 18.866 | Unchanged. | | 1824 | 3 | 34 | Ceti | H&S..12 | 0 | 54 | 24N | 14 | 39 | sp | 15.756 | Unchanged. | | 1824 | 3 | 35 | Fiscium | H&S..13 | 0 | 56 | 357N | 7 | 20 | nf | 32.069 | Unchanged. | | 1824 | 3 | 36 | Piscium | H&S..14 | 0 | 56 | 2030N | 71 | 2 | sf | 30.340 | Position unchanged. | | 1824 | 3 | 13 | III. 73 | S....392 | 0 | 56 | 25S | 82 | 42 | sf | 12.893 | Pos. changed 8° 6'; Dist. diminished 2". | | 1826 | 1 | 14 | Piscium | S....393 | 0 | 56 | 3113N | 21 | 8 | np | 90± | Change of 6° in Pos.; but identity of the star questionable. | | 1824 | 3 | 37 | Polaris | H&S..15 | 0 | 58 | 822N | 61 | 11 | sp | 18.701 | Unchanged. | | 1826 | 1 | 15 | BODE Ceti | S....394 | 0 | 58 | 241S | 57 | 19 | np | 4.144 | Unchanged. | | 1826 | 1 | 15 | IV. 120 | S....395 | 1 | 3 | 7N | 21 | 43 | sp | 19.373 | Unchanged. | | 1824 | 3 | 41 | Piscium | H&S..16 | 1 | 4 | 37N | 26 | 33 | nf | 24.648 | Unchanged. | | 1824 | 3 | 42 | Ceti | H&S..17 | 1 | 5 | 45S | 62 | 27 | np | 50.780 | Pos. unchanged; Dist. much increased. | | 1826 | 1 | 16 | IV. 77 | S....396 | 1 | 5 | 33S | 67 | 34 | np | 19.891 | Pos. changed 4°; Dist. unchanged. | | 1826 | 1 | 16 | BODE Cassiope | S....397 | 1 | 9 | 6343N | 82 | 53 | np | 50.357 | Unchanged. | | 1824 | 3 | 42 | Cassiope | H&S..18 | 1 | 13 | 11N | 11 | 19 | sf | 33.347 | Unchanged. | | 1826 | 1 | 17 | Nova | S....398 | 1 | 19 | 73N | 8 | 17 | sf | 9.752 | Unchanged. | | 1824 | 3 | 43 | Piscium | H&S..19 | 1 | 25 | 1138N | 9 | 35 | nf | 16.018 | Unchanged. | | 1826 | 1 | 17 | Ceti | S....399 | 1 | 33 | 1212S | 0 | 4 | nf | 4.193 | Unchanged. | | 1826 | 1 | 18 | H. C. 247 | S....400 | 1 | 34 | 759S | 75 | 2 | sp | 36.645 | Unchanged. | MDCCCXXVI. | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|-----------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 18 | 304 Bode Piscium | S...401 | h. m. | 1 40 | 21 23 N | 82 26 | sf | 1 3:378 | Pos. changed 5°; Dist. unchanged. Probably unchanged. | | 1826 | 1 | 19 | 241 Bode Androm. | S...402 | i | 42 | 36 26 N | 71 42 | sf | 4:258 | Unchanged. | | 1824 | 3 | 44 | γ Arietis 1 and 2 | H & S.20 | i | 44 | 18 25 N | 88 41 | np, sf | 9:109 | Unchanged. | | 1824 | 3 | 45 | ... and 3 | | | | | | nf | 3 48:264 | | | 1826 | 1 | 20 | Nova | S...403 | i | 45 | 27 56 N | 75 52 | sf | 5:073 | | | 1824 | 3 | 46 | 47 Cassiopeia | H & S.22 | i | 47 | 76 25 N | 77 41 | sp | 1 33:594 | | | 1826 | 1 | 20 | IV. 104 | S...404 | i | 47 | 40 30 N | 22 35 | nf | 20:590 | Unchanged. | | 1824 | 3 | 46 | λ Arietis | H & S.23 | i | 48 | 22 43 N | 44 19 | nf | 37:889 | Unchanged. | | 1824 | 3 | 47 | 292 Bone Ceti | H & S.24 | i | 51 | 23 48 S | 36 30 | np | 9:080 | Much changed if the same star. | | 1824 | 3 | 47 | α Piscium | H & S.25 | i | 53 | 1 53 N | 65 33 | np | 5:428 | Unchanged. | | 1824 | 3 | 49 | γ Androm | H & S.26 | i | 53 | 41 28 N | 25 14 | nf | 10:099 | Unchanged. | | 1826 | 1 | 21 | 1789; 223 | S...405 | i | 53 | 78 50 N | 4 12 | np | 55:303 | Pos. changed 3°. | | 1826 | 1 | 22 | 14 Arietis | S...406 | i | 59 | 25 5 N | 7 58 | np | 1 45:258 | Pos. unchanged. | | 1824 | 3 | 50 | 59 Androm | H & S.27 | i | 0 | 38 11 N | 56 5 | nf | 17:157 | | | 1826 | 1 | 23 | H. C. 392 A and B | S...407 | i | 0 | 1 18 S | 19 31 | np | 4:956 | | | 1826 | 1 | 23 | ... A and C | | | | | | sf | 4 4:079 | | | 1826 | 1 | 24 | III. 68 | S...408 | i | 0 | 19 28 N | 58 49 | sf | 8:952 | Pos. perhaps changed 3°. Dist. unaltered. | | 1824 | 3 | 52 | Trianguli | H & S.28 | i | 2 | 29 27 N | 12 2 | nf | 3:881 | Pos. changed 7° 39'. | | 1824 | 3 | 53 | 66 Ceti | H & S.29 | i | 3 | 17 S | 43 55 | np | 16:173 | Distance unchanged. | | 1824 | 3 | 54 | H. C. 124 | H & S.30 | i | 4 | 29 34 N | 22 50 | sp, nf | 6:067 | No measures given by Sir W. Herschel. | | 1826 | 1 | 24 | χ Persei | S...409 | i | 5 | 56 41 N | 46 30 | sf | 2 4:533 | | | 1826 | 1 | 25 | H. C. 140 | S...410 | i | 7 | 39 27 N | 20 56 | np | 11:100 | | | 1824 | 3 | 54 | 10 a Trianguli | H & S.31 | i | 8 | 27 49 N | 61 4 | sp | 14:347 | Changed in Pos. | | 1824 | 3 | 399 | o Ceti | H & S.362 | i | 10 | 3 48 S | 1 25 | nf | | As III. 4; doubtful if changed: of it as close double, I have no satisfactory measures. | | 1826 | 1 | 25 | Cassiopea A and C | S...411 | i | 14 | 60 35 N | 16 52 | sf | 7:909 | Remarkably unchanged. | | 1826 | 1 | 25 | A and B | | | | | | | 6:875 | | | 1826 | 1 | 27 | 378 Bode Ceti | S...412 | i | 17 | 16 8 S | 22 24 | np | 11:704 | | | 1826 | 1 | 28 | H. C. 48 | S...413 | i | 22 | 0 19 N | 53 23 | sp | 14:332 | | | 1826 | 1 | 28 | Nova | S...414 | i | 22 | 17 37 N | 89 11 | nf | 8:446 | Dist. increased. | | 1824 | 3 | 55 | 30 Arietis | H & S.32 | i | 26 | 23 52 N | 2 26 | np | 38:445 | Pos. unchanged. | | 1824 | 3 | 56 | 33 Arietis | H & S.33 | i | 30 | 26 17 N | 88 20 | nf | 29:185 | | | 1826 | 1 | 29 | Nova; A and B | S...415 | i | 31 | 18 5 N | 28 48 | sf | 2:875 | | | 1826 | 1 | 29 | ... A and C | | | | | | sp | 6:256 | | | 1826 | 1 | 29 | IV. 64; A and B | S...416 | i | 31 | 39 31 N | 60 30 | sp | 22:883 | | | 1826 | 1 | 29 | ... A and C | | | | | | sp | 26:042 | | | 1826 | 1 | 30 | H. C. 371 | S...417 | i | 32 | 55 45 N | 5 50 | np | 16:538 | | | 1826 | 1 | 31 | Nova | S...418 | i | 34 | 28 41 N | 24 17 | np | 2:903 | | | 1824 | 3 | 57 | π Persei 1 and 2 | H & S.34 | i | 38 | 55 8 N | 29 53 | np | 28:959 | | | 1824 | 3 | 57 | ... 1 and 3 | | | | | | 48 | 3 57:175 | | | 1824 | 3 | 59 | π Arietis | H & S.35 | i | 39 | 16 42 N | 32 29 | sf | 3:076 | | | 1824 | 3 | 61 | 41 Arietis | H & S.36 | i | 39 | 26 31 N | 43 24 | sp | 2 7:557 | Unchanged in Distance. | | 1826 | 1 | 32 | 85 Bode Persei | S...419 | i | 40 | 52 15 N | 21 1 | np | 1:321 | Unchanged since 1804. | | 1826 | 1 | 33 | 20 Persei | S...420 | i | 42 | 37 36 N | 33 50 | sp | 13:886 | Probably unchanged. | | 1826 | 1 | 33 | H. C. 121 | S...421 | i | 46 | 43 47 N | 26 46 | np | 28:411 | | | 1826 | 1 | 34 | P. II. 220 | S...422 | i | 48 | 51 38 N | 4 40 | nf | 12:960 | | | 1826 | 1 | 34 | 41 Bode Ap. Chem. | S...423 | i | 49 | 25 42 S | 50 52 | sp | 27:754 | | | 1824 | 3 | 61 | 499 Bode Ceti | H & S.37 | i | 59 | 6 46 N | 73 25 | sf | 1 21:283 | Pos. slightly changed; Dist. increased 1".7. | | 1826 | 1 | 35 | II. 76 | S...424 | i | 10 | 19 8 N | 18 56 | sp | 7:501 | Unchanged. | | 1826 | 1 | 36 | Nova | S...425 | i | 12 | 29 11 N | 12 18 | sf, np | 10:345 | | | 1826 | 1 | 36 | III. 77 | S...426 | i | 18 | 19 52 N | 73 7 | sf | 7:798 | | | 1826 | 1 | 37 | STRUVE, 94 | S...427 | i | 21 | 27 6 N | 37 7 | sp | 43:575 | | | 1826 | 1 | 38 | STRUVE, 93 | S...428 | i | 31 | 26 57 N | 0 24 | np | 11:674 | Distance only estimated. | | 1826 | 1 | 38 | H. C. 31 | S...429 | i | 23 | 22 45 N | 55 26 | nf, sp | 11:640 | Probably unchanged. | | 1824 | 3 | 401 | 7 Tauri | H & S.363 | i | 24 | 23 51 N | 33 54 | nf | 21:055 | | | 1826 | 1 | 39 | H. C. 121 | S...430 | i | 26 | 44 12 N | 4 39 | sf | 41:511 | | | 1826 | 1 | 39 | III. 45 | S...431 | i | 28 | 0 3 N | 44 42 | sp | 5:812 | | | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|------------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 40 | II. 52 | S...432 | 3° 29' | 33° 32' N | 13° 44' sf | np | 3° 450" | Doubtful if changed or not. | | | | | Nova; or 145.23 | S...433 | 3° 30' | 28° 11' N | 65° 3' sp | ... | 7° 326" | | | | | | H. C. 122 | S...434 | 3° 32' | 37° 48' N | 1° 33' nf | ... | 28° 428" | | | | | | H. C. 137 | S...435 | 3° 35' | 40° 55' N | 44° 18' nf | ... | 9° 867" | | | | | | H. C. 371 | S...436 | 3° 35' | 56° 31' N | 16° 2' nf | ... | 57° 706" | | | | | 43 | STRUVE, 105 | S...437 | 3° 36' | 23° 27' N | 29° 43' sf | ... | 34° 566" | | | | | | Alcyone A and B | S...438 | 3° 37' | 23° 32' N | 18° 42' np | ... | 5° 607" | | | | | | B and C | | | 74° 8' np | ... | ... | 25° 640" | | | | | | B and D | | | 33° 54' np | ... | ... | 14° 686" | | | | | 44 | 30 Tauri | S...439 | 3° 38' | 10° 35' N | 31° 14' nf | ... | 9° 867" | Sir W. H.'s observations very dubious. | | | | | Persei | S...440 | 3° 43' | 50° 10' N | 59° 39' nf | ... | 16° 934" | | | | | | Persei A and B | S...441 | 3° 43' | 31° 20' N | 65° 2' sp | ... | 13° 296" | | | | | 48 | A and C | | | 71° 14' sp | ... | ... | 24° 379" | A C changed in Pos. by proper motion. | | | | | A and D | | | 85° 27' sp | ... | ... | 5° 901" | | | | | 62 | 32 Eridani | H & S...38 | 3° 45' | 3° 30' S | 79° 1' np | ... | 8° 081" | Sensibly changed. | | | | | Persei i and 2 | H & S...39 | 3° 46' | 39° 29' S | 79° 38' nf | ... | 8° 587" | Pos. unchanged; Dist. increased sensibly. | | | | | i and 3 | | | 54° 0' sf | ... | ... | 7° 208" | | | | | 49 | P. III. 213 | S...442 | 3° 50' | 22° 41' N | 37° 41' sf | ... | 44° 212" | | | | | 50 | Nova A and B | S...443 | 3° 57' | 13° 54' N | 23° 53' sf | ... | 1° 909" | | | | | | A and C | | | 31° 11' np | ... | ... | 6° 301" | | | | | 51 | Nova | S...444 | 3° 58' | 22° 38' N | 84° 8' sp | ... | | | | | | 401 | Persei | H & S...364 | 4° 2' | 47° 57' N | 38° 18' sp | ... | 31° 559" | | | | | 52 | STRUVE, 117; A and B | S...445 | 4° 7' | 49° 50' N | 56° 33' np | ... | 15° 220" | | | | | | A and C | | | 10° 7' sp | ... | ... | 28° 720" | | | | | 53 | 40 Eridani | S...446 | 4° 7' | 7° 55' S | 17° 58' sf | ... | 24° 726" | Unchanged. | | | | 64 | 2 Tauri | H & S...40 | 4° 9' | 26° 54' N | 29° 33' sp | ... | 56° 841" | Unchanged. | | | | 65 | 2 Tauri | H & S...41 | 4° 12' | 25° 11' N | 66° 4' nf | ... | 19° 962" | | | | | 66 | 62 Tauri | H & S...42 | 4° 13' | 23° 52' N | 19° 37' np | ... | 29° 052" | Unchanged. | | | | 54 | IV. 72 | S...447 | 4° 13' | 33° 53' N | 29° 49' nf | ... | 19° 865" | Pos. unchanged; Dist. increased 3". | | | | 67 | Camelop | H & S...43 | 4° 18' | 53° 31' N | 36° 26' np | ... | 10° 450" | Epoch 1826.10. | | | | 385 | | S.Re-exam. | | 37° 10' np | ... | ... | 10° 287" | | | | | 54 | H. C. 136 | S...448 | 4° 18' | 29° 57' N | 55° 43' nf | ... | 15° 254" | Pos. changed 5° 34"; Dist. unchanged. | | | | 55 | IV. 75 | S...449 | 4° 18' | 9° 41' N | 67° 30' sf | ... | 22° 900" | | | | | 56 | 145. 24; or Nova.| S...450 | 4° 19' | 39° 35' N | 25° 2' sf | ... | 9° 578" | Distance increased + 13".7. | | | | 67 | 57 m. Persei | H & S...44 | 4° 21' | 42° 39' N | 71° 8' sp | ... | 50° 193" | Epoch 1826.10. | | | | 386 | | S.Re-exam. | | 70° 29' sp | ... | ... | 50° 700" | | | | | 56 | Nova | S...451 | 4° 23' | 47° 3' N | 74° 18' sp | ... | 1° 454" | | | | | 402 | III. 65 | H & S...365 | 4° 24' | 40° 43' N | 59° 0' nf | ... | 12° 408" | | | | | 68 | 88 d. Tauri | H & S...45 | 4° 26' | 9° 47' N | 28° 59' np | ... | 9° 455" | Distance unchanged. | | | | 57 | Aldebaran | S...452 | 4° 26' | 16° 8' N | 53° 49' nf | ... | 1° 30.000" | Unchanged. | | | | 58 | III. 100 | S...453 | 4° 27' | 10° 5' S | 11° 22' sp | ... | 13° 634" | Pos. changed 5°; Dist. increased 1".7. | | | | 58 | H. C. 204 | S...454 | 4° 28' | 26° 35' N | 60° 53' sp | ... | 3° 919" | | | | | 59 | 7 Tauri | S...455 | 4° 31' | 22° 36' N | 58° 28' sp | ... | 2° 817" | Distance unchanged. | | | | 59 | II. 81 A and B | S...456 | 4° 32' | 0° 35' N | 56° 24' np | ... | 6° 455" | | | | | 59 | A and C | | | 6° 0' sp | ... | ... | 44° 412" | | | | | 69 | 55 Eridani | H & S...46 | 4° 35' | 9° 9' S | 48° 20' np | ... | 10° 510" | Unchanged? | | | | 60 | H. C. 251 | S...457 | 4° 44' | 1° 34' S | 83° 41' np | ... | 41° 490" | | | | | 61 | H. C. 42 | S...458 | 4° 44' | 7° 6' N | 73° 8' sp | ... | 16° 933" | | | | | 70 | Auriga | H & S...47 | 4° 47' | 37° 36' N | 82° 1' np | ... | 7° 892" | | | | | 61 | 10 Camelop | S...459 | 4° 47' | 6° 11' N | 62° 18' sp | ... | 19° 859" | | | | | 71 | 62 Eridani | H & S...48 | 4° 48' | 5° 28' S | 15° 16' nf | ... | 5° 865" | Pos. unchanged. | | | | 62 | I. 68 | S...460 | 4° 49' | 1° 23' N | 83° 49' sf | ... | 2° 505" | Pos. changed 11°; probably a Binary system. Ann. mot. = -0°.269. | | | | 62 | STRUVE, 146 | S...461 | 4° 50' | 26° 25' N | 68° 36' sf | ... | 18° 561" | | | | | 63 | H. C. 465 | S...462 | 4° 51' | 3° 22' N | 10° 26' sp | ... | 21° 808" | | | | | 64 | STRUVE, 149 | S...463 | 4° 52' | 11° 7' N | 60° 25' nf | ... | 33° 604" | No measures given by Sir W. Herschel. | | Vol. | Part. | Page. | Star's Name, &c. | Observer and Number. | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|-------|------------------|----------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 64 | BODE Camel | S...464 | 4 53 | 79°0N| 76°23' | np | 37.012 | | | | | 65 | P. IV. 278 | S...465 | 4 53 | 1°20N| 41°42' | nf | 14.435 | | | | | 65 | 105 Tauri | S...466 | 4 57 | 21°27N| 19°3' | sp | 49.990 | Probably unchanged. | | | | 66 | Nova | S...467 | 4 59 | 31°51N| 15°40' | nf | 4.571 | | | | 3 | 72 | BODE Orion. 1 & 2| H & S.49 | 4 49 | 14°15N| 34°36' | np | 38.827 | | | | | | I & 3 | | | | | nf | | | | 1824 | 3 | 73 | IV. 43 | H & S.50 | 5 | 8°53S| 10°6' | nf | 21.763 | Position hardly changed. Epoch 1825.06. | | | | | Re-exam. | S...468 | 5 | 13°47N| 72°37' | sf | 27.183 | | | | | 67 | H. C. 203 | H & S.51 | 5 | 45°48N| 78°2' | np | 34.206 | | | | | 73 | Capella | H & S.52 | 5 | 32°28N| 45°37' | sp | 14.610 | Pos. changed 8°; Dist. unchanged. | | | | 74 | Aurigae | S...469 | 5 | 2°38N | 28°1' | nf | 7.054 | | | | | 67 | 145.21 or Nova? | | | | | | | | | 1826 | 1 | 68 | H. C. 562 | S...470 | 5 | 17°40S| 7°38' | np | 48.304 | Probably unchanged. | | | | 68 | II. 48 | S...471 | 5 | 33°9N | 8°42' | sp | 2.822 | Pos. unchanged; Dist. scarcely changed. Sir W. H. gives no measures of this star. | | | | 75 | Orionis | H & S.53 | 5 | 8°25N | 69°19' | sp | 8.878 | | | | | 69 | Aurigae A and B. | S...472 | 5 | 39°58N| 55°24' | nf | 42.143 | | | | | | A and C. | | | | | nf | 13.941 | | | | | 70 | H.C. 467 | S...473 | 5 | 15°26S| 34°1' | np | 20.844 | | | 1826 | 1 | 70 | H. C. 313 | S...474 | 5 | 10°56S| 2°49' | np | 10.939 | | | | | 71 | BODE Orion. | S...475 | 5 | 8°13S | 86°46' | nf | 35.678 | Pos. unchanged; Distance differs 6'. | | | | 72 | H. C. 562 | S...476 | 5 | 18°43S| 72°41' | nf, sp | 39.713 | | | | | 76 | Orionis | H & S.54 | 5 | 3°21N | 62°40' | nf | 33.043 | Unchanged. | | | | 72 | IV. 101 | S...477 | 5 | 34°43N| 76°14' | np | 31.964 | Position unchanged; Distances not comparable. | | 1826 | 1 | 73 | 111 Tauri | S...478 | 5 | 17°13N| 1°17' | np | 1.763 | No material change. | | | | 73 | Nova A and B. | S...479 | 5 | 1°39N | 51°21' | sp | 46.630 | | | | | | A and C. | | | | | nf | 38.162 | | | | | 74 | I. 52 | S...480 | 5 | 1°45N | 54°45' | np | 2.982 | Position unchanged. | | | | 76 | I. 53 | S...481 | 5 | 2°46N | 40°29' | nf | 3.393 | | | | | 77 | H.C. 563 | S...482 | 5 | 11°28S| 75°54' | sp | 11.392 | | | 1826 | 1 | 77 | Nova | S...483 | 5 | 33°38N| 3°53' | nf | 27.602 | | | | | 77 | 118 Tauri | H & S.55 | 5 | 25°0N | 75°59' | sp | 5.666 | Unchanged. | | | | 78 | Nova | S...484 | 5 | 33°21N| 80°1' | sf | 58.955 | | | | | 78 | IV. 110 | S...485 | 5 | 29°24N| 81°52' | np | 15.446 | Position changed 6° 58'. Binary? mean motion —0°.414. | | | | 78 | Orionis | H & S.56 | 5 | 5°48N | 66°49' | sp | <1.300 | | | 1824 | 3 | 78 | near 33 Orion | H & S.57 | 5 | 3°11N | 62°41' | sf | 24.731 | | | | | 79 | III 93 | H & S.58 | 5 | 16°55N| 52°4' | sf | 9.790 | Pos. unchanged. Epoch 1824-99. | | | | 80 | Orionis 1 and 2. | S.Re-exam. | | | | sf | 10.861 | Unchanged. | | | | | 1 and 3 | H & S.59 | 5 | 3°9N | 63°21' | nf | 2.025 | | | | | 81 | Orionis | H & S.60 | 5 | 0°27S | 55°54' | np | 19.734 | | | | | 82 | Nova | H & S.61 | 5 | 2°39N | 83°9' | nf | 54.875 | | | | | | | | | | | np | 8.912 | | | 1824 | 3 | 82 | Orionis | H & S.62 | 5 | 9°48N | 49°14' | nf | 5.574 | | | | | 79 | Orionis A and B. | S...486 | 5 | 5°32S | 40°48' | np | 13.453 | | | | | | A and C. | | | | | nf | 13.582 | | | | | | A and D. | | | | | np | 16.685 | | | | | | A and E. | | | | | nf | 58.114 | | | | | 83 | I. 70 | S...487 | 5 | 21°53N| 21°39' | sp | 2.970 | | | | | 84 | Nova | S...488 | 5 | 5°34S | 1°46' | sf | 52.418 | | | | | | A of S.486; and A of S.488 | | | | | sf | 14.866 | | | | | 85 | Nova | S...489 | 5 | 6°7S | 49°11' | sp | 37.116 | | | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|------------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 86 | Nova | S...490 | 5 27 | 5 34S | 55 56 | sp | 17.680 | Pos. changed 8° 7'. Distances but little changed. | | | | | Orionis; A and B.| S...491 | 5 27 | 6 2S | 51 58 | sf | 12.785 | Pos. changed only 2° 7'. | | | | | A and C | | 5 27 | | 13 26 | sf | 49.784 | Pos. changed 4° 14'; Dist. diminished 1°.1. | | | | | 26 Auriga | S...492 | 5 27 | 30 22N | 1 38 | sp | 12.327 | Unchanged. | | | | | σ Orionis; A and B.| H & S.63 | 5 30 | 2 43S | 6 41 | nf | 12.912 | Unchanged. | | | | | A and C | | 5 30 | | 28 57 | nf | 42.765 | Unchanged. | | | | | A and D | H & S.64 | 5 30 | | 52 57 | np | 30.805 | Unchanged. | | | | | A and G | H & S.65 | 5 30 | | 33 44 | sf | 10.131 | Unchanged. | | | | | A and H | | 5 30 | | 31 11 | nf | 45.375 | Unchanged. | | | | | D and E | H & S.66 | 5 30 | | 3 39 | sp | 11.136 | Unchanged. | | | | | D and F | | 5 30 | 0 15S | 68 11 | nf | 8.255 | Very little changed. | | | | | Nova | S...493 | 5 30 | | 8 9 | ep | 18.317 | Pos. unchanged. | Sir W. H. gives no measures of this star. Perfectly unaltered. Perfectly unchanged in Pos. Epoch 1826.13. Unchanged. Epoch 1824.12. Epoch 1824.12. Epoch 1826.09. | Vol. | Part | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|------|------|------------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | I | 106 | III. 75 .......... | S. . . . . . . . . . | 6 22 | 5 33 N | 15 25 np | . . . . . . | 10.774 | | | | | 107 | 142.2 or Nova? | S. . . . . . . . . . | 6 22 | 11 22 N | 85 13 nf | . . . . . . | 16.882 | | | | | 107 | STRUVE, 233; A and B | S. . . . . . . . . . | 6 23 | 22 15 N | 27 11 sp | . . . . . . | 53.280 | | | | | 108 | . . . . . . . . . . | . . . . . . . . . . | . . . . | . . . . | . . . . . . | sf | 1 46.511 | | | | | 109 | 145.60; or Nova? | S. . . . . . . . . . | 6 24 | 41 15 N | 16 10 nf | . . . . . . | 25.585 | | | | | 109 | L. 84. | S. . . . . . . . . . | 6 26 | 41 43 N | 4 59 nf | . . . . . . | 1.664 | Pos. changed 9°; probably a Binary system. | | 1824 | 3 | 404 | 15 BODE Telesc. | H&S 367 | 6 26 | 41 40 N | 43 0 sf | . . . . . . | 28.064 | | | | | 110 | Nova | S. . . . . . . . . . | 6 27 | 23 19 N | 67 48 sf | . . . . . . | 15.905 | | | | | 111 | Nova | S. . . . . . . . . . | 6 28 | 31 44 N | 64 4 nf | . . . . . . | 1 20.691 | | | | | 111 | Novas; A and B | S. . . . . . . . . . | 6 28 | 12 23 N | 72 56 sf | . . . . . . | 1 31.905 | | | | | | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | sf | 3 7.913 | | | | | | | H&S 73 | 6 29 | 18 31 S | 10 8 sp | . . . . . . | 17.240 | Changed in pos. ? in Dist. | | | | 94 | Canis Maj. | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | | | | 1826 | I | 112 | STRUVE, 238 | S. . . . . . . . . . | 6 29 | 59 37 N | 46 48 sf | . . . . . . | 4.063 | Binary; -0°.5574 per ann. | | | | 95 | 12 Lyncis A and B.| H&S 74 | 6 30 | 59 37 N | 68 39 sf | . . . . . . | 2.593 | Pos. changed +0°.009 per ann. | | | | | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | np | 9.849 | Epoch 1825.25. | | | | 318 | A and B | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 2.520 | Epoch 1825.25. | | | | | Re-exam. | S. Re-exam. | . . . . | . . . . | . . . . . . | np | 9.184 | Pos. unchanged. | | | | | | S. Re-exam. | . . . . | . . . . | . . . . . . | . . . . . . | 4.519 | | | | | 113 | II. 72 | S. . . . . . . . . . | 6 33 | 55 54 N | 10 57 nf | . . . . . . | 12.607 | | | | | 113 | H.C. 267 | S. . . . . . . . . . | 6 33 | 7 49 S | 79 49 sp | . . . . . . | 1 51.577 | | | | | 114 | s Geminior. | S. . . . . . . . . . | 6 33 | 25 18 N | 3 42 sf | . . . . . . | | Distance unaltered. | | 1824 | 3 | 97 | 56 Aurigae | H&S 75 | 6 34 | 43 45 N | 72 52 nf | . . . . . . | 55.386 | Pos. unchanged. | | | | 114 | Nova | S. . . . . . . . . . | 6 36 | 22 15 S | 53 13 sf | . . . . . . | 18.252 | | | | | 115 | H.C. 365 | S. . . . . . . . . . | 6 40 | 75 30 N | 65 47 nf | . . . . . . | 12.538 | | | | | 116 | 59 Aurigae | S. . . . . . . . . . | 6 41 | 39 5 N | 48 19 sp | . . . . . . | 21.601 | No material change. | | | | 116 | Nova | S. . . . . . . . . . | 6 42 | 23 55 S | 11 51 np | . . . . . . | 30.305 | | | 1826 | I | 117 | Nova | S. . . . . . . . . . | 6 42 | 23 55 S | 86 44 nf | . . . . . . | 27.806 | | | | | 117 | STRUVE, 250 | S. . . . . . . . . . | 6 43 | 46 47 N | 60 36 sp | . . . . . . | 8.229 | | | | | 98 | 38 Geminior. | H&S 76 | 6 44 | 13 24 N | 84 24 sf | . . . . . . | 5.328 | | | | | 118 | n Canis Maj. A and B | S. . . . . . . . . . | 6 47 | 20 11 S | 57 57 sf | . . . . . . | 45.033 | | | | | | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 52.957 | | | | | | | S. . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 8.360 | | | | | | | S. . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 24.997 | | | | | 119 | Nova; A and B | S. . . . . . . . . . | 6 50 | 22 24 S | 46 52 nf | . . . . . . | | | | | | 120 | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | | | | 1826 | I | 120 | I. 69 | S. . . . . . . . . . | 6 51 | 53 1 N | 66 54 sf | . . . . . . | 3.891 | Pos. changed 10°30'; prob', a Bin. system. | | | | 99 | z Geminior. | H&S 77 | 6 53 | 20 50 N | 85 27 np | . . . . . . | 1 31.032 | Pos. slightly changed. | | | | 121 | Nova | S. . . . . . . . . . | 6 54 | 22 25 S | 1 25 sp | . . . . . . | 1 31.432 | | | | | 121 | Nova | S. . . . . . . . . . | 7 2 | 22 35 N | 49 51 sp | . . . . . . | 9.427 | | | | | 122 | 1790; 387 | S. . . . . . . . . . | 7 5 | 73 23 N | 8 32 np | . . . . . . | 31.085 | | | 1824 | 3 | 100 | 19 Lyncis A and B.| H&S 78 | 7 8 | 55 37 N | 43 5 sp | . . . . . . | 14.544 | Scarcely changed. | | | | 101 | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 33.357 | | | | | 101 | 20 Lyncis. | H&S 79 | 7 9 | 50 27 N | 17 21 sp | . . . . . . | 15.966 | Epoch 1826.10. | | | | 139 | S. Re-exam. | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 15.666 | Probably unchanged. | | | | 102 | 3 Geminior. | H&S 80 | 7 9 | 22 18 N | 74 35 sp | . . . . . . | 7.248 | | | | | 122 | Nova; A and B | S. . . . . . . . . . | 7 10 | 31 48 N | 89 22 np | . . . . . . | 1 19.000 | | | | | | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 2 22.637 | | | | | 123 | III. 48 | S. . . . . . . . . . | 7 15 | 20 48 N | 50 44 nf | . . . . . . | 6.516 | | | 1826 | I | 124 | V. 66 | S. . . . . . . . . . | 7 17 | 22 30 N | 5 52 np | . . . . . . | 35.619 | Not materially changed. | | | | 404 | 62 Geminior. | H&S 368 | 7 17 | 21 49 N | 50 16 np | . . . . . . | | | | | | 124 | H.C. 314; A and B.| S. . . . . . . . . . | 7 20 | 14 13 N | 39 41 nf | . . . . . . | 7.999 | | | | | | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 51.027 | | | | | 125 | | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 40.041 | | | | | 125 | H.C. 281 | S. . . . . . . . . . | 7 20 | 18 8 S | 26 12 sp | . . . . . . | 4.599 | | | | | 126 | H.C. 261 | S. . . . . . . . . . | 7 21 | 5 37 N | 24 46 sp | . . . . . . | | | | 1824 | 3 | 103 | z Geminior. A and B | H&S 81 | 7 23 | 32 17 N | 3 57 sp | . . . . . . | 5.355 | Binary; mean mot. = -0°.965. | | | | 106 | A and C | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 1 10.180 | Epoch 1825.26. | | | | 107 | A and D | . . . . . . . . . . | . . . . | . . . . | . . . . . . | . . . . . . | 3 17.114 | No material change. | | | | 126 | A and B | S. Re-exam. | . . . . | . . . . | . . . . . . | . . . . . . | 4.767 | | | | | 127 | 145.19; or Nova? | S. . . . . . . . . . | 7 27 | 23 4 S | 14 53 np | . . . . . . | 9.007 | | | | | 127 | 34 BODE Off. Typ. | S. . . . . . . . . . | 7 28 | 14 6 S | 33 20 np | . . . . . . | 7.437 | | | | | 127 | Nova | S. . . . . . . . . . | 7 28 | 14 7 S | 54 41 nf | . . . . . . | 20.276 | | | | | 128 | Nova | S. . . . . . . . . . | 7 28 | 14 4 S | 42 17 sp | . . . . . . | 34.731 | | | Vol. | Part. | Page. | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks | |------|-------|-------|------------------|---------------------|------|-------|-----------|----------|-----------|---------| | 1826 | 1 | 129 | P. VII. 159 | S. . . . 556 | 7 | 28 | 65 34 N | nf | 16.175 | Binary? Pos. changed — 10°. Epoch 1826.18. | | | | | Nova | S. . . . 557 | 7 | 29 | 14 3 S | np | 6.356 | No material change in Pos. | | 1824 | 3 | 107 | Bode Can. Min. | H & S. 82 | 7 | 31 | 5 43 N | sf | 1.405 | Pos. unchanged. Identity with Sir W. H.'s star dubious. Unchanged. | | 1826 | 1 | 390 | | S. Re-exam. | | | | sf | 19.886 | | | 1826 | 1 | 130 | H. C. 275 | S. . . . 558 | 7 | 33 | 3 6 S | 54 | 18.467 | | | | | | Pollux; A and B | S. . . . 559 | 7 | 34 | 28 28 N| 20 | 12.312± | | | | | | A and C | | | | | nf | | | | 1824 | 3 | 109 | π Geminor | H & S. 83 | 7 | 36 | 33 51 N| np | 33.984 | Dist. increased greatly. (Single measures.) | | | | | | H & S. 84 | 7 | 37 | 14 15 S| 69 | 19.666 | Unchanged. | | 1826 | 1 | 132 | V. 67 | S. . . . 560 | 7 | 37 | 29 13 N| 89 | 30.598 | | | | | | | H & S. 85 | 7 | 38 | 18 47 N| 0 | 6.384 | | | 1826 | 1 | 132 | Nova | S. . . . 561 | 7 | 41 | 25 16 S| 88 | 50.898 | | | 1824 | 3 | 112 | 2 Bode Ursæ Maj. | H & S. 86 | 7 | 46 | 63 34 N| nf | 46.647 | | | | | | | H & S. 87 | 7 | 49 | 2 47 N | nf | 16.021 | | | | | | | | | | | sf | 52.168 | | | 1826 | 1 | 133 | Nova | S. . . . 562 | 7 | 49 | 79 59 N| 80 | 21.440 | | | | | | | H & S. 88 | 7 | 58 | 28 O | 84 | 4.498 | | | 1826 | 1 | 321 | | S. Re-exam. | | | | 15 | 4.676 | | | | | | | H & S. 89 | 8 | 0 | 2 28 S | 27 | 6.503 | | | | | | | | | | | 16 | 18± | | | 1824 | 3 | 114 | 29 Monocer. 1 and 2 | | | | | | | | | | | | | | | | | | | | | 1826 | 1 | 133 | Nova | S. . . . 563 | 8 | 0 | 19 18 S| 34 | 13.702 | Binary? — 0°.5813 per ann. Epoch 1825.27. perhaps a Ternary system. | | | | | | H & S. 90 | 8 | 2 | 18 11 N| 68 | 6.241 | | | | | | | S. Re-exam. | | | | 10 | 1.086 | | | | | | | | | | | 55 | 5.436 | | | 1826 | 1 | 323 | | | | | | | | | | | | | | | | | | | | | | 1826 | 1 | 134 | H. C. 263 | S. . . . 564 | 8 | 2 | 1 48 N | 68 | 33.621 | Binary? — 0°.514 per ann. and Dist. incr. 2°. Epoch 1825.26. | | | | | | H & S. 91 | 8 | 3 | 12 24 S| 14 | 10.175 | Unchanged. | | 1826 | 1 | 134 | H. C. 54 | S. . . . 565 | 8 | 12 | 42 34 N| 74 | 13.040 | | | 1826 | 1 | 135 | φ¹ Cancri | S. . . . 566 | 8 | 15 | 28 26 N| nf | 0.945 | | | | | | | S. . . . 567 | 8 | 17 | 20 43 N| sp | 37.782 | | | 1826 | 1 | 136 | Nova | S. . . . 568 | 8 | 16 | 25 7 N | nf | 6.046 | | | | | | | H & S. 92 | 8 | 16 | 52 13 N| nf | 6.742 | | | 1826 | 1 | 137 | Nova | S. . . . 569 | 8 | 23 | 25 25 S| np | 39.723± | | | | | | | H & S. 94 | 8 | 26 | 7 15 N | nf | 10.844 | | | | | | | S. . . . 570 | 8 | 29 | 20 15 N| nf | 57.517 | | | 1826 | 1 | 138 | Nova; A and B | S. . . . 571 | 8 | 30 | 20 8 N | np | 57.987 | | | | | | | | | | | sf | 45.037 | | | 1826 | 1 | 139 | Nova; A and B | S. . . . 572 | 8 | 30 | 20 16 N| nf | 32.257 | | | | | | | | | | | | 15.940 | | | 1826 | 1 | 140 | Nova | S. . . . 573 | 8 | 30 | 20 15 N| nf | 20.602 | | | | | | | S. . . . 574 | 8 | 30 | 20 8 N | sp | 12.803 | | | 1826 | 1 | 141 | Nova | S. . . . 575 | 8 | 31 | 6 25 N | nf | 27.383 | | | | | | | S. . . . 576 | 8 | 31 | 49 30 N| np | 10.316 | | | 1826 | 1 | 142 | IV. 54 | S. . . . 577 | 8 | 33 | 11 33 S| np | 5.589 | | | 1826 | 1 | 143 | P. VIII. 131 | S. . . . 578 | 8 | 33 | 11 16 S| np | 30.808 | | | | | | | S. . . . 579 | 8 | 35 | 6 35 S | np | 17.918 | | | 1826 | 1 | 144 | Nova; A and B | H & S. 95 | 8 | 36 | 29 25 N| np | 29.387 | | | | | | | S. . . . 580 | 8 | 36 | 1 57 S | np | 4.951 | | | 1826 | 1 | 145 | H. C. 218 | S. . . . 581 | 8 | 37 | 11 50 N| np | 13.324 | | | 1826 | 1 | 143 | Nova | S. . . . 578 | 8 | 33 | 11 16 S| np | 30.808 | Very slightly, if at all changed. Unchanged. ? colour. | | 1826 | 1 | 144 | Nova; Monocerotis| S. . . . 579 | 8 | 35 | 6 35 S | np | 17.918 | | | | | | | H & S. 96 | 8 | 39 | 71 27 N| np | 8.745 | | | 1826 | 1 | 145 | Nova; A and B | S. . . . 582 | 8 | 39 | 35 45 N| sf, np | 3.661 | | | 1826 | 1 | 146 | Nova; A and B | H & S. 97 | 8 | 41 | 15 29 N| sf | 16.521 | | | | | | | S. . . . 583 | 8 | 41 | 33 9 N | nf | 22.101± | | | 1826 | 1 | 147 | Nova; A and B | H & S. 98 | 8 | 43 | 31 16 N| np | 1.894 | | | 1824 | 3 | 123 | 145.144 | H & S. 96 | 8 | 39 | 71 27 N| np | 8.745 | Pos. changed — 5° 16'. Not measured by Sir W. H. Unchanged. | | Vol. | Part. | Page. | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|-------|------------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1824 | 3 | 125 | 17 Hydrae | H & S.99 | 8° 47' | 7° 17' S | 8° 6' 8" | np, sf | 5° 7.23" | Unchanged. | | | | | Nova | S....584 | 8° 47' | 10° 43' S | 5° 8' 49" | sp | 1° 11.189" | | | | | | Nova | S....585 | 8° 47' | 17° 34' S | 5° 3' 12" | np | 1° 9.363" | | | | | | ε³ Cancri | H & S 100 | 8° 49' | 33° 7' N | 2° 4' 49" | np | 1° 29.731" | Pos. unchanged. | | | | | ε⁴ Cancri | S....586 | 8° 50' | 32° 57' N | 4° 5' 25" | sf | 4° 4.850" | | | 1824 | 3 | 127 | 67 p Cancri | H & S 101 | 8° 51' | 28° 36' N | 5° 2' 40" | np | 1° 43.144" | Pos. unchanged. | | | | | Nova | S....587 | 8° 52' | 82° 8' N | 4° 8' 57" | np | 2° 24.342" | | | | | | Nova | S....588 | 8° 55' | 16° 57' S | 5° 8' 48" | np | 3° 0.232" | | | | | | 194 Bode Cancri | H & S 102 | 8° 57' | 23° 42' N | 6° 8' 37" | sp | 7° 6.040" | | | | | | H. C. 258 | S....589 | 8° 57' | 3° 31' N | 2° 3' 5" | sf, np | 12° 1.140" | | | 1824 | 3 | 149 | STRUVE, 325 | S....590 | 8° 58' | 53° 6' N | 5° 6' 31" | sf | 5° 5.513" | | | | | | 53 BODE Urs. Maj.| H & S 103 | 8° 59' | 62° 24' N | 6° 4' 49" | nf | 25° 3.446" | | | | | | Nova | S....591 | 9° 0' | 16° o' N | 2° 9' 56" | nf | 7° 6.034" | | | | | | STRUVE, 328 | S....592 | 9° 1' | 53° 28' N | 4° 4' 13" | nf | 20° 7.976" | | | | | | Nova | S....593 | 9° 4' | 79° 15' N | 8° 1' 14" | sf | 29° 3.320" | | | 1824 | 3 | 129 | 38 Lyncis | S....104 | 9° 7' | 37° 34' N | 2° 7' 20" | sp | 2° 8.887" | Unchanged. | | | | | Nova | S....594 | 9° 7' | 24° 24' N | 7° 3' 25" | nf | 7° 1.107" | | | | | | Nova | S....595 | 9° 10' | 19° 35' S | 1° 0' 2" | np | 1° 1.147" | | | | | | Nova | S....596 | 9° 10' | 50° 18' N | 4° 9' 40" | np | 6° 0.059" | | | | | | n/40 Lyncis | H & S 369 | 9° 10' | 35° 9' N | 5° 7' 15" | nf | 3° 22.287" | | | 1824 | 3 | 131 | 27 Hydrae | H & S 105 | 9° 12' | 8° 48' S | 5° 9' 21" | sp | 3° 45.689" | Pos. unchanged. | | | | | 21 Urs. Maj. 1 and 2 | H & S 370 | 9° 13' | 54° 47' N | 3° 9' 2" | np | 6° 4.474" | | | | | | ...1 and 3 | ... | ... | ... | ... | ... | ... | | | | | | H. C. 324 | S....597 | 9° 14' | 4° 17' N | 4° 0' 25" | np | 4° 45.000" | | | | | | IV. 55 | S....598 | 9° 17' | 46° 26' N | 7° 3' 31" | sf | 22° 1.169" | | | | | | 23 h Urs. Maj. | H & S 371 | 9° 17' | 63° 51' N | 0° 3' 33" | np | 26° 6.649" | | | | | | | | | | | | 27° 3.332" | | | 1824 | 3 | 154 | H. C. 273 | S....599 | 9° 18' | 7° 1' N | 5° 7' 41" | np, sf | 3° 5.513" | | | | | | ω Leonis | S....600 | 9° 19' | 9° 50' N | ... | ... | ... | | | | | | S. Re-exam. | ... | ... | ... | ... | ... | ... | | | | | | H & S 106 | S....601 | 9° 20' | 2° 0' S | 8° 6' 49" | nf | 1° 6.683" | Pos. very slightly changed. | | | | | STRUVE, 345 | S....602 | 9° 21' | 73° 52' N | 4° 4' 41" | sf | 5° 0.090" | Scarcely altered. | | | | | 6 Leonis | H & S 107 | 9° 22' | 10° 30' N | 1° 5' 27" | nf | 38° 1.128" | | | 1826 | 1 | 155 | STRUVE, 347 | S....602 | 9° 23' | 2° 16' N | 7° 4' 16" | sf | 3° 7.666" | | | | | | H. C. 215; A and B | S....603 | 9° 24' | 40° 46' N | 5° 7' 7" | sf | 24° 5.81" | | | | | | ...A and C | ... | ... | ... | ... | ... | ... | | | | | | 7 Leonis | H & S 108 | 9° 26' | 15° 10' N | 9° 2' 5" | nf | 58° 6.08" | Unchanged. | | | | | Nova | S....604 | 9° 27' | 18° 48' S | 0° 3' 30" | sf | 44° 1.999" | Changed in Pos. and Dist.? | | | | | 14 Leonis | H & S 109 | 9° 32' | 10° 43' N | 5° 3' 38" | nf | 51° 8.40" | | | 1826 | 1 | 157 | 9 Sextant | S....605 | 9° 45' | 5° 48' N | 2° 2' 43" | np | 51° 0.22" | Slight change in Pos. | | | | | H. C. 212 | S....606 | 9° 47' | 20° 37' N | 8° 4' 41" | sf | 30° 0.71" | | | | | | 40 BODE Felis | H & S 110 | 9° 56' | 17° 12' S | 2° 4' 45" | np | 21° 4.98" | | | | | | H. C. 283 | S....607 | 9° 58' | 18° 26' S | 5° 6' 12" | np, sf | 11° 3.52" | | | | | | ω Leonis | H & S 111 | 9° 59' | 12° 51' N | 3° 7' 16" | np | 54° 9.06" | | | 1826 | 1 | 135 | 145-145 | H & S 112 | 10° 3' | 71° 55' N | 7° 5' 20" | sf | 16° 8.43" | Binary; mean mot. + 0° 30' per ann. | | | | | γ Leonis 1 and 2 | H & S 113 | 10° 10' | 20° 45' N | 8° 2' 44" | sf | 3° 2.43" | Epoch 1825.30. | | | | | ...1 and 2 | ... | ... | ... | ... | np | ... | Pos. changed 4°.47; Dist. unaltered. | | | | | S. Re-exam. | ... | ... | ... | ... | sf | 2° 7.16" | Unchanged. | | | | | H & S 114 | ... | ... | ... | ... | nf | 6° 7.23" | Unchanged. | | | | | H & S 115 | ... | ... | ... | ... | np | 1° 0.387" | | | | | | I. 29 | S....608 | 10° 10' | 9° 39' N | 2° 6' 1" | nf | 3° 6.32" | | | 1826 | 1 | 160 | H. C. 150 | S....609 | 10° 22' | 22° 58' N | 6° 5' 30" | sf | 14° 2.05" | Single measure. | | | | | Nova | S....610 | 10° 26' | 16° 54' S | 5° 4' 6" | nf | 40° 8.65" | | | | | | Nova | S....611 | 10° 33' | 13° 49' S | 7° 6' 15" | sp | 59° 3.31" | | | | | | 35 Sextant. 1 and 2 | H & S 116 | 10° 34' | 5° 42' N | 3° 2' 26" | sp | 7° 8.69" | | | | | | ...1 and 3 | ... | ... | ... | ... | sp | 33° 5.00" | | | | | | 42 Leon. Min. | S....612 | 10° 36' | 31° 37' N | 8° 2' 36" | sf | 20° 3.04" | | | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position | Quadrant. | Distance. | Remarks | |------|-------|------|------------------|---------------------|-------|-------|----------|-----------|-----------|---------| | 1826 | I | 162 | P. X. 159 | S...613 | 10 39 | 14 41 S | 78 57 | nf | 31.651 | | | | | 163 | H.C. 331; A & B | S...614 | 10 39 | 14 20 S | 72 26 | sp | 7.262 | | | | | | A & C | | | | 68 44 | sp | 17.861 | | | | | | Nova | S...615 | 10 39 | 13 44 S | 88 44 | np | 26.078 | | | | | | P. X. 179 | S...616 | 10 43 | 8 25 N | 35 21 | np | 12.510 | | | | | | H. C. 227 | S...617 | 10 45 | 1 17 S | 87 47 | sf | 35.223 | | | 1824 | 3 | 142 | 54 Leonis | H&S 117 | 10 46 | 25 43 N | 8 19 | sf | 7.023 | Unchanged. | | | | 165 | Nova | S...618 | 10 47 | 20 9 S | 54 16 | sp | 19.101 | Distance increased? | | | | 143 | V. 111 | H&S 118 | 10 49 | 59 50 N | 51 46 | nf | 35.010 | Unchanged. | | | | 166 | II. 78 | S...619 | 10 57 | 8 0 N | 74 1 | sf | 8.637 | | | | | 167 | Nova | S...620 | 10 58 | 12 28 S | 73 19 | nf | 32.698 | | | 1826 | I | 167 | 1790.386; A and B.| S...621 | 11 0 | 66 59 N | 64 30 | nf | 43.431 | | | | | 168 | A and C | | | | 26 34 | np | 23.201 | | | | | 168 | 1790.389 | S...622 | 11 3 | 74 26 N | 26 16 | np | 12.479 | | | | | 144 | 145.68 | H&S 119 | 11 6 | 53 44 N | 75 29 | np | 13.144 | | | | | 169 | H. C. 61 | S...623 | 11 6 | 28 33 N | 5 13 | nf | 4.103 | | | | | 407 | 145.104 | H&S 372 | 11 7 | 15 22 S | 36 ± | np | 20 ± | | | 1824 | 3 | 145 | 145.26 | H&S 120 | 11 8 | 6 8 S | 7 37 | sf | 7.062 | | | | | 145 | φ Leonis | H&S 121 | 11 8 | 2 40 S | 16 56 | np | 46.256 | | | | | 140 | ψ Ursæ Maj. | H&S 122 | 11 9 | 32 33 N | 11 33 | sp | 2.809 | | | | | 131 | S. Re-exam. | | | | 25 28 | sp | 2.442 | Epoch 1825.25. | | | | 169 | H. C. 498 | S...624 | 11 10| 40 8 S | 18 1 | sp | 10.145 | | | | | 170 | H. C. 223 | S...625 | 11 10| 15 16 N | 79 40 | nf | 4.927 | | | 1824 | 3 | 151 | 201 BODE Camelop.| H&S 123 | 11 17| 82 2 N | 43 13 | np | 21.876 | | | | | 151 | 83 Leonis | H&S 124 | 11 18| 4 0 N | 61 7 | sf | 29.542 | Pos. changed + 6° 11'. | | | | 152 | τ Leonis | H&S 125 | 11 19| 3 50 N | 79 8 | sf | 35.217 | Much increased in Dist. | | | | 170 | 57 Urs. Maj. | S...626 | 11 19| 40 20 N | 79 45 | nf | 6.294 | Diff. of Pos. = 4° 9'. | | | | 153 | 145.70 | H&S 126 | 11 21| 42 21 N | 0 21 | sf | 13.040 | | | 1826 | I | 171 | Nova | S...627 | 11 21| 16 26 S | 60 45 | np, sf | 28.959 | | | | | 172 | 1790; 381 | S...628 | 11 21| 60 40 N | 0 22 | sf | 13.040 | | | | | 153 | 88 Leonis | H&S 127 | 11 23| 15 22 N | 50 14 | np | 14.670 | | | | | 154 | 90 Leonis 1 and 2.| H&S 128 | 11 25| 17 48 N | 61 8 | sp | 4.452 | | | | | | 1 and 3 | | | | 36 41 | sp | 0.753 | | | | | 172 | Nova | S...629 | 11 28| 22 25 N | 5 34 | np | 44.374 | | | 1826 | I | 173 | H. C. 64 | S...630 | 11 30| 27 57 N | 4 0 | nf | 5.592 | | | | | 156 | 92 Leonis | H&S 129 | 11 38| 21 13 N | 86 15 | np | 14.897 | | | | | 157 | Nova | H&S 130 | 11 38| 21 2 N | 65 3 | nf | 16.861 | | | | | 157 | § Virginis 1 and 2.| H&S 131 | 11 39| 9 15 N | 3 25 | np | | | | | | | 1 and 3 | | | | 53 19 | np | | | | | | 173 | H. C. 385 | S...631 | 11 39| 68 19 N | 89 4 | sf | 11.845 | | | 1826 | I | 174 | IV. 49 | S...632 | 11 43| 9 48 S | 61 44 | sp | 39.382 | | | | | 158 | V. 60 | H&S 132 | 11 44| 16 26 N | 75 57 | nf | 37.112 | | | | | 158 | 65 Urs. Maj. 1 and 2.| H&S 133 | 11 46| 47 29 N | 55 26 | nf | 4.020 | | | | | | 1 and 3 | | | | 24 17 | sf | 2.185 | | | | | 159 | 2 Comæ Beren. | H&S 134 | 11 55| 22 28 N | 31 15 | sp | 3.683 | | | | | 175 | 1790; 376 | S...633 | 11 56| 52 55 N | 4 26 | sf | 8.309 | | | 1826 | I | 175 | H. C. 232 | S...634 | 12 2 | 15 48 S | 7 3 | np | 7.971 | | | | | 176 | Nova | S...635 | 12 2 | 1 15 S | 7 4 | np | 23.673 | | | | | 160 | H. C. 354 | H&S 135 | 12 3 | 54 28 N | 46 19 | sp | 12.102 | | | | | 160 | 207 BODE Camel. | H&S 136 | 12 3 | 82 43 N | 13 16 | nf | 3.445 | | | | | 161 | H. C. 152 | H&S 137 | 12 6 | 6 15 S | 18 9 | np | 9.225 | | | 1826 | I | 176 | Nova | S...636 | 12 6 | 10 58 N | 24 37 | sp | 26.580 | | | | | 161 | 2 Canum Ven. | H&S 138 | 12 7 | 41 40 N | 10 29 | sp | 11.534 | | | | | 162 | STRUVE, 408 | H&S 139 | 12 8 | 81 6 N | 50 15 | sp | 15.389 | | | | | 163 | 145.22 | H&S 140 | 12 9 | 2 56 S | 72 58 | sp | 21.017 | | | | | 164 | 55 BODE Com. Ber.| H&S 141 | 12 12| 28 5 N | 23 42 | sp | 9.453 | | MDCCXXVI. | Vol. | Part. | Page. | Star's Name, &c. | Observer and Number. | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|-------|------------------|----------------------|------|-------|-----------|-----------|-----------|----------| | 1824 | 3 | 165 | 17 Virginis | H&S 142 | h. m. | 0° 19' N | 6° 36' np | ... 20.937 | Pos. changed + 11° 15', arising from Epoch 1825.30. [proper motion. | | 1826 | 1 | 333 | S. Re-exam. | | | | | | | Pos. unchanged. | | 1824 | 3 | 166 | 12 Com. Ber. | H&S 143 | 12 13 | 26° 51' N | 78° 47' sf | ... 5.950 | | | | 1826 | 1 | 177 | Nova | S....637 | 12 18 | 18° 58' N | 60° 54' sp | ... 1.633 | | | | 1824 | 3 | 167 | H. C. 385 | H&S 144 | 12 19 | 45° 50' N | 72° 52' sf | ... 11.679 | | | | 1826 | 1 | 177 | Nova | S....638 | 12 20 | 26° 54' N | 19° 13' sp | ... 24.436 | | | | 1824 | 3 | 167 | 3 Corvi | H&S 145 | 12 21 | 15° 30' S | 56° 27' sp | ... 24.005 | Unchanged. | | 1824 | 3 | 168 | H. C. 231 | H&S 146 | 12 22 | 2° 20' N | 19° 39' np | ... 49.745 | | | | 1824 | 3 | 169 | 145-118 | H&S 147 | 12 25 | 75° 46' N | 67° 10' nf | ... 5.805 | | | | 1824 | 3 | 169 | 24 Com. Ber. | H&S 148 | 12 26 | 19° 22' N | 2° 7' np | ... 26.047 | Unchanged. | | 1826 | 1 | 178 | V. 129 | S....039 | 12 29 | 3° 23' S | 15° 22' sf | ... 50.555 | | | | 1826 | 1 | 179 | Nova | S....640 | 12 29 | 4° 22' S | 5° 50' sf | ... 10.197 | Epoch 1825.28. Binary; mean mot. = -0°.667. Epoch 1825.32. | | 1824 | 3 | 170 | 145-38 | H&S 149 | 12 32 | 12° 1' S | 29° 26' sf | ... 6.881 | | | | 1826 | 1 | 335 | S. Re-exam. | | | | | | | | | 1824 | 3 | 171 | γ Virginis | H&S 150 | 12 32 | 0° 27' S | 13° 24' sf | ... 3.794 | | | | 1826 | 1 | 334 | S. Re-exam. | | | | | | | | | 1824 | 3 | 173 | III. 53 | H&S 151 | 12 36 | 2° 54' S | 78° 15' np | ... 10.766 | | | | 1826 | 1 | 179 | Nova | S....641 | 12 36 | 15° 20' N | 56° 35' sp | ... 33.359 | | | | 1824 | 3 | 174 | H. C. 230 | H&S 152 | 12 40 | 4° 48' N | 75° 38' sp | ... 10.109 | Unchanged. | | 1826 | 1 | 180 | Nova | S....642 | 12 40 | 14° 58' N | 53° 50' nf | ... 54.421 | | | | 1824 | 3 | 174 | IV. 58 1 and 2... | H&S 153 | 12 43 | 20° 9' N | 67° 49' sp | ... 16.963 | | | | 1826 | 1 | 177 | 12 Can. Ven. | H&S 158 | | | | | | | | 1824 | 3 | 178 | STRUVZ, 430... | H&S 159 | | | | | | | | 1826 | 1 | 180 | Nova | S....643 | 12 44 | 17° 4' S | 25° 4' np | ... 23.509 | Pos. changed + 7° 55'. | | 1824 | 3 | 176 | II. 42 | H&S 156 | 12 40 | 3° 54' S | 60° 19' sf | ... 6.758 | | | | 1826 | 1 | 177 | P. XII. 221 | H&S 157 | 12 47 | 12° 29' N | 73° 43' sf | ... 29.170 | Unchanged. | | 1824 | 3 | 177 | Nova | H&S 158 | 12 48 | 39° 18' N | 43° 2' sf | ... 19.764 | | | | 1826 | 1 | 178 | Nova | H&S 159 | 12 48 | 55° 1' N | 15° 15' np | ... 4.136 | | | | 1824 | 3 | 407 | 212 Bone Camel. | H&S 373 | 12 48 | 84° 24' N | 57° 0' np | ... 22.069 | Pos. changed + 7° 50'. | | 1826 | 1 | 181 | Nova | S....644 | 12 51 | 15° 18' N | 81° 9' sp | ... 27.159 | | | | 1826 | 1 | 181 | Nova | S....645 | 12 58 | 1° 35' N | 84° 48' nf | ... 8.098 | | | | 1824 | 3 | 180 | θ Virgin. 1 and 2.| H&S 160 | 13 | 4° 34' S | 77° 8' np | ... 8.301 | | | | 1826 | 1 | 182 | Nova | S....646 | 13 | 1° 16° 25' N | 72° 46' np | ... 4.090 | | | | 1826 | 1 | 183 | Nova | S....647 | 13 | 1° 43' S | 56° 9' sp | ... 43.129 | Distance increased. | | 1824 | 3 | 181 | 54 Virginis | H&S 161 | 13 | 4° 17° 51' S | 56° 17' nf | ... 6.774 | | | | 1826 | 1 | 183 | Nova | S....648 | 13 | 5° 19' N | 25° 22' nf | ... 28.970 | | | | 1824 | 3 | 181 | P. XIII. 25 | H&S 162 | 13 | 6° 10° 24' S | 28° 21' nf | ... 44.847 | | | | 1824 | 3 | 182 | H. C. 506 | H&S 163 | 13 | 15° 3° 38' N | 13° 39' nf, sp | ... 28.465 | | | | 1824 | 3 | 182 | ζ Urs. Maj. | H&S 164 | 13 | 17° 55° 52' N | 57° 46' sf | ... 14.455 | Unchanged. | | 1826 | 1 | 184 | 426 Bode Urs. Maj.| S....649 | 13 | 22° 60° 53' N | 21° 2' sf | ... 3.1495 | Distance increased. | | 1824 | 3 | 185 | V. 128 | H&S 165 | 13 | 23° 11° 46' S | 11° 13' nf | ... 47.720 | | | | 1826 | 1 | 185 | Nova | S....650 | 13 | 25° 12° 33' S | 59° 10' sf | ... 45.524 | | | | 1824 | 3 | 186 | H. C. 335? | H&S 166 | 13 | 26° 27° 10' N | 24° 51' nf | ... 9.613 | | | | 1826 | 1 | 185 | Nova | S....651 | 13 | 27° 25° 35' S | 77° 39' sp | ... 10.350 | Pos. changed -6° 4'. Binary? mean mot. = -0°.288. | | 1824 | 3 | 186 | 81 Virginis | H&S 167 | 13 | 28° 6° 57' N | 47° 16' nf | ... 4.020 | | | | 1824 | 3 | 408 | 84 Virginis | H&S 374 | 13 | 34° 4° 27' N | 40° 9' sp | ... 3.918 | | | | 1826 | 1 | 186 | Nova | S....652 | 13 | 36° 9° 40' S | 56° 50' sf | ... 53.869 | | | | 1826 | 1 | 186 | Nova | S....653 | 13 | 38° 19° 18' N | 82° 55' sp | ... 30.517 | | | | 1826 | 1 | 187 | Nova | S....654 | 13 | 40° 39° 25' N | 32° 13' sp | ... 10.844 | | | | 1824 | 3 | 187 | H. C. 335 | H&S 168 | 13 | 41° 27° 52' N | 70° 25' sf | ... 5.664 | | | | 1826 | 1 | 187 | Nova | S....655 | 13 | 42° 18° 35' N | 14° 0' nf | ... 35.054 | | | | 1826 | 1 | 188 | Nova | S....656 | 13 | 42° 22° 12' N | 61° 50' sp | ... 1.26.033 | | | | 1824 | 3 | 188 | η Bootis | H&S 169 | 13 | 46° 19° 19' N | 29° 27' sf | ... 6.203 | | | | Vol. | Part | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks | |------|------|------|------------------|---------------------|------|-------|-----------|-----------|-----------|---------| | 1824 | 3 | 189 | H. C. 162 | H&S 170 | 13 46 | 33 43 N | 58 28 | np | 7.780 | | | | | | Nova | S...657 | 13 46 | 7 12 S | 38 16 | nf | 2.699 | | | | | | H. C. 335 | S...658 | 13 51 | 26 41 N | 28 52 | sp | 5.016 | | | | | | r Virginis | H&S 171 | 13 52 | 2 26 N | 19 57 | np | 19.290 | | | | | | 145.82 | H&S 172 | 13 54 | 20 17 N | 71 43 | sf | 21.392 | | | 1826 | 1 | 189 | H. C. 233 | S...659 | 13 56 | 17 12 S | 79 27 | sf | 32.031 | | | | | | Nova | S...660 | 14 0 | 22 3 N | 69 43 | nf | 4.888 | | | | | | Nova | S...661 | 14 1 | 2 30 S | 62 51 | nf | 7.937 | | | | | | Nova | S...662 | 14 3 | 29 35 N | 17 32 | sf | 13.801 | | | | | | 145.98 | H&S 173 | 14 5 | 6 14 N | 79 20 | sp | 6.049 | | | 1824 | 3 | 191 | z Bootis | H&S 174 | 14 7 | 52 39 N | 31 15 | sp | 13.136 | Pos. slightly changed. | | | | | H Bootis | H&S 175 | 14 10 | 52 12 N | 56 36 | nf | 38.047 | Very little changed. | | | | | P. XIV. 62 | H&S 176 | 14 13 | 6 56 S | 77 6 | np | 5.880 | | | | | | H. C. 334 | H&S 177 | 14 14 | 9 16 N | 83 24 | sp | 7.185 | | | | | | H. C. 470 | H&S 178 | 14 15 | 12 3 N | 65 17 | np | 10.192 | | | 1824 | 3 | 197 | x Turdi Sol. | H&S 179 | 14 15 | 19 8 S | 25 49 | np | 35.121 | | | | | | H. C. 165 | H&S 180 | 14 22 | 29 6 N | 7 36 | sp | 25.781 | | | | | | w Bootis | H&S 181 | 14 32 | 17 12 N | 7 53 | sf | 6.889 | Unchanged. | | | | | z Bootis | H&S 182 | 14 33 | 14 31 N | 30 58 | sf | 1.683 | Unchanged in Position. | | | | | II. 82 | H&S 183 | 14 36 | 8 27 N | 4 27 | sf | 7.335 | | | 1824 | 3 | 202 | 73 Hydræ | H&S 184 | 14 36 | 24 40 S | 46 40 | sf | 9.995 | Changed 8° 25' in Pos. | | | | | i Bootis | H&S 185 | 14 37 | 27 51 N | 52 59 | np | 3.931 | Binary; mean mot. + 0°.4378. | | | | | S. Re-exam. | | | | 54 26 | np | 3.356 | Epoch 1825.34. | | | | | Nova | S...663 | 14 40 | 23 30 S | 50 53 | sp | 56.666 | | | | | | z Libra | H&S 186 | 14 41 | 15 15 S | 44 33 | np | 3 50.853 | Greatly changed in Pos. and Dist. | | | | | g Bootis | H&S 187 | 14 43 | 19 51 N | 70 54 | np | 8.606 | Epoch 1825.37. | | | | | S. Re-exam. | | | | 67 0 | np | 7.776 | Probably changed in Pos.; our observations rather dubious. | | 1824 | 3 | 213 | 39 Bootis | H&S 188 | 14 44 | 49 27 N | 44 55 | sf | 4.626 | | | | | | 145.28 | H&S 190 | 14 48 | 20 35 S | 0 9 | np | 10.833 | | | | | | 18 Libra | H&S 375 | 14 49 | 10 24 S | 54 8 | nf | 26.614 | | | | | | Nova | S...664 | 14 53 | 16 29 N | 84 2 | np | 25.837 | | | | | | 346 Bode Bootis | H&S 189 | 14 55 | 48 2 N | 68 53 | sf | 36.544 | Unchanged. | | 1824 | 3 | 216 | 145.63 | H&S 191 | 14 55 | 54 33 N | 73 10 | np | 40.845 | | | | | | Nova | S...665 | 14 55 | 17 13 S | 1 51 | sf | 25.270 | | | | | | 145.37 | H&S 192 | 14 56 | 6 12 N | 76 30 | np | 10.749 | | | | | | 33 Bode Urs. Min.| S...666 | 14 56 | 75 36 N | 52 3 | nf | 2 53.180 | | | | | | 44 Bootis | H&S 193 | 14 58 | 48 21 N | 40 53 | sp | 2.277 | | | 1824 | 3 | 219 | H. C. 47/2 | H&S 194 | 14 59 | 9 55 N | 60 50 | sp | 4.777 | | | | | | 24 Libra 1 and 2.| H&S 376 | 15 2 | 19 6 S | 21 39 | sf | 50.629 | | | | | | | | | | 21 39 | sf? | 31.181 | 1, 2 and 3 are precisely in a line. | | | | | Nova | S...667 | 15 3 | 4 55 S | 65 39 | np | 49.037 | | | | | | 97 Bode Libra | H&S 195 | 15 4 | 17 45 S | 50 58 | sf | 10.740 | | | | | | Nova | S...668 | 15 4 | 39 38 N | 63 50 | np | | | | 1824 | 3 | 221 | V. 125 | H&S 196 | 15 5 | 28 36 N | 43 17 | sp | 32.553 | | | | | | 145.62 | H&S 197 | 15 5 | 19 56 N | 80 51 | nf | 25.842 | | | | | | H. C. 289 | H&S 198 | 15 5 | 39 22 N | 13 29 | np | 31.239 | | | | | | Nova | S...669 | 15 5 | 15 5 N | 73 8 | nf | 6.057 | | | | | | g Bootis | H&S 199 | 15 8 | 34 0 N | 10 31 | nf | 45.333 | Slightly changed in Pos. | | 1824 | 3 | 223 | H. C. 470 | H&S 200 | 15 10 | 11 7 N | 84 20 | sf | 13.268 | | | | | | 5 Serpentis | S...670 | 15 10 | 2 28 N | 50 57 | nf | 10.698 | | | | | | n Coron. Bor. | H&S 201 | 15 16 | 30 57 N | 64 3 | nf | 1.577 | Scarcely changed. | | | | | H. C. 288 | H&S 202 | 15 18 | 8 41 S | 44 39 | sf | 51.760 | Binary; mean mot. -0°.5783. | | | | | I. 17 | H&S 203 | 15 18 | 37 59 N | 63 42 | np | 1.652 | Epoch 1825.46. | | | | | S. Re-exam. | | | | 03 32 | np | 1.421 | | | Vol. | Part. | Page. | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|-------|------------------|--------------------|------|-------|-----------|-----------|----------|---------| | 1824 | 3 | 229 | μ Bootis | H & S. 204 | 15 | 18 | 38° 1' N | sf | 1 48.539 | Unchanged. | | | | 196 | Nova | S. 671 | 15 | 18 | 10° 20' S | sf | 9.573 | | | | | 197 | Nova | S. 672 | 15 | 22 | 19° 35' S | np | 11.468 | | | | | 197 | Nova | S. 673 | 15 | 23 | 23° 52' S | np, sf | 9.178 | Binary; mean mot. — 0°.726. Epochs 1825.46 and 1825.42. | | | | 341 | Serpentis | H & S. 205 | 15 | 26 | 11° 9' N | sp | 3.053 | | | | | | Re-exam. | | | | 69° 49' | | 3.208 | | | 1824 | 3 | 411 | STRUVE, 489 | H & S. 377 | 15 | 27 | 27° 20' N | sp | 5.941 | | | | | 232 | BODE Librae | H & S. 206 | 15 | 30 | 8° 11' S | sp | 11.862 | | | | | 198 | Nova | S. 674 | 15 | 32 | 36° 54' N | sp | 15.648 | | | | | 233 | H. C. 469 | H & S. 207 | 15 | 33 | 10° 33' S | nf | 27.066 | | | | | 234 | Coron. Bor. | H & S. 208 | 15 | 33 | 37° 11' N | np | 7.168 | Changed + 5° 6' in Position. | | 1824 | 3 | 236 | 145.32 | H & S. 209 | 15 | 40 | 36° 59' N | np | 31.517 | | | | | 237 | Urs. Min. | H & S. 210 | 15 | 40 | 8° 1' N | nf | 31.102 | | | | | 238 | II. 85 | H & S. 211 | 15 | 47 | 1° 39' S | np | 6.882 | Changed — 9° 8' in Pos. and nearly 3" in Distance. | | 1824 | 3 | 239 | III. 103 | H & S. 212 | 15 | 48 | 3° 56' N | np | 10.665 | | | | | 240 | H. C. 343 | H & S. 213 | 15 | 49 | 19° 24' S| np | 19.890 | | | 1826 | 1 | 198 | Nova; A and B. | S. 675 | 15 | 51 | 22° 16' N| sp | 5.086 | | | | | 199 | A and C. | | | | 33° 34' | | 1.533 | | | 1824 | 3 | 240 | V. 126 | H & S. 214 | 15 | 52 | 17° 54' N| sp | 34.923 | | | | | 241 | II. 21; 1 and 2. | H & S. 215 | 15 | 54 | 10° 50' S| sf | 10.661 | | | | | | 1 and 3. | | | | 78° 39' | np | 4.1533 | Binary? Mean mot. — 0°.256. | | 1824 | 3 | 243 | Scorpii | H & S. 216 | 15 | 54 | 10° 52' S| nf | 6.769 | Epoch 1825.50. Not the slightest alteration in the Pos. or Dist. of A. and B. Sir W. H.'s Pos. = 54° 27' sf. Mr. H. supposes his micrometer was erroneously read off. | | | | 343 | A and B. | S. Re-exam. | | | 81° 54' | nf | 1.358 | | | | | 345 | A and C. | | | | 9° 3' | nf | 6.961 | | | | | 346 | B and C. | | | | 17° 30' | nf | 3.501 | | | | | 199 | Corona Bor. | S. 676 | 15 | 54 | 33° 52' N| sf | 19.196 | | | 1824 | 3 | 244 | Scorpii | H & S. 217 | 15 | 55 | 19° 18' S| nf | 13.650 | Unchanged. | | | | 245 | H. C. 159 | H & S. 218 | 15 | 58 | 13° 49' N| np | 31.935 | Distance diminished 8".711. | | | | 246 | Herculis | H & S. 219 | 16 | 0 | 17° 32' N| nf | 31.109 | Unchanged. | | | | 247 | Scorpii | H & S. 220 | 16 | 2 | 18° 58' S| np | 40.817 | Binary; mean mot. + 0°.510. | | | | 247 | Serpent | H & S. 221 | 16 | 4 | 1° 14' N | np, sf | 4.215 | Epoch 1825.41. | | | | 347 | Re-exam. | | | | 48° 10' | np | 3.501 | | | 1824 | 3 | 248 | Coron. Bor. | H & S. 222 | 16 | 8 | 34° 20' N| nf | 1.455 | Binary; mean mot. + 2.13, much accelerated and Dist. diminished. | | | | 348 | A and B. | S. Re-exam. | | | 12° 29' | nf | 1.480 | Epochs 1825.44 and 1825.49. | | | | 350 | A and C. | | | | 0° 39' | sf | 42.175 | Epoch 1825.53. | | 1824 | 3 | 252 | Coron. Bor. 1 and 2. | H & S. 223 | 16 | 10 | 29° 36' N| nf | 28.694 | Unchanged in Distance. | | | | | 1 and 3. | | | | 35° 9' | nf | 6.420 | Slightly changed. | | 1824 | 3 | 254 | Scorpii | H & S. 224 | 16 | 10 | 25° 9' S | np | 20.595 | | | | | 255 | V. 134 | H & S. 225 | 16 | 10 | 19° 36' S| np | 47.120 | | | | | 256 | V. 124 | H & S. 226 | 16 | 10 | 19° 40' S| np | 13.280 | | | 1824 | 3 | 257 | Herculis | H & S. 227 | 16 | 14 | 19° 35' N| sp | 38.325 | No material change. | | | | 259 | Ophiuchi | H & S. 228 | 16 | 15 | 23° 1' S | nf | 4.065 | Sir W. H.'s Pos. = 54° 6' sp; it cannot be the same star. | | | | 201 | II. 88 | S. 677 | 16 | 15 | 14° 15' N| np | 6.770 | | | | | 202 | Herculis | S. 678 | 16 | 16 | 32° 45' N| nf | 36.844 | | | 1824 | 3 | 260 | H. C. 78 | H & S. 229 | 16 | 18 | 37° 27' N| np | 10.155 | | | 1824 | 3 | 261 | III. 102 | H & S. 230 | 16 | 21 | 11° 1' N | nf | 14.833 | Probably changed in Pos. | | | | 261 | BODE Hercul. | H & S. 231 | 16 | 21 | 18° 47' N| sf | 3.236 | | | | | 262 | II. 23 | H & S. 232 | 16 | 23 | 51° 7' | np | 7.649 | | | | | 263 | H. C. 228 | H & S. 233 | 16 | 23 | 8° 42' N | nf | 59.544 | | | | | 263 | Hercul. | H & S. 234 | 16 | 32 | 4° 33' N | sp | 8.839 | | | Vol. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|------|------------------|---------------------|-------|-------|-----------|-----------|----------|----------| | 1824 | 3 | 17 Dracon | H & S 236 | 16 32 | 53 17 N | 25 26 sf | 4.512 | Unchanged. | | | | Nova | S...679 | 16 32 | 23 15 sf | 17.034 | 54.307 | | | | | V. 127; 1 and 2 | H & S 235 | 16 34 | 6 57 np | 1 30.275 | | | | | ζ Herculis | H & S 237 | 16 35 | 31 56 sp | Single. | | | | | S. Re-exam. | | | | Single. | | | 1826 | 1 | | | | | 1825.57. | | | 1824 | 3 | H. C. 369 | H & S 238 | 16 35 | 24 0 np | 6.755 | No certainty in Pos.; but increased in [Distance. | | | | Nova | S...680 | 16 35 | 13 58 np | 13.029 | | | | | 43 Herculis | H & S 239 | 16 37 | 8 55 sp | 20.094 | | | | | 46 Herculis | S...681 | 16 38 | 28 42 sf | 5.397 | | | | | 19 Ophiuchi | H & S 378 | 16 38 | 2 24 sf | 10° or 15° | | | 1826 | 1 | Nova; A and B | S...682 | 16 39 | 30 18 sf | 14.761 | | | | | A and C | | | | 4.299 | | | | | A and D | | | | 1 min. ± | | | 1826 | 1 | Nova | S...683 | 16 42 | 36 15 nf | 7.158 | Binary; mean mot. = 0°.5792. Epochs 1825.52 and 1825.47. | | | | P. XVI. 236 | H & S 240 | 16 46 | 19 15 sp | 5.641 | | | | | H. C. 510 | H & S 241 | 16 53 | 47 36 np | 55.126 | | | | | 21 μ Draconis | H & S 242 | 17 3 | 54 43 sp | 3.907 | | | | | S. Re-exam. | | | | 4.330 | | | 1826 | 1 | Nova | S...684 | 17 3 | 30 37 sf | 24.499 | Inaccurate from erroneous micrometrical Epochs 1824.86 and 1825.17. [reading. | | | | 36 Ophiuchi | H & S 243 | 17 4 | 26 18 sp | 5.546 | | | | | 1 and 2 | | | | Distance. | | | | | A and B | S. Re-exam. | | | 5.200 | | | | | A and C | | | | 15.252 | | | | | B and C | | | | 13.689 | | | 1824 | 3 | α Herculis | H & S 244 | 17 6 | 14 36 sf | 5.286 | | | | | 38 Ophiuchi | S...685 | 17 6 | 26 25 np | 7.137 | | | | | 39 ο Ophiuchi | H & S 245 | 17 7 | 24 55 np | 12.512 | | | 1824 | 3 | δ Herculis | H & S 246 | 17 8 | 25 3 sf | 28.869 | Altered + 9° 42' in Pos. and — 5°.349 in Epoch 1825.50. [Dist. | | | | S. Re-exam. | | | | 26.694 | | | 1824 | 3 | Serp. Ophiuch. | H & S 247 | 17 11 | 12 39 nf | 50.213 | | | | | Nova | S...686 | 17 11 | 28 57 nf | 54.982 | | | | | 70 Herculis | S...687 | 17 13 | 24 41 nf | 38.339 | | | | | η Herculis | H & S 248 | 17 17 | 37 19 np | 4.463 | | | 1826 | 1 | Nova | S...688 | 17 18 | 37 8 nf | 33.348 | Pos. changed 7° 32'; Dist. + 1°.494. | | | | Nova | S...689 | 17 19 | 39 25 sp | 29.272 | | | | | Nova | S...690 | 17 23 | 35 5 sf | 10.799 | | | | | 53 Ophiuchi | H & S 249 | 17 26 | 9 43 sp | 41.662 | | | | | 53 Draconis | H & S 250 | 17 29 | 55 19 np | 2.242 | | | 1824 | 3 | 254 Bode Oph. 1 & 2 | H & S 251 | 17 30 | 2 8 np | 51.213 | Unchanged in Pos. | | | | 2 and 3 | | | | 18.090 | | | | | III. 104. A and B.| S...691 | 17 32 | 24 30 nf | 54.310 | | | | | A and C | | | | 17.214 | | | | | 61 Ophiuchi | H & S 252 | 17 36 | 2 41 sf | 28.267 | | | | | H. C. 348 | H & S 253 | 17 36 | 13 14 sf | 20.520 | | | | | Nova | S...692 | 17 38 | 31 14 np | 15.869 | | | | | μ Herculis | S...693 | 17 39 | 27 50 sf | 5.029 | | | 1826 | 1 | 295 Bode Oph. | S...694 | 17 43 | 1 10 sp | 29.297 | Probably unchanged. | | | | Nova | S...695 | 17 43 | 25 19 nf | 22.681 | | | | | ↓ Draconis | H & S 254 | 17 45 | 72 14 np | 6.768 | | | | | Nova | S...696 | 17 51 | 6 51 sf | 31.777 | | | | | 67 Ophiuchi | H & S 255 | 17 52 | 2 57 sf | 8.396 | | | | | H. C. 168 | H & S 256 | 17 52 | 30 5 np | 55.228 | Perhaps slight change in Pos. | | | | 145.40 | H & S 379 | 17 52 | 22 58 sp | 10.952 | | | | | 95 Herculis | H & S 257 | 17 54 | 21 36 nf | 6.623 | | | | | II. 90 | S...697 | 17 54 | 26 33 sf | 7.503 | | MDCCCXXVI. | Vol. | Part. | Page | Star's Name, &c. | Observer and Number. | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|------------------|----------------------|------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 217 | Nova | S. . . . 698 | h. m. | 22° 30' S | 47° 27' | np | 30° 922 | Binary; mean mot. — 6°.811; not uniform. Epoch 1825 56. | | | | 288 | 70 p Ophiuchi | H&S 258 | | 17° 56' | 2° 33' N | sf | 4° 266 | Scarcely altered. | | | | 365 | | S. Re-exam. | | | | sf | 4° 765 | | | | | 218 | Nova | S. . . . 699 | | 17° 56' | 25° 23' N| sp | 18° 744 | | | | | 292 | H. C. 362 | H&S 259 | | 17° 57' | 64° 9' N | np | 21° 093 | | | | | 293 | III. 56 | H&S 260 | | 17° 57' | 12° 0' N | sp | 6° 748 | | | 1824 | 3 | 219 | Nova | S. . . . 700 | | 18° 0' | 16° 43' S| np | 28° 969 | Distance increased. | | | | 294 | 73 g Ophiuchi | H&S 261 | | 18° 1' | 3° 57' N | sp | 1° 89 | | | | | 296 | 100 Herculis | H&S 262 | | 18° 1' | 2° 6' N | nf, sp | 1° 4281 | | | | | 296 | Nova | H&S 263 | | 18° 7' | 18° 49' S| nf | 54° 302 | | | | | 297 | Struve, 569 | H&S 264 | | 18° 8' | 18° 38' S| nf | 16° 419 | | | 1824 | 3 | 298 | I. 86 | H&S 265 | | 18° 12' | 25° 28' N| np | 4° 587 | Unchanged. | | | | 299 | H. C. 298 | H&S 266 | | 18° 12' | 15° 10' S| sp, nf | 1° 4091 | Binary? Epoch 1825 54. | | | | 299 | 40 Ceph. or Drac.| H&S 267 | | 18° 13' | 7° 58' N | sp | 21° 302 | | | | | 219 | H. C. 474 | S. . . . 701 | | 18° 15' | 6° 41' S | sp | 6° 761 | | | | | 301 | 59 d Serpent. | H&S 268 | | 18° 18' | 0° 5' N | np | 4° 151 | | | | | 371 | S. Re-exam. | | | | | np | 4° 465 | | | 1826 | 1 | 220 | Nova | S. . . . 702 | | 18° 20' | 19° 13' N| sp, nf | 6° 888 | Binary? mean mot. — 0°.205. Epoch 1825 55. | | | | 303 | 39 Dracon. 1 and 2.| H&S 269 | | 18° 21' | 5° 42' N | nf | 3° 599 | | | | | 372 | | S. Re-exam. | | | | nf | 1° 30.201 | | | | | 373 | | S. Re-exam. | | | | nf | 3° 593 | | | | | 220 | Nova | S. . . . 703 | | 18° 25' | 32° 8' N | nf | 1° 28.039 | | | | | 305 | H. C. 300 | H&S 270 | | 18° 30' | 5° 13' N | np | 6° 433 | | | | | 305 | H. C. 294 | H&S 271 | | 18° 30' | 4° 7' N | np | 26° 226 | | | | | 307 | a Lyrae | H&S 272 | | 18° 31' | 38° 37' N| sf | 42° 108 | Changed in Pos. and Dist. by proper mot*. Epoch 1825 56. | | | | 374 | S. Re-exam. | | | | | sf | 41° 563 | | | | | 221 | H. C. 87 | S. . . . 704 | | 18° 32' | 9° 33' N | sf | 57° 657 | | | | | 309 | IV. 94 | H&S 273 | | 18° 36' | 34° 32' N| nf | 24° 036 | | | | | 310 | H. C. 296 | H&S 274 | | 18° 36' | 10° 39' S| np | 5° 306 | | | | | 310 | 5 Aquilae | H&S 275 | | 18° 37' | 1° 9' S | sf | 14° 468 | | | 1824 | 3 | 311 | 4. * Lyrae | H&S 276 | | 18° 38' | 39° 27' N| nf | 4° 010 | Binary? mean mot. — 0°.19. Epoch 1825 53. | | | | 313 | inter 4 and 5 Lyrae.| H&S 277 | | 18° 38' | 39° 27' N| sf | 5° 3 | Binary? mean mot. — 0°.325. Epoch 1825 53. | | | | 314 | 5 Lyrae | H&S 278 | | 18° 38' | 39° 27' N| np, sf | 3° 801 | | | | | 375 | S. Re-exam. | | | | | np, sf | 3° 340 | | | | | 315 | 5 Lyrae | H&S 279 | | 18° 38' | 37° 25' N| sf | 44° 240 | | | | | 221 | Nova | S. . . . 705 | | 18° 39' | 34° 22' N| sf | 4° 492 | | | 1824 | 3 | 317 | H. C. 170 | H&S 280 | | 18° 42' | 10° 47' N| sp | 4° 794 | Change of Pos. = + 5° 21'. | | | | 222 | 7 Lyrae | S. . . . 706 | | 18° 42' | 32° 37' N| sf | 5° 984 | | | | | 317 | H. C. 171 | H&S 281 | | 18° 43' | 33° 10' N| sf | 45° 778 | | | | | 318 | H. C. 172 | H&S 282 | | 18° 43' | 33° 46' N| np | 40° 035 | | | | | 319 | 6 Serpentis | H&S 283 | | 18° 48' | 3° 58' N | sf | 21° 079 | | | 1824 | 3 | 320 | o Draconis | H&S 284 | | 18° 49' | 5° 10' N | np | 29° 949 | No material change. | | | | 223 | 11 Aquilae | S. . . . 707 | | 18° 51' | 13° 23' N| sp | 19° 058 | Unchanged. | | | | 224 | II. 93 | S. . . . 708 | | 18° 52' | 14° 41' N| np | 6° 677 | Pos. changed 7° 21'; ann. mot. + 0°.173. | | | | 225 | L. 58 | S. . . . 709 | | 18° 52' | 3° 11' N | np | 5° 478 | | | | | 321 | P. XVIII. 274 | H&S 285 | | 18° 54' | 0° 58' S | sf | 26° 019 | | | 1824 | 3 | 322 | 15 Aquilae | H&S 286 | | 18° 56' | 4° 17' S | sp | 35° 619 | | | | | 226 | Nova | S. . . . 710 | | 18° 57' | 10° 33' S| nf | 7° 054 | | | | | 226 | Nova | S. . . . 711 | | 18° 57' | 2° 48' S | sf | 45° 108 | | | | | 323 | III. 109 | H&S 287 | | 18° 58' | 6° 53' N | np | 8° 521 | | | | | 227 | I. 59 | S. . . . 712 | | 18° 58' | 3° 32' N | sp | 2° 700 | | | 1826 | 1 | 228 | 233 Bode Dracon. | S. . . . 713 | | 18° 59' | 7° 33' N | sp | 6° 549 | | | | | 324 | H. C. 19? | H&S 288 | | 19° 2' | 3° 18' N | sp | 17° 124 | | | | | 229 | Nova | S. . . . 714 | | 19° 2' | 3° 28' N | np | 13° 663 | | | | | 325 | Prec. n Lyrae | H&S 289 | | 19° 6' | 3° 44' N | nf | 40° 391 | | | | | 325 | 6 Bode Cygni | H&S 290 | | 19° 7' | 4° 31' N | sp | 10° 576 | | | Vol. | Part. | Page | Star's Name, &c. | Observer and Number. | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|------------------|----------------------|------|-------|-----------|-----------|----------|---------| | 1824 | 3 | 326 | ν Lyrae | H&S 291 | 19 | 8 | 38°51'N | 5°58' | nf | 29.336 | | 1826 | 1 | 229 | Nova | S...715 | 19 | 8 | 16°15'S | 74°33' | nf | 9.176 | | 1826 | 1 | 230 | Nova | S...716 | 19 | 8 | 16°14'S | 70°51' | sp | 6.286 | | 1824 | 3 | 327 | θ Lyrae | H&S 292 | 19 | 10 | 37°49'N | 17°52' | nf | 41.662 | | 1824 | 3 | 328 | H.C. 90 | H&S 293 | 19 | 11 | 5°16'N | 87°45' | np | 31.420 | | 1826 | 1 | 231 | 28 Aquilae | S...717 | 19 | 11 | 12°1N | 85°6' | sf | 59.280 | | 1824 | 3 | 329 | H.C. 111 | H&S 294 | 19 | 18 | 9°54'S | 35°49' | sf | 11.314 | | 1824 | 3 | 330 | III. 57 | H&S 295 | 19 | 19 | 20°40'N | 63°26' | np, sf | 6.938 | | 1824 | 3 | 331 | II. 69 | H&S 296 | 19 | 19 | 36°10'N | 23°16' | nf, sp | 7.430 | | 1824 | 3 | 332 | B Cygni | H&S 297 | 19 | 24 | 27°35'N | 35°15' | | 34.383 | | 1826 | 1 | 231 | II. 99 | S...718 | 19 | 25 | 27°54'N | 85°38' | nf | 6.840 | | 1826 | 1 | 232 | Nova A and B | S...719 | 19 | 25 | 36°21'N | 33°27' | nf | 6.295 | | 1826 | 1 | 233 | A and C | | | | | | | 53.228 | | 1826 | 1 | 233 | I. 13 | S...720 | 19 | 27 | 10°33'S | 46°3' | np | 4.488 | | 1826 | 1 | 234 | Sagittæ | S...721 | 19 | 29 | 16°4N | 8°57' | nf | 31.913 | | 1826 | 1 | 235 | H.C. 116 | S...722 | 19 | 29 | 17°19'S | 32°45' | sp | 10.669 | | 1824 | 3 | 334 | 151 Bode Aquilæ | H&S 298 | 19 | 34 | 8°43'S | 56°34' | sf | 37.112 | | 1826 | 1 | 236 | L. 91 | S...723 | 19 | 36 | 10°21'N | 6°27' | np | 3.994 | | 1824 | 3 | 335 | 16 Cygni | H&S 299 | 19 | 37 | 50°6N | 45°13' | np, sf | 37.504 | | 1824 | 3 | 336 | STRUVE, 64 | H&S 300 | 19 | 38 | 33°14'N | 56°15' | np | 25.871 | | 1824 | 3 | 336 | Nova 1 and 2 | H&S 301 | 19 | 38 | 33°14'N | 15°56' | nf | | | | | | I and 3 | | | | | 57°35' | sf | | | 1824 | 3 | 337 | STRUVE, 63 | H&S 302 | 19 | 38 | 77°52'N | 68°30' | nf | 11.936 | | 1824 | 3 | 338 | STRUVE, 636 1 and 2 | H&S 303 | 19 | 38 | 35°39'N | 36°52' | sf | 15.133 | | | | | I and 3 | | | | | 18°5' | sp | 19.831 | | 1826 | 1 | 236 | Nova | S...724 | 19 | 39 | 20°30'N | 6°34' | sp | 5.122 | | 1824 | 3 | 339 | 2 Cygni | H&S 304 | 19 | 39 | 44°42'N | Single. | Single. | | | 1826 | 1 | 370 | S. Re-exam. | | | | | | | | | 1826 | 1 | 237 | V. 137 | S...725 | 19 | 39 | 34°37'N | 60°49' | nf | 38.745 | | 1824 | 3 | 339 | χ Cygni | H&S 305 | 19 | 40 | 33°20'N | 16°42' | sf | 25.503 | | 1826 | 1 | 238 | Nova | S...726 | 19 | 41 | 32°27'N | 63°30' | sp | 33.444 | | 1824 | 3 | 340 | π Aquilæ | H&S 306 | 19 | 41 | 11°22'N | 45°27' | sf | 1.957 | | 1824 | 3 | 377 | S. Re-exam. | | | | | 33°27' | np | 1.549 | | 1824 | 3 | 340 | ζ Sagittæ | H&S 307 | 19 | 41 | 18°43'N | 44°32' | np | 8.818 | | 1824 | 3 | 342 | α Aquilæ | H&S 308 | 19 | 42 | 8°24'N | 55°48' | np | 2.3375 | | 1826 | 1 | 238 | II. 95 | S...727 | 19 | 43 | 0°2N | 26°42' | np | 5.587 | | 1826 | 1 | 239 | III. 112 | S...728 | 19 | 43 | 43°55'N | 70°23' | sf | 10.415 | | 1824 | 3 | 343 | 57 Aquilæ | H&S 309 | 19 | 45 | 8°42'S | 81°8' | sf | 36.158 | | 1824 | 3 | 344 | STRUVE, 64 | H&S 310 | 19 | 45 | 19°53'N | 58°30' | np, sf | 42.427 | | 1824 | 3 | 345 | ε Draconis | H&S 311 | 19 | 49 | 69°48'N | 85°21' | np | 2.590 | | 1824 | 3 | 346 | ψ Cygni | H&S 312 | 19 | 51 | 51°58'N | 88°0' | sp | 4.321 | | 1826 | 1 | 240 | Nova; A and B | S...729 | 19 | 52 | 35°3'N | 25°47' | np | 4.318 | | | | | A and C | | | | | 34°12' | sp | 2.884 | | 1826 | 1 | 241 | nf χ Sagittæ | S...730 | 19 | 52 | 17°7'N | 74°10' | nf | 55.931 | | 1826 | 1 | 241 | Nova | S...731 | 19 | 53 | 46°5'N | 63°24' | sp, nf | 5.992 | | 1824 | 3 | 348 | I. 96 1 and 2 | H&S 313 | 19 | 50 | 35°32'N | 86°52' | sf | 2.407 | | | | | I and 3 | | | | | 59°29' | np | 41.335 | | 1824 | 3 | 349 | H. C. 16; 1 and 2 | H&S 314 | 20 | 0 | 35°18'N | 30°58' | np | 10.793 | | | | | I and 3 | | | | | 61°48' | nf | 16.523 | | 1824 | 3 | 351 | Nova | H&S 315 | 20 | 0 | 35°17'N | 33°26' | sp | 20.164 | | 1824 | 3 | 352 | Nova | H&S 316 | 20 | 0 | 35°7'N | 54°3' | np | 9.479 | | 1826 | 1 | 243 | Nova | S...732 | 20 | 0 | 20°36'N | 71°0' | np | 4.518 | | | | | Nova | S...733 | 20 | 2 | 34°57'N | 32°48' | np | 5.355 | | 1826 | 1 | 244 | II. 70 | S...734 | 20 | 2 | 16°16'N | 75°24' | nf | 6.605 | | 1826 | 1 | 244 | V. 136 | S...735 | 20 | 2 | 0°40'S | 67°43' | sp | 54.670 | | 1826 | 1 | 245 | θ Sagittæ A and B | S...736 | 20 | 2 | 20°22'N | 57°58' | np | 11.777 | | | | | A and C | | | | | 43°11' | i | 10.088 | | 1826 | 1 | 247 | Nova | S...737 | 20 | 2 | 20°25'N | 39°24' | sf | 41.069 | | 1824 | 3 | 353 | II. 96 | H&S 317 | 20 | 3 | 0°19'N | 61°48' | sp | 4.100 | Sir W. H. has no measures of this star. Changed + 4°50' in Pos.; Dist. unaltered. Changed + 5°56' in Pos. Unchanged. Probably unchanged. Probably annual motion = + 0°148. Unchanged. Probably a slow change of Pos. Probably unchanged. Probably a slow change in Pos. Micrometer read off incorrectly; should Epoch 1825.61. Unchanged. Binary? mean motion. Common proper motion. No sensible variation. Unchanged. Probably unchanged. Pos. unchanged. Hardly changed in Pos. Probably unchanged. Unchanged. Distance unchanged. Posit. not given by Sir W. H. Perhaps a slow change in Pos. | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|-------|------|------------------|---------------------|-------|-------|-----------|-----------|-----------|----------| | 1826 | 1 | 247 | H. C. 297 | S. . . . . . . 738 | 20 | 4 | 33° 7' N | 22° 15' | sf | 41.862 | | | | 248 | Nova | S. . . . . . . 739 | 20 | 5 | 6° 33' S | 39° 26' | nf | 25.116 | | | | 249 | P. XX. 43; 44 | S. . . . . . . 740 | 20 | 5 | 6° 4' N | 77° 11' | sp, nf | 43.893 | | | | 354 | H. C. 182 | H & S 318 | 20 | 0 | 4° 2' S | 36° 33' | sp | 14.491 | | | | 249 | Nova; A and B | S. . . . . . . 741 | 20 | 7 | 21° 45' N| 86° 13' | nf | 6.439 | | | | | A and C | | | | | 60° 12' | sf | 57.325 | | 1824 | 1 | 355 | α Capricorni | H & S 319 | 20 | 8 | 13° 3' S | 21° 26' | np | 12.999 | | | | 250 | o² Cygni | S. . . . . . . 742 | 20 | 8 | 46° 12' N| 83° 53' | sf | 46.393 | | | | 413 | ε Capricorni | H & S 380 | 20 | 9 | 19° 40' S| 86° 27' | sf | 53.704 | | | | 251 | 32 Cygni | S. . . . . . . 743 | 20 | 10 | 47° 10' N| 85° 34' | sf | 28.496 | | | | | Nova | S. . . . . . . 744 | 20 | 11 | 12° 28' N| 52° 51' | np | 28.383 | | 1826 | 1 | 252 | β Capricorni A and B | S. . . . . . . 745 | 20 | 11 | 15° 21' S| 2° 54' | sp | 23.715 | | | | | A and C | | | | | 43° 40' | sf | 40.716 | | | | 253 | H. C. 240 | S. . . . . . . 746 | 20 | 12 | 45° 4' N | 43° 28' | sp | 8.915 | | | | 355 | I. 95 | H & S 320 | 20 | 14 | 54° 48' N| 09° 39' | np | 3.980 | | | | 259 | Nova; A and B | S. . . . . . . 747 | 20 | 14 | 15° 50' N| 61° 40' | sf | 39.745 | | | | | B and C | | | | | 17° ± | nf | 13 ± | | | | 356 | x Cephei | H & S 321 | 20 | 15 | 77° 10' N| 38° 4' | sf | 8.138 | | | | 379 | S. Re-exam. | | | | | 36° 24' | sf | 7.871 | | 1826 | 1 | 254 | H. C. 176 | S. . . . . . . 748 | 20 | 18 | 13° 44' S| 23° 25' | nf | 23.803 | | | | 255 | P. XX. 149 | S. . . . . . . 749 | 20 | 18 | 2° 42' S | 80° 35' | sp | 59.872 | | | | 358 | ε Capricorni VI. 29 | H & S 322 | 20 | 19 | 18° 24' S| 60° 45' | sf | 58.021 | | | | 359 | I. 51 | H & S 323 | 20 | 20 | 18° 24' S| 87° 17' | sf | 4.026 | | | | 361 | 0 12 Capricorni | H & S 324 | 20 | 20 | 19° 10' S| 30° 17' | sp | 22.060 | | | | 255 | Nova | S. . . . . . . 750 | 20 | 22 | 25° 48' N| 54° 13' | np | 6.711 | | 1826 | 1 | 256 | 15 Bode Delphin | S. . . . . . . 751 | 20 | 22 | 10° 45' N| 13° 35' | nf | 14.689 | | | | 257 | H. C. 537 | S. . . . . . . 752 | 20 | 22 | 18° 48' N| 18° 38' | np | 45.377 | | | | 362 | 37 Bode Cephei | S. . . . . . . 753 | 20 | 22 | 56° 3' N | 29° 38' | sf | 26.446 | | | | 258 | Nova | S. . . . . . . 754 | 20 | 23 | 10° 35' N| 14° 22' | sp | 15.484 | | | | | | | | | | 25° 53' | np | 25.074 | | 1826 | 1 | 258 | 210 Bode Cygni | S. . . . . . . 755 | 20 | 25 | 48° 37' N| 8° 49' | np | 1.387 | | | | 259 | w³ Cygni | S. . . . . . . 756 | 20 | 26 | 48° 37' N| 49° 1' | np | 55.791 | | | | 260 | Nova | S. . . . . . . 757 | 20 | 26 | 27° 31' N| 31° 33' | np | 4.468 | | | | 261 | H. C. 114 | S. . . . . . . 758 | 20 | 28 | 13° 21' S| 73° 49' | sp | 10.256 | | | | 261 | IV. 92; A and B | S. . . . . . . 759 | 20 | 28 | 14° 8' N | 19° 58' | sf | 25.083 | | | | | A and C | | | | | 52° 55' | sp | 54.299 | | 1826 | 1 | 362 | Nova | H & S 326 | 20 | 32 | 38° 5' N | 88° 43' | np | 9.478 | | | | 262 | H. C. 106 | S. . . . . . . 760 | 20 | 34 | 12° 6' N | 3° 0' | nf, sp | 9.194 | | | | 263 | Nova | S. . . . . . . 761 | 20 | 37 | 23° 17' N| 61° 56' | np | 2.049 | | | | 263 | 52 Cygni | S. . . . . . . 762 | 20 | 37 | 30° 4' N | 69° 31' | nf | 7.202 | | | | 363 | γ Delphini I and 2| H & S 327 | 20 | 38 | 15° 29' N| 3° 43' | np | 12.317 | | | | | 1 and 3 | | | | | 78° 35' | nf | 20.857 | | 1826 | 1 | 264 | H. C. 177 | S. . . . . . . 763 | 20 | 38 | 18° 51' S| 25° 6' | np | 16.749 | | | | 264 | II. 66 | S. . . . . . . 764 | 20 | 38 | 15° 14' N| 84° 59' | np | 4.979 | | | | 266 | λ Cygni | S. . . . . . . 765 | 20 | 40 | 35° 50' N| 14° 29' | sf | 25.590 | | | | 266 | Nova | S. . . . . . . 766 | 20 | 42 | 5° 46' N | 69° 31' | np | 3.998 | | | | 267 | II. 100 | S. . . . . . . 767 | 20 | 43 | 51° 17' N| 15° 24' | nf | 4.499 | | 1826 | 1 | 268 | P. XX. 355 | S. . . . . . . 768 | 20 | 44 | 6° 40' N | 54° 44' | sf | 40.598 | | | | 364 | e Equulei | H & S 328 | 20 | 50 | 3° 36' N | 10° 39' | nf | 12.374 | | | | 268 | Nova | S. . . . . . . 769 | 20 | 50 | 15° 47' N| 14° 2' | sp | 14.987 | | | | 269 | 280 Bode Cygni | S. . . . . . . 770 | 20 | 53 | 49° 46' N| 57° 9' | nf | 2.449 | | | | 270 | Nova | S. . . . . . . 771 | 20 | 55 | 6° 30' S | 78° 20' | sp | 3.227 | | 1826 | 1 | 271 | Nova | S. . . . . . . 772 | 20 | 56 | 2° 51' N | 59° 31' | sf | 3.613 | | | | 272 | Struve, 704 | S. . . . . . . 773 | 20 | 57 | 34° 44' N| 59° 54' | nf | 23.249 | | | | 365 | 61 Cygni | H & S 329 | 20 | 59 | 37° 52' N| 5° 19' | nf | 15.425 | | | | 381 | S. Re-exam. | | | | | 3° 4' | nf | 15.444 | | | | 272 | Nova | S. . . . . . . 774 | 20 | 59 | 33° 26' N| 47° 9' | sp | 14.324 | | | | 273 | II. 97 | S. . . . . . . 775 | 21 | 1 | 29° 29' N| 45° 12' | np | 3.576 | Binary; mean mot. + 0°.730. Epoch 1825.70. Unaltered. | Vol. | Part. | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position | Quadrant. | Distance. | Remarks | |------|-------|------|------------------|---------------------|------|-------|----------|-----------|-----------|---------| | 1826 | I | 273 | STRUVE, 709...... | S....776 | 21 | 2 | 43 N | 30 | np | 17.685 | | | | 274 | 1789.213......... | S....777 | 21 | 2 | 26 N | 32 | np | 6.825 | | | | 275 | Nova............. | S....778 | 21 | 2 | 50 N | 5 | sp, nf | 3.687 | | | | 276 | STRUVE, 710...... | S....779 | 21 | 2 | 38 N | 79 | nf' | 54.785 | | | | 276 | Nova............. | S....780 | 21 | 2 | 16 N | 58 | nf', sp | 2.933 | | | I | 277 | 19 BODE Equulei.. | S....781 | 21 | 4 | 28 N | 82 | np | 3 | | | | 278 | δ Equulei........ | S....782 | 21 | 6 | 17 N | 48 | nf' | 26.240 | | | | 279 | H. C. 197........ | S....783 | 21 | 7 | 23 N | 82 | sf' | 4.837 | | | | 280 | Nova............. | S....784 | 21 | 11 | 48 N | 84 | sp | 2.642 | | | | 281 | STRUVE, 718...... | S....785 | 21 | 13 | 15 N | 26 | sf', np | 6.641 | | | I | 281 | 327 BODE Cygni... | S....786 | 21 | 13 | 19 N | 32 | np | 48.739 | | | | 282 | 1 Pegasi......... | S....787 | 21 | 14 | 3 N | 40 | np | 36.861 | | | | 283 | H. C. 197........ | S....788 | 21 | 14 | 20 S | 6 | nf' | 36.784 | | | | 283 | Nova............. | S....789 | 21 | 18 | 56 N | 56 | sf' | 3.480 | | | | 284 | 69 Cygni......... | S....790 | 21 | 18 | 33 N | 11 | sp | 49.305 | | | I | 284 | Nova............. | S....791 | 21 | 20 | 19 N | 68 | np, sf | 1.195 | | | | 285 | Nova............. | S....792 | 21 | 24 | 2 N | 79 | sp, nf | 4.321 | | | | 285 | Nova............. | S....793 | 21 | 25 | 56 N | 41 | np | 2.580 | | | | 369 | β Cephei......... | H&S 330 | 21 | 26 | 46 N | 19 | sp | 13.163 | | | | 370 | 3 Pegasi......... | H&S 331 | 21 | 28 | 48 N | 78 | np | 39.525 | | | I | 286 | Nova............. | S....794 | 21 | 31 | 35 N | 72 | sf' | 8.172 | | | | 287 | III. 71.......... | S....795 | 21 | 33 | 41 N | 31 | sf' | 11.945 | | | | | A and B.......... | | | | | | np | 19.383 | | | | | A and C.......... | | | | | | nf' | 5.645 | | | | 288 | 70 Cygni......... | S....796 | 21 | 34 | 39 N | 40 | sp | 12.150 | | | | 288 | III. 72.......... | S....797 | 21 | 35 | 46 N | 33 | nf' | 18.514 | | | | 289 | 3 Pegasi......... | S....798 | 21 | 35 | 3 N | 52 | np | | | | I | 370 | μ Cygni .......... | H&S 332 | 21 | 36 | 56 N | 23 | sf' | 5.744 | | | | | 1 and 2.......... | | | | | | nf' | 37.401 | | | | 289 | 79 Cygni; A and B.| S....799 | 21 | 36 | 29 N | 30 | np | 33.170 | | | | | A and C.......... | | | | | | nf' | 50.8 | | | | 373 | 145.74........... | H&S 333 | 21 | 46 | 55 N | 20 | sf' | 22.052 | | | | 374 | 145.57........... | H&S 334 | 21 | 46 | 59 N | 76 | sp | 20.308 | | | | 375 | III. 74.......... | H&S 335 | 21 | 49 | 6 N | 33 | nf' | 10.093 | | | I | 375 | Near III. 74..... | H&S 336 | 21 | 49 | 6 N | 44 | sp | 45.858 | | | | 290 | 1789.213......... | S....800 | 21 | 49 | 45 N | 55 | sf' | 2.836 | | | | 291 | H. C. 571........ | S....801 | 21 | 52 | 51 S | 30 | sf' | 20.453 | | | | 291 | 29 Aquarii....... | S....802 | 21 | 53 | 49 S | 26 | sp | 4.370 | | | | 292 | Nova............. | S....803 | 21 | 57 | 48 N | 7 | sp, nf | 3.288 | | | I | 376 | ξ Cephei......... | H&S 337 | 21 | 58 | 45 N | 23 | np | 5.817 | | | | 292 | 1789.218......... | S....804 | 22 | 0 | 20 N | 83 | sf' | 16.666 | | | | 293 | Nova............. | S....805 | 22 | 0 | 45 N | 22 | nf' | 12.774 | | | | 370 | P. XXII. 11.12... | H&S 338 | 22 | 3 | 25 N | 45 | np | 22.094 | | | | 377 | 145.56........... | H&S 339 | 22 | 4 | 53 S | 30 | sf' | 5.170 | | | I | 293 | 180 BODE Cephei.. | S....806 | 22 | 4 | 58 N | 12 | nf' | 13.567 | | | | 294 | Nova............. | S....807 | 22 | 6 | 41 N | 21 | sf' | 1.794 | | | | 378 | 145.120.......... | H&S 340 | 22 | 7 | 17 N | 15 | sp | 14.839 | | | | 378 | 1 Lacertæ....... | H&S 341 | 22 | 8 | 51 N | 78 | sp | 15.619 | | | | 382 | S. Re-exam....... | | | | | | nf' | 15.732 | | | | 379 | 33 Pegasi........ | H&S 342 | 22 | 15 | 56 N | 75 | np | 56.045 | | | I | 370 | STRUVE, 751...... | H&S 343 | 22 | 16 | 50 N | 2 | sf' | 3.723 | | | | 295 | Nova............. | S....808 | 22 | 16 | 5 N | 64 | sf' | 6.457 | | | | 381 | 145.64........... | H&S 344 | 22 | 17 | 27 N | 0 | nf' | 4.238 | | | | 382 | 53 Aquarii....... | H&S 345 | 22 | 17 | 39 S | 3 | np | 10.032 | | | | 383 | 5 Aquarii........ | H&S 346 | 22 | 20 | 57 S | 89 | sp | 4.989 | | | | 383 | S. Re-exam....... | | | | | | nf' | 4.014 | Annual mot. = -0°838 in Pos. & +0°154 in Dist. No notable change. Perhaps a very slow change of Pos. Change of Pos. = -3°51', of Dist. = +0°3. Ch. of Pos. = -4°54' & +0°77" in Dist. Sir W. H. has no measures of this star. Pos. unchanged. Diminished in Distance. Epoch 1824.84. Binary; mean mot. = -0°4484. Epoch 1825.73. | Vol. | Part | Page | Star's Name, &c. | Observer and Number | R. A. | Decl. | Position. | Quadrant. | Distance. | Remarks. | |------|------|------|------------------|---------------------|------|-------|-----------|-----------|-----------|----------| | 1824 | 3 | 385 | δ Cephei | H&S 347 | 22 | 23 | 57° 30' N | sp | 41.612 | | | 1826 | 1 | 295 | Nova | S...809 | 22 | 24 | 6° 31' N | np, sf | 12.897 | | | 1826 | 1 | 296 | H. C. 108 | S...810 | 22 | 25 | 3° 19' N | sf | 14.062 | | | 1824 | 3 | 386 | 8 Lacertæ 1 and 2 | H&S 348 | 22 | 28 | 38° 42' N | sp | 22.674 | | | | | | | | | | | sf | 22.520 | | | | | | | | | | | np | 21.175 | | | 1826 | 1 | 296 | STRUVE, 758 | S...811 | 22 | 29 | 37° 57' N | np | | | | 1826 | 1 | 297 | H. C. 181 | S...812 | 22 | 30 | 13° 28' S | sf, np | 6.011 | | | 1826 | 1 | 297 | 10 Lacertæ | S...813 | 22 | 31 | 3° 7' N | nf | 0.444 | No material change. | | 1826 | 1 | 298 | Nova | S...814 | 22 | 33 | 29° 7' N | np, sf | 18.522 | Unaltered. | | 1826 | 1 | 299 | 12 Lacertæ | S...815 | 22 | 33 | 39° 17' N | nf | 12.073 | | | 1824 | 3 | 387 | 213 BODE Aquar. | H&S 349 | 22 | 34 | 9° 11' S | np | 3.398 | | | 1826 | 1 | 299 | n Pegasi | S...816 | 22 | 35 | 29° 17' N | np | 29.823 | Sir W. H. has no measures of this star. Diff. of Pos. 2° 53'; dimin. of Dist. 5°. | | 1826 | 1 | 300 | τ¹ Aquarii | S...817 | 22 | 38 | 15° O S | sf | 30.556 | | | 1824 | 3 | 388 | 231 BODE Aquar. 1 & 2 | H&S 350 | 22 | 39 | 5° 9' S | sp | 4.349 | | | | | | | | | | | sf | 57.381 | | | | | | | | | | | np | 13.438 | Pos. changed 3° 54'. | | 1826 | 1 | 301 | τ² Aquarii | S...818 | 22 | 40 | 14° 33' S | np | 3.712 | | | 1826 | 1 | 301 | Nova | S...819 | 22 | 41 | 30° 23' N | np, sf | | | | 1826 | 1 | 302 | 1789.219 | S...820 | 22 | 42 | 71° 56' N | np | 0.895 | | | 1824 | 3 | 389 | 16 Lacertæ | H&S 351 | 22 | 48 | 40° 39' N | nf | 4.541 | | | 1826 | 1 | 303 | Nova | S...821 | 22 | 50 | 26° 49' N | nf | 6.850 | | | 1826 | 1 | 303 | Nova | S...822 | 22 | 57 | 32° 26' N | sf | 3.434 | | | 1824 | 3 | 390 | P. XXII. 306 | H&S 352 | 22 | 59 | 31° 51' N | sf | 8.716 | | | 1824 | 3 | 391 | H. C. 242 | H&S 353 | 23 | 2 | 46° 59' N | sp | 14.709 | Sir W. H. gives no measures of this star. | | 1826 | 1 | 304 | 2 Cassiopeïa | S...823 | 23 | 2 | 58° 21' N | sf | 46.683 | | | 1826 | 1 | 304 | H. C. 191 | S...824 | 23 | 2 | 12° 54' S | sf | 4.207 | | | 1826 | 1 | 305 | Nova | S...825 | 23 | 2 | 35° 55' N | np | 5.331 | | | 1826 | 1 | 305 | H. C. 191; A and B. | S...826 | 23 | 5 | 9° 52' S | sf | 26.276 | | | | | | | | | | | sf | 38.168 | | | 1826 | 1 | 306 | ι Aquarii | S...827 | 23 | 6 | 10° 4' S | np | 49.835 | Probably not Sir W. H.'s star. | | 1824 | 3 | 392 | 94 Aquarii | H&S 354 | 23 | 10 | 14° 26' S | np | 14.998 | | | 1826 | 1 | 307 | Nova | S...828 | 23 | 13 | 34° 29' N | sp | 5.117 | | | 1826 | 1 | 308 | P. XXIII. 69 | S...829 | 23 | 14 | 9° 27' S | np | 7.981 | | | 1826 | 1 | 308 | z Piscium | S...830 | 23 | 18 | 0° 16' N | np | 30.090 | Sir W. H. has no measures of this star. | | 1826 | 1 | 308 | STRUVE, 783 | S...831 | 23 | 21 | 4° 17' N | sp | 11.681 | | | 1824 | 3 | 393 | Anonyma | H&S 355 | 23 | 22 | 57° 32' N | p | 13.953 | | | 1826 | 1 | 309 | II. 94 or Nova? | S...832 | 23 | 23 | 42° 50' N | np | 4.389 | Pos. changed probably 6° 42', if II. 94. | | 1826 | 1 | 310 | H. C. 128 | S...833 | 23 | 32 | 5° 17' N | np | 14.575 | | | 1824 | 3 | 393 | 107 Aquarii | H&S 356 | 23 | 37 | 19° 41' N | sf | 5.056 | | | 1826 | 1 | 310 | IV. 107 | S...834 | 23 | 38 | 27° 28' N | nf | 32.248 | Differs 3° 10' from Sir W. H.'s Pos. | | 1826 | 1 | 311 | 20 Piscium | S...835 | 23 | 39 | 3° 46' S | np | 50.924 | | | 1824 | 3 | 394 | 28 BODE Andr. 1 & 2 | H&S 357 | 23 | 43 | 3° 54' N | sp, nf | 5.011 | | | | | | | | | | | sf | 45.941 | | | | | | | | | | | np | 41.297 | | | | | | | | | | | np | 9.361 | | | 1824 | 3 | 395 | Nova | S...836 | 23 | 46 | 30° 52' N | np | | | | 1826 | 1 | 311 | Nova | S...836 | 23 | 49 | 23° 22' N | np | | | | 1824 | 3 | 396 | σ Cassiopeïa | H&S 359 | 23 | 50 | 54° 45' N | np | 2.924 | Doubtful if changed or not. | | 1824 | 3 | 397 | 37 BODE Androm. | H&S 360 | 23 | 51 | 32° 43' N | sp | 5.263 | | | 1826 | 1 | 312 | STRUVE, 794 | S...837 | 23 | 54 | 6° 6' N | nf | 15.427 | Manifestly not Sir W. H.'s star. | JAMES SOUTH. Sloane Street, No. 132, April 12th, 1826.