Observations Made by Mr. Hook, of Some Spots in the Sun, Return'd after they Had Passed Over the Upper Hemi Sphere of the Sun Which is Bid from Us; According as Was Predicted

PHILOSOPHICAL TRANSACTIONS. Novemb. 20, 1671. The CONTENTS. Observations made by Mr. Hook, both of the Solar Spots lately discovered, and the Eclipse of the Moon of Sept. 8, 1671. Some Additions of M. Lister to his former Communications about Vegetable Excrencencies, and Ichneumon Wasps, together with an Inquiry concerning Tarantula's. Predictions of the Visible Appulses of the Moon to, and her near Transits by certain Fixt Stars for A. 1672. An Accompt of some Books: I. SHEEPS BOVWen BESTIER, that is, NAVAL ARCHITECTURE and CONDUCT, in Low-Dutch, by N. Witlen. II. RECHERCHE & OBSERVATIONS sur les VIPERES, par Mons. Bourdelot. III. Admirandorum FOSSILIVM, quae in traditu Hildesheimensi reperiuntur, Descriptio, à D. Frid. Lachmund. IV. De CATHARRHIS, A.R. Lower M.D. V. DELICIAE PHYSICAE Goth. Voigtii. Observations made by Mr. Hook, of some Spots in the Sun, return'd after they had passed over the Upper Hemisphere of the Sun which is hid from Us; according as was predicted. * see Numb. 75, p. 2253. August 30, 1671. I saw a large Spot in the Center of the Sun's face about noon, but had not then time to make any more exact observation thereof. Septemb. 1, at 3 clock I saw the same Spot moved about a quarter of the Diameter of the Sun Westward, and it appeared of this form exactly, that is, it consisted of one greater and two lesser black Spots with a dusky cloud encompassing them: The Diameter of the whole Phænomenon was about \( \frac{1}{7} \) of the Diameter of the Sun, and it was distant from the next adjoining limb, \( \frac{1}{7} \) (that is, exactly one quarter) of the Diameter of the Sun. This I examined and measured several times, and found very exact. So far He. To which we hope we shall be able to add, by another opportunity, what hath been further observed abroad, as well of the second progress of these Spots on the Sun's apparent disque, as of the continuation of their former motion thereon. Observations Observations made by the same, of the late Eclipse of the Moon, the 8th of September 1671. Septemb. 8, 1671. H. 7. 27'½. I first observed the Moon Eclipsed when it began to be enlightened, the total darkness being already past: The shadow passed through the middle of the Spot called by Hevelius M. Porphyrius, half of the said spot appearing without the shadow and the other half being darkened thereby. H. 7. 49'. The shadow passed through the middle of M. Sinai, through the middle of the Easternmost of the three Lakes called Mare Adriaticum, and just touched the ridge of the Apennine Mountains. H. 7. 54'. It passed the middle of the J. Besbicus in the Propontis. H. 8. 0'½. It passed through the streights of the Pontus Euxinus at the Promontories Acherusia and Aristas. H. 8. 6'½. It touched the Palus Maeotis, which Palus Maeotis was then distant from the limb of the Moon next adjacent one third part of its shorter diameter or breadth. H. 8. 17'. The shadow went off the body of the Moon upon the innermost limb-line of Hevelius his large chart of the Moon at the 29 division just without the J. Major of the Caspian Sea. The dusky Penumbra left not the limb of the Moon quite without some kind of darkness, till 8. 29'½; at which time I found that side of the Moon, which the shadow last left, was full as light and clear as the other. About four or five minutes after, the shadow was gone off, I perceived a faint representation of Colours upon that part of the body of the Moon, which was most affected with the Penumbra somewhat resembling the colours of a faint Halo about the Moon; this grew fainter and fainter, and after a few minutes was no more visible. It did not seem to be caused by any clouds or exhalations in the Air, the sky near the Moon being very clear, and the said colours not appearing anywhere, but upon the dusky part of its Phasis. Possibly it might be caused by the Refraction of the light from the Sun through the Atmosphere about the Earth. LUNÆ ad FIXAS Appulsus Visibiles, nec non arctiores juxta eas Transitus, observabiles A.1672: Prædicti, &c ad Meridianum Latitudinemque Londini, è Tabulis Carolinis accuratè supputati à Joh. Flamstedio Derbiensi-Anglo. **FIXARUM Nomina, Locii, Latitudines &c Magnitudines, quibus vel corporales Appulsus vel propinquiores Transitus habet LUNA Anno 1672, de mente & placitis Autoris Carolini, sunt;** | Fixarum Nomina | Loci | Lat. | Mag. | |----------------|------|------|------| | In Lino Australi & Lucidior. 3°m precedens | 9° 34' 48" | 2° 11' Bor | 4 | | Media & lucida Pleiadum | 8° 25' 19' 48" | 4° 0 | 3 | | 2° Bor. inter pedes II. & Erichtonium | 11° 23' 54' 48" | 4° 6 | 4 | | Borea praecedentium in □ Cancri | Ω 44' 48" | 3° 31' | 5 | | Asellus boreus | Ω 2° 52' 48" | 3° 8 | 4 | | Car Leonis, Regulus | Ω 25' 12' 48" | 2° 26' | 1 | | In sinistra axilla Leonis | Ψ 1° 43' 48" | 0° 8 | 4 | | Media in pede Leonis | Ψ 16° 52' 48" | 0° 33' Au | 4 | | Media sequens sub brach. sinistro in infer. | ≈ 1° 34' 18" | 3° 23' | 5 | | Australis trium in fronte m lucidior | m 28° 19' 48" | 5° 22' | 3 | | Que Cor m sequitur ad Austrum | 7° 6' 48' 48" | 5° 50' | 4 | | Septentrionalis trium in ventre vs | 8° 8' 13' 48" | 3° 1 | 5 | | Duarum lucidarum in Cauda praecedens | 17° 9' 48" | 2° 26' | 3 | | Sequens | 8° 55' 48" | 2° 23' | 3 | | Que ad Clunes Aquarii | 24° 8' 48" | 2° 0 | 6 | | In effusione aquae iii succedens Australis | 7° 0' 48" | 0° 19' | 4 | Anno 1672. Januar. 4. post medium noctem sequentem Luna teget stellam superioris Tabella 5°m, Asellum boreum, cujus sub illa p.m. h. Immersio 13° 33' 43". Latit. *° Immers. 6° 0° Emerso 14° 32' 30". Luna in Emerso 10° 41' 3° Mora 0° 58' 17'. Uuu 2 Januar. Januar. 27. Sub Occasum Solis Pleiades affequitur; ejus phaenomeni phares tui succedunt ordine; | h. | p.m. 3. 46. 48. | Occidentalis lucidior subripitur— | |----|----------------|----------------------------------| | | 5. 2. 12. | Endem eluittatur—— | | | 5. 4. 54. | Media & lucida subtegitur—— | | | 5. 48. 30. | Infima occidentalis proxima abscond. | | | 6. 0. 20. | Sequens borealior absconditur—— | | | 6. 13. 0. | Orientalis superior occupatur—— | | | 6. 15. 30. | Media & lucida remittitur—— | Occidentalem, borealorem, & orientalium lucidorem Luna, juxta numeros Carolinos, illibatas præterit. Insimne, sequentis Borealioris, & Orientalis superioris obtæctiones (factæ modo de Schemate, e recentibus propriis Observationibus delineato, probabiliter aliquà conjectura) dispositi; quarum Emeriones, haud multo sperem) incommodo omissas, catum judum si fuerit, sidi Cælestipes observare ne graventur, dum ipsæ hujus Asterismi stellas iterum dimentor, quo accuratiora de Phaenomenis futuris, Luna per eas transcensius pronunciare possim. Februari. 10. Post med. noctem sequentem, vel potius Febr. II. mane, abscondes Luna Stellam 11am Tabellæ; ejus erit horis diei 11am matutinis, | h. | Sub ingressus 3. 52. 39. | * Lat. à Centro | |----|--------------------------|----------------| | | Emer. 4. 45. 39. | Luna in | | | Mora sub D | Exitu 1. 3. | Maïi 2. Post med. noct. sequentem, vel Maïi 3. mane, Luna eandem stellam rursus tegit, que horis matutinis diei 3am habet | h. | Obligationem 2. 59. 29. | * Lat. à Centro | |----|-------------------------|----------------| | | Retentionem 4. 1. 46. | Ingr. 2. 6. | | | Durat. sub Da 1. 2. 17. | Junii 18. Sole ipso in meridie culminante, Luna Regulum seu Cor Æsteliam Tabulæ 6am, Austrino limbo occupabit: Quod quidem phaenomenon ab plenam dici lucem inobservabile prospers credideram, ac sane ut tale omissum, ni monstrisset Clar. Oldenburgius, comperisse Dn. Hook, etiam Diurnos Lunæ ad Fixas maiores appulsus, methodo ipsi explorata esse observabiles. vabiles, taliumque Apparentiarum, si quando acciderent, premonitiones identidem efflagitasset. Nactus igitur hoc Phenomenon (quo vel melius, ut infra patebit e Synopsi, vel celebrius à Luna neguit unquam obvenire.) Ingeniosissimo Micrographo hanc ejusdem premonstrationem, gratitudinis ergo dicatam habere, idque ipsi praeteritis, qui observandi callent methodum, observandum committere velim. Reguli seu Basilisci dant Tabula, p.m. Occultationem 0.11.0. Lat. * a Centro Occult. 15.48. Aust. Retentionem 0.20.0. in Retecit. 12.12. Mora sub D 0.9.0. Cordis ad Centrum iproxima appropinquatio est 15'.39" Luna seni diameter apparenis modo 15'.49", ita ut 10 crup. secundos duntaxat à limbo Lune, medìa Eclipse, dista futura sit Stella: Unde, si aliqua obseriat Cali a Numeris discrepantia, facillimè idipsum Observatorii innutefecit. Julii 2. Luna in ≈ 24 gr. Stellam teget 15am Tabula nostra cuius videatur sub Luna h. Incurvis 12.49.19. Lat. * a Centro Incurvis 0.57. B. Exitus 13.59.26. in Exitu 4.52. A. Mora 1.17.7. Julii 23. Luna rursus appellit ad Stellam 11am, quam abscindet h. 10'. 12'.26".p.m; lat. * sum a centro D° 10'.3". B; prius tamen sub horizonte mergetur quam liberet stellam; cujus propterea Emerfio Americanis conspicienda nobis exspectanda non est. Julii 28. Poft med.nost.sequentem sed Jul.29 mane. Luna in ≈ 8 gr. al-fondet Stellam Tabulae 12am, cujus erit horis matutinis, diei sc. 29, cum Luna h. Congressus, 1.29.6. manè Lat.* a Centro Sub-ingr.8.40. Sejunctio ad D 2.32.4. Luna in Emerf. 2.25. B. Mora sub D 1.2.53. Julii 29. Nonnum elapsis horis 20. a priori Occultatione, Luna in ≈ 18.gr! subripiet Stellam Tabulae 14am; cujus erit Sub-ingressus 8.32.26. Lat.* a Centro Ingr. 0.25. Aust. Emerfio 9.59.0. in Emerf. 3.54. Mora sub D 1.6.43. gr. Augusti 12. Vesperi Solem in ≈ 0.11.44. Luna teget: Eclipse erit p.m. Initium 5.30.16. Max.Obscur. 6.6.47. Appar. Syzygion 6.11.39. Finis 6.43.20. Duratio 1.13.4. Digiti, summà Eclipse dig. deficientes 3.8½. Octob. Octob. 23. Vesperi Luna in V 9, jungitur Stella 1°; ejus crit Occultatio 8. 19. 23 (Lat. *° à Centro) Ingr. 2. 6. Retectio 9. 32. 43. Luna in Retect. 8. 39. Aust. Mora sub D 1. 13. 20. Octob. 23. Vesperi Luna in II 24.gr, occultabit Stellam Tabulae 3°; ejus sub Lunam Subingressus 9. 21. 8. Lat. *° à Centro Subing. 5. 52. Egressus 10. 25. 0. Luna in Egress. 5. 15. Mora sub D 1. 3. 52. Novemb. 17. Luna vesperi in X 7.gr, conteget Stellam Tabulae 26°; quam Abscondet 6. 25. 42. Lat. *° à Centro Occulti. 6. 15. Remittet 7. 23. 25. Luna in Retect. 12. 42. Retinet 0. 57. 43. Decemb. 22. Luna in II 24. gr. cum Stella Tabulae 5°; ejus cum Luna Congressus 7. 28. 33. Lat. *° à Centro Congr. 6. 5. Sejunctio D 8. 31. 0. Luna in Sejunct. 2. 20. Mora sub ea 1. 2. 27. Preterea Februari. 23. paulo ante medianam noctem; Augusti 3. post sequentem medianam noctem; Octobr. 26. ipsa media nocte; Et Decemb. 20. post medianam noctem; Luna aliquas è Pleiadibus cooperiet; de quibus tamen Occultationibus certi aliquid constituere in praesenti minime audeo; eo negotio in aliud tempus (quando scil. de earum distantia & locis, quorum jam observandorum satago, res certa mihi innoverit; quod brevi fore spes est,) dilato. Interea Lunae juxta Fixas aliquas Transitus artificios hic adjungam, quos vigilii nostris haud minus dignos, ac Occultationes, arbitror. H. Januar. 4—10. 19. 39. 217. 47. in conf. *° 4° cum Lat. 23. 58. Aust. 7—18. 34. 23. 21. 3. in ant. *° 7° cum Lat. 17. 57. Aust. Februar. 25—12. 13. 22. 14. 20. in ant. *° 3° cum Lat. 25. 59. Bor. Martii 2—13. 5. 30. 4. 11. in ant. *° 8° cum Lat. 22. 35. Aust. Martii 4—10. 51. 11. 11. 48. in conf. *° 9° cum Lat. 23. 4. Bor. 26—13. 33. 11. 14. 26. in conf. *° 5° cum Lat. 28. 20. Aust. Augusti 25—14. 47. 23. 23. 52. in ant. *° 13° cum Lat. 11. 33. Aust. Septemb. 8—16. 6. 7. 8. 12. in conf. *° 7° cum Lat. 26. 0. Aust. Octob. 19—7. 37. 37. 30. 30. in ant. *° 13° cum Lat. 14. 20. Bor. Novemb. 1—17. 44. 7. 13. 45. in conf. *° 6° cum Lat. 20. 9. Aust. Prolixiorum Prolixiorum adeo supputationum proventu ita strictim exhibitis, refert, ut ordine quo sibi succedant phænomena recensent: Quod dum praestium eo, Luna simul motus, e Tabulis ad data tempora exquisitos, una eademque Synopsis adiungam, eo scil. sine ut ulter eam insipientibus Astrophilis cum qualitatis tum usus commodis cupique Apparentia, quatenus scil. vel quomodo Luna inserviat Motibus limandis, innotescant. | Temp.apparatus Londini | Animalia media | Aquata | Alg.Latii | Parall.Horiz.Horos.Alat. | Alg.Paral. | |------------------------|---------------|--------|-----------|--------------------------|------------| | d. h. | s. o. | s. o. | s. o. | gr. | 0. | | Jan. 4 19 39 | 7 27 42 57 | 6 5 40 46 | 4 12 57 54 | 15 48 24 | 1 52 49 62 14 | | Jan. 13 39 38 | 7 29 31 51 | 6 7 27 44 | 4 4 15 4 53 58 23 | 15 47 24 | 6 49 50 84 24 | | Jan. 7 18 34 23 | 9 11 24 7 | 7 17 15 60 | 6 0 32 5 53 42 14 | 15 47 24 | 5 24 51 80 59 | | Feb. 10 15 53 34 | 5 25 4 50 | 3 7 46 54 | 2 7 30 47 63 | 54 17 15 | 17 57 14 73 3 | | Feb. 25 12 13 22 | 6 18 2 54 | 3 6 32 5 | 3 8 38 30 63 | 4 17 12 | 22 35 45 19 | | Mart. 2 13 5 30 | 9 6 53 30 | 5 23 23 24 | 6 1 23 19 56 | 18 15 13 | 7 11 43 84 17 | | Mart. 4 10 51 11 | 1 47 48 | 6 15 57 54 | 6 27 24 19 55 | 45 15 4 m 18 | 26 53 45 59 | | Mai. 25 15 12 | 11 24 31 42 | 6 14 6 35 | 8 25 57 45 52 | 42 14 15 | V 22 6 97 54 | | Jun. 17 23 57 19 | 8 c 50 0 | 1 14 48 28 | 5 16 53 31 57 | 55 15 38 | 5 35 40 34 45 | | Jul. 2 13 5 58 | 2 10 57 21 | 7 3 32 52 | 11 17 15 24 55 | 56 15 8 II 12 | 22 11 32 9 | | Jul. 23 10 5 37 | 11 13 43 50 | 3 24 51 52 | 8 28 5 54 56 | 57 13 45 4 | 3 55 76 2 | | Aug. 28 14 15 | 3 1 21 19 15 | 2 22 44 33 | 11 1 15 45 3 | 47 14 3 | 21 9 55 50 27 | | Aug. 29 8 45 | 8 1 23 51 | 6 1 4 11 11 11 | 54 18 54 43 14 47 | V 12 8 31 78 57 | | Aug. 5 18 14 | 8 2 25 44 | 11 29 45 29 | 5 23 33 18 58 | 28 59 48 19 | 15 53 72 7 | | Sept. 25 14 47 | 23 1 27 55 | 5 4 35 9 11 10 27 | 3 55 18 14 57 | 15 c 45 52 29 | | Oct. 8 16 6 | 7 8 0 31 11 | 4 39 24 5 27 42 | 2 59 45 16 9 mp 8 | 1 9 13 57 53 | | Oct. 19 7 37 37 | 1 21 57 17 | 3 11 29 51 11 13 35 54 52 29 14 11 51 | 1 9 13 57 53 | | Nov. 23 8 33 16 | 13 42 42 52 | 4 29 42 35 | 1 5 25 14 55 27 15 16 5 17 41 52 33 33 | | Nov. 28 10 3 5 | 5 2c 51 19 | 7 5 22 59 3 22 42 27 62 | 8 16 48 7 7 55 45 3 48 | | Dec. 1 17 44 | 7 7 17 17 20 | 9 2 25 2 5 22 53 37 61 | 16 16 33 1 1 52 47 56 59 | | Dec. 17 6 13 3 | 2 10 4 6 | 3 2 48 4 0 5 38 25 57 | 17 14 56 5 9 29 56 59 44 | | Dec. 22 8 36 38 | 5 18 42 13 | 5 12 48 49 3 23 30 25 61 | 16 29 mp 53 37 31 57 | Taceo de Phæsi Lunæ in Umbribis Terræ patientis, quippe de qua plus satius Astrologi. Interim hoc fideliter supposita & indigitata Phenomena cum illustrißime Regiæ Societati, tum, Ipsius Auspicio, omnibus aibi Cælorum studiis imperante commendo: quibus amplissimum Scientiae incrementum, perennes studiorum profectus, Calumque imprimis his observationibus peragere, sic omnino propitium animus excepto.