Eclipsis Lunae Totalis Cum Morâ, Anno 1682, die 21 & 22 Feb. vesp.& mane st.n. Observata Gedani à Joh. Hevelio

ECLIPSIS LUNÆ Totalis cum morâ, Anno 1682, die 21 & 22 Feb. vesp. & mane st.n. OBSERVATA GEDANI à JOH. HEVELIO. | Tempus sec. | Ordo borol ambul. | Phaenum | Digitii Eclipt. | Altitudines Stellarum | Per quas Maculas transuerint umbrae Sectiones, & que insuper notata fuerint | Tempus ex altit. Correct. | |-------------|------------------|---------|----------------|------------------------|---------------------------------------------------------------|--------------------------| | h. 1. 11. | | | Palilicii 39°53' | | | h. 1. 11. | | 8 41 18 | | | Palilicii 39°29' | | | 8 40 46 | | 8 44 9 | | | Palilicii 39° | | | 8 44 20 | | 8 48 14 | | | | | | 8 47 59 | | 10 8 28 | | | | | Initium penumbrae dilutissima | 10 9 0 | | 10 12 50 | | | | | Penumbra densior | 10 13 20 | | 10 19 5 | | | | | Penumbra adhuc crassior | 10 19 36 | | 10 23 50 | | | | | Penumbra densissima | 10 24 24 | | 10 24 30 | | | | | Initium Eclipseos circa 150° limbi in 95° sc. à puncto super. lineæ perpendicularis | 10 25 5 | | | | | | | Nonagefimi ortum versus contigit. | | | | | | | | Incedebat per M. Germanicianum, ad Mare Syrticum & Montem Acabe | | | 10 29 40 | | | 1 ½ digitii | | Per M. Porphyriten, loca Paludosa Inf. Cercinne, Sinum Syrticum, per Mont. Sacrum & M. Casium | 10 32 50 | | 30 32 13 | | | 2 ferè | | Ad M. Baronium, Inf. Aethusam, per medium Sinum Syrbonis & M. Pharan | 10 37 10 | | 10 36 30 | | | 3 ½ ferè | | Per Sinum Apollinis, M. Aetnam, Inf. Letoam, ad Inf. Didymam | 10 44 10 | | 10 43 25 | | | 4 ½ | | Ad Inf. Majorcam, Vulcaniam, Lemnos, Carpathos & M. Horeb | 10 48 15 | | 10 47 25 | | | 5 ½ dig. | | Ad Lacrum Nigrum majorem, per M. Argentarium, Sipylum, Masicytum; Tabor, Sinai, & desertum Raphidim | 10 53 10 | | 10 52 20 | | | 6 ½ | | Per scopulos hyperboreos, Inf. Besbycam, M. Olympum, Didynum & M. Anilibanum | 10 56 40 | | 30 55 45 | | | 7 ½ | | Ad Inf. Cyaneam, M. Horminium, M. Uxii & Montes Coibacaranos | 11 1 30 | Tempus | Tempus sec. | Orbis Phasii | Digi. Eclipse | Altitudines Stellarum | Per quas Maculas transversant umbrae Sectiones & qua insuper notata fuerint | Tempus altit. corr. | |------------|-------------|--------------|-----------------------|---------------------------------------------------------------------------|------------------| | h. 11 4 3c | 9 | 8½ | | Per M. Ambonum ad Ins. Apolloniam, & Sinum Atheniensem, per M. Moschum, Ilxii, & Coibacaranos | 11 5 | | 11 9 59 | 10 | 9½ | | Per Lacum Hyperboreum superiorem, Paludem Byzæ, per Montem Herculis, & Sinum extremum Ponti | 11 10 | | 11 13 3c | 11 | 10 dig | | Per Lacum Hyperboreum inferiorem, M. Cimmerium, & ad Sinum inferiorem Maris Caspii | 11 14 | | 11 16 3c | 12 | 10 fere | | Per M. Riphæos, Pal. Maeotidem, Int. Alopeciam, ad Ins. majorem Caspii per M. Nerolum | 11 17 | | 11 19 1c | 13 | 11½ | | Ad Ripam Paludis Maeotidis & Mont. Hippoci | 11 20 | | 11 22 | 14 | 11½ | | Per M. Alanum, & Lacum Occident. minorem | 11 23 | | 11 26 3c | 12 | 12 dig | | Totalis Obscuratio circa 297° limbi in 94° sc. à puncto superi. linea perpendicularis Nonagesimi ortum versus depressa | 11 27 3 | | 11 35 36 | Pollucis 52° 13' | Pollucis 52° 0' | Pollucis 51° 41' | Recuperatio luminis circa 118° limbi in 88° sc. à puncto superiori linea perpendicularis Nonagesimi occasum versus exitit. | 11 37 | | 11 37 35 | Pollucis 52° 0' | Pollucis 51° 41' | | Ad M. Alabastrinum, M. Pentadælylum, M. Audum, & Pal. Maeotidem | 11 38 4 | | 11 38 5c | Pollucis 51° 41' | | | Per M. Porphyritem, ad Mare Syrticum & per M. Eoum | 11 39 3 | | 12 58 2c | die 22 Feb. mane | | | Per M. Baronium, loca Paludosa, Ins. Cerinæ, inter mare Syrticum & Ægyptia cum ad S. Syrbonis. | 11 0 | | 1 o 4c | 15 | ½ dig | | Ad M. Alabastrinum, M. Pentadælylum, M. Audum, & Pal. Maeotidem | 11 2 | | 1 3 35 | 16 | ½ fere | | Per M. Porphyritem, ad Mare Syrticum & per M. Eoum | 11 5 | | 1 8 16 | 17 | 2 fere | | Per M. Baronium, loca Paludosa, Ins. Cerinæ, inter mare Syrticum & Ægyptia cum ad S. Syrbonis. | 11 10 | Ten | pus sec. | Ordo Phasii | Digitii Eclipt. | Altitudines Stellarum | Per quas Maculas transiverint umbrae Sectiones, & quae insuper notata fuerint. | Tempus ex alit. correctionem. | |----------|-------------|----------------|-----------------------|---------------------------------------------------------------------------------|-------------------------------| | 1° 11' | | | | Per Sinum Apollinis, Ins. Taraciniam, Ins. Aethusam, Sinumque Syrbonis | h. 1° 11' | | 11 48 | 18 | 2½ fere | | Ad Ins. Majorcam, per M. Aetnam, M. Neptunum, Jachyntum, Ins. Letoam, Ins. Didymam & M. Lyon | i 13 54 | | 16 20 | 19 | 3½ | | Ad Ins. Corsicam, per Ins. Vulcaniam, & Carpathos, ad mare Mortuum, per desertum Sin | i 18 33 | | 20 50 | 20 | 4½ dig. | | | i 23 6 | | 24 39 | 21 | 5½ dig. | | Ad M. Argentarium, mare Pamphilium, Ins. Cyprum per M. Horminium | i 27 0 | | 26 15 | 22 | 6 fere | | Per Mont. Apenninum, ad Lacum Trasimenum, ad Mont. Sipylum per M. inter. Libanum | i 28 40 | | 28 32 | 23 | 6½ | | Ad M. Carpathos, per Ins. Bessicam, M. Olympum, Didymum & M. Dalangueros | i 31 0 | | 31 12 | 24 | 7½ dig. | | Per M. Perce, Byzantium ad M. Horminium, & per M. Antitaurum | i 33 44 | | 35 59 | 25 | 8½ | | Per Sinum Circiment, Ins. Macram, Ins. Apolloniam, medium Montem Moschum, atque Montes Sogdianos | i 38 37 | | 39 33 | 26 | 9 dig. | | Per Lac. Hyperboreum inferiorem, Pal. Byces, M. Strobilum, per Sin. extremum Ponti ac M. Paropamisum | i 42 15 | | 41 45 | 27 | 9¾ dig. | | Inter Pal. Byces & Lacum Corosondametis, per M. Herculis & M. Caucasum inferiorem | i 44 30 | | 44 19 | 28 | 10 | | Per M. Cimmerium, M. Tancon, & M. Neroenum | i 47 9 | | 47 20 | 29 | 10½ | | Per Pal. Maeotidem, Ins. minorem maris Caspii, Montemque Neroenum superiorem | i 50 14 | | 51 44 | 30 | 11 paul plus. | | Per M. Alanum, M. Sanctum, Montefq; Hippoci | i 54 42 | | 56 12 | 12 dig. | | | Finis circa 294° limbi in 97 sc. graduat puncto superiori linea perpendicularis Nonagesimi occasum verius contigit. | i 59 17 | Tempus | Tempus sec. horol. ambul. | Ordo Phasii | Digiti Eclipt. | Altitudines Fixarum | Per quas Maculas transuerunt umbrae sectiones, & quae in super notata fuerint | Tempus ex altitudine correctione | |--------------------------|------------|---------------|---------------------|---------------------------------------------------------------------------------|--------------------------------| | h. | 1 | | | | | | | 57 | | | | | | | 15 | | | | | | | 30 | | | | | | | 20 | | | | | | | 30 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | **ANIMADVERTENDA** In Eclipse Anno 1682, die 21 Feb. Gedani observatam. Cum Tabula Rudolphina bene notabilem hac die Eclipse, & quidem totalem cum mora ostenderent, quales exquisite observare radialis contingit; proinde summa alacritate ad illam ex mea rursus, DEI Benignitate, erecta spectula, attendi; praeprimis cum coelum omnino sudum excitere, ut quavis exoptatisima hæc in parte mihi pollicerer. Totum igitur diem 21 Febr. impendi, partim ut horologia ad Sciatericum lineæ Meridianæ applicatum dirigerem, atque hic omnia parata haberem, quæ ad ejus generis Observationes requiruntur. Ingente Eclipse umbra erat valde diluta, limbusq; ejus quasi anfractuosus, & minime terminatus, sic ut difficulter admodum ab initio Phases determinari potuerint, nec accurate distingui, per quas Maculas umbra transibat, successu tamen temporis crecente Eclipse, distinctius omnia deprehendebantur. Color a binicio videbatur satiris tritis, obscurus, & fuliginosus, ac si Eclipse, eadem ratione, circa maximam obscurationem, ut illa Anno 1642. mens. April. adeo se obumbratae sistere vellit, quò vis conspiceretur; sed res plane aliter cecidit, squidein Luna cum jam omnino esset eclipsata, totus tamen ejus discus satis clare in oculos incurrebat: color namq; ejus cum omnino rubidus sive sanguineus, aut rubiginosus erat, qui eusq; perseverabat, donec Luna ad medietatem lumen suum recuperasset, atq; tum rursus satis obscura & fuliginosa apparuit; adeò ut omnium optime Phases omnes, per quasnam minium Maculas umbra transi- erit, annotatae fuerint. In summa, hujus Eclipseos observatio ex vo- to nobis succedet; non solum enim Initium & Finem, sed etiam ip- sum momentum totalis Obscurationis, & Recuperationis luminis, cum 30 phasibus (quod rarò admodum contingit) diligentissime mihi deprehendere Coelum induxit. Per quas verò Maculas umbrae se- stiones inceperint, eum quid amplius notatu dignum sub tempore E- clipseos extiterit, ex ipsa observatione atq; delineationibus ad oculum clare patet, non minus ex subsequenti Tabella quoq; Calculis Ro- dolphi ab hâc observatione, atq; sic ab ipso Coelo discedat. | Ex Calculo Rudolphino | Ex Observatione | Differentia | |-----------------------|-----------------|-------------| | Initium Eclipseos. | 10 13 33 | 10 25 5 | 11 32 Tardius | | Totalis Obscuratio. | 11 10 11 | 11 27 30 | 17 19 Tardius | | Maxima Obscuratio. | 0 5 43 | 0 13 49 | 8 6 Tardius | | Recuperatio lumin. | 1 1 15 | 1 0 8 | 1 7 Citius | | Finis Eclipseos. | 1 57 53 | 1 59 17 | 1 24 Tardius | | Mora totalis obscurat.| 1 51 4 | 1 32 58 | 18 26 Brevior | | Tota duratio Eclipseos | 3 44 20 | 3 34 12 | 10 8 Brevior | There There having been several Accounts of this Eclipse inserted in Two succeeding Transactions, it may not perhaps be unfit to mention what Mr. Jacobs an English Merchant now residing at Lisbon, inform'd Mr. Flamsteed in a Letter dated June 15. 1682. That He observed the beginning of it there at $8^h\ 31' \ p.m.$ which gives the difference of Meridians betwixt the Observatoy at Greenwich, and Lisbon, $41\frac{1}{2}$ Minutes of time, or $10^\circ\ 22'$ considerably different from our Mapps and Sea-Charts. OXFORD, Printed by Leonard Lichfield, Printer to the University, and are to be sold by Hen. Rogers at the Sign of the Bible in Westminster Hall, and Sam. Smith at the Princes-Arms in St. Pauls Church-yard. 1683.