{ "id": "4f1ada9673b5957f424a3e16521f12e26a0a2cef", "text": "vel etiam ad foramen annulare, quale ambit circellum Newtonianum Corollariis ultimis Prop. XXXVI. Libr. II. Princip. adhibitum, unde in Resistentia fluidorum continuorum ex hujus circelli contemplatione deducta plura videntur mutanda; quod in antecessum eruditos monere visum est, quo eos ad accuratius praecedentium examen excitarem.\n\nII. A Collection of the Observations of the Eclipse of the Sun, August 4th 1738, which were sent to the Royal Society.\n\n1. An Eclipse of the Sun, observed August the 4th 1738, by Mr. George Graham and Mr. Short, FF. R.S. at Mr. Graham's House in Fleetstreet, London, by a Refracting Telescope of 12 Feet Focus, armed with a Micrometer, and by a reflecting Telescope of nine Inches focal Length.\n\n| Beginning of the Eclipse at | 9. 59. 20 A.M. |\n| End at | 11. 59. 36 |\n| Quantity of Obscuration by the Micrometer | 3. 28. |\n| Duration | 2. 0. 16 |\n\nN.B. The Person who was observing the Transit of the Sun over the Meridian, observed the End to be at the same Instant with the above Observation.\n2. *Eclipsis Solis, Tubo 7 ped. Micrometro D. Graham instructo, d. 4 Aug. paulo post meridiem 1738. Upsaliæ observata à Dno. Andrea Celsio, R. S. Lond. S. & R. S. Suec. Secr.*\n\nTemp. ver.\n\n| h. | \" |\n|----|---|\n| 12. | 18. 52 | Initium eclipseos. |\n| 12. | 35. 57 | Dig. eccl. o. 5 1/4 |\n| 12. | 37. 47 | o. 3 1/2 |\n| 12. | 42. 22 | Finis. |\n| 0. | 23. 30 | Duratio. |\n\nPropter nubes per vices solem obtegentes maximam obscurationem & ceteras eclipseos phases observare non licuit; maximum tamen solis defectum dig. o. 8' h. 12. 30' 37\" accidisse ex hisce observatis deducitur.\n\n3. *Tres Phases Eclipseos Solis partialis Vitembergæ die xv. Augusti St. N. iv. St. Vet. anno c10.10cc.xxxviii. à Jo. Frid. Weidlero, R. S. Lond. Sodal. observatæ.*\n\nEt si propter nubes, quibus tum coelum involvebatur, nec initium, nec finis deliquii spectari potuerit, apparuerunt tamen, distractis subinde venti impetu nubibus, Phases sequentes;\n\nHor.\nHor. Min.\n11. 30. Notata est phasis prima deliquii crescentis, 1 digit.\n12. 19. p.m. visa est phasis altera 2 digit. 30 Minutorum.\n12. 37. Apparuit phasis decrescensis eclipsis tertia.\n\nSpecatæ\nSpectatae etiam sunt eodem tempore maculae in disco Solis decem.\n\nCeterum Lunae discus sub Sole, peripheriam accuratam terminatam, absque ulla inaequalitate, necnon faciem nigerrimam ostendit. Nullum quoque Atmosphaerae orbi Lunae insidentis vestigium potuit deprehendi.\n\nAberravit calculus, ex Tabulis Ludovicianis deductus, quoad magnitudinem & tempus summæ Eclipseos. Magnitudo enim praedicebatur 2 digitorum, 20 minutorum; Medium h. 12. m. 5.\n\n4. Defectus Solis, observatus e specula Bononiensis Scientiarum Instituti die 15 Augusti M.DCC.XXXVIII. mane, referente Eustachio Manfredio ejusdem instituti Astronomo, & R.S. Lond. S.\n\nCum Solis discus per hosce dies maculis pluribus scateret, ipso mane instantis Eclipseos circiter horam 21.30 post meridiem, Eustachius Zanottus, Phil. Doct. Math. Professor publicus, Collega meus, ope micrometri aptati tubo pedum 8, praecipuarum positum investigavit, quae praesertim Australem Solis partem, (qua parte Luna subitura erat) obsidebant; omnes enim describi neque ad rem attinebat, neque per spectatorum turbas licuit. Eas maculas, quarum loca definire potuit, subjectum schema exhibet.\nInitium deliquii non persensi ante horam 22.52.\n25 post meridiem, licet & ego tubo pedum undecim,\n& alii tubis aliis Solis margines diu perlustrâsent.\nOpinor tamen ipsum Luminarium contactum minuto\nsaltem maturius accidisse, quam animadverterim;\nquod ipsum a succedentibus phasibus confirmari vi-\ndetur.\n\nDigitii Ecliptici per circulos in tabella de more\nexaratos, digitorum vero partes æstimatione definitæ\nsunt. Telescopium erat pedum 6. Imago unciarum\n2, aut circiter. Phases emersionis phasibus immersi-\nonis certiores sunt multis de causis.\n\nImmersionis phases. Emerisionis phases.\n\nTemp. ver. Temp. ver.\nh ' \" h ' \"\n23. o. 10 Defectus unius digiti o. 4. 14 adhuc dig. 4\\(\\frac{4}{5}\\)\n11. 20 dig. 2 18. 5 dig. 4\\(\\frac{1}{3}\\)\n23. 56 dig. 3 22. 43 dig. 4\\(\\frac{1}{3}\\)\n35. 14 dig. 4 dub. 31. 50 dig. 4\n45. 14 dig. 4\\(\\frac{1}{3}\\) 39. 13 dig. 3\\(\\frac{1}{2}\\)\n47. 6 dig. 4\\(\\frac{1}{3}\\) 46. 50 dig. 3\n51. 14 dig. 4\\(\\frac{3}{5}\\) 52. 55 dig. 2\\(\\frac{1}{2}\\)\n55. 14 dig. 4\\(\\frac{2}{3}\\) 57. 31 dig. 2\n58. 14 dig. 4\\(\\frac{4}{5}\\) 1. 3. 26 dig. 1\\(\\frac{1}{2}\\)\no. 1. 46 dig. 4\\(\\frac{4}{5}\\) 7. 52 dig. 1\nFinis Eclipseos Tubopedum \\(\\frac{3}{5}\\) hor. 1. 18. 1\nundecim Tubo pedum octo hor. 1. 18. 2\n\nIn-\nInterea maculae Solis a Luna obtectae ac retectae notabantur in hunc modum.\n\nTemp. ver.\nh \"\n23. 3. 50 Macula C Lunam subit, tubo pedum 8.\n21. 3 Macula A delitescere incipit, tubo pedum undecim.\n21. 49 Maculae A centrum occultatur.\n22. 41 Tota sub Luna immergitur.\n23. 54 Duarum Macularum ad B prior immergi incipit.\n25. 10 Ejusdem Maculae centrum latet.\n25. 45 Tota absconditur.\n26. 24 Duarum ad B posterior centro suo Lunæ marginem subit. Haec tenus eodem telescopio pedum undecim.\n27. 2 Macula D abscondi incipit tubo pedum 8.\n23. 31. 2 Tota delitescit eodem tubo.\n0. 31. 45 Macula A apparere incipit in specie Solis per tabellam excepta.\n32. 30 Eadem macula tota cum areola sua emer-\nserat tubo pedum undecim.\n33. 25. Emersio centri prioris duarum ad B eodem:\ntubo.\n34. 59 Totalis emersio ejusdem Maculae eodem\ntubo.\n35. 51. Posterior duarum ad B tota emersebat,\ntubo eodem.\n\nObservationes tam macularum, quam digitorum\neclipticorum habuerunt (praeter Zanottum) Franci-\nscus Vandellius Mutinensis Instit. Scient. Professor,\nThomas\nThomas Perellus Florentinus, M.D. Joseph Rover-\nsus, Petronius Matheucius, Jo. Andreas Boldrinus\nPlacentinus, Salvator Oliva Mediolanensis, atque\nalii. Omnes ex eodem horologio tempora notârunt,\nquae postmodum à meridianis observationibus correc-\nta consignavimus.\n\nVigente Eclipse observavi transitum Lunæ ac Solis\nper planum semicirculi muralis juxta meridianum\nsuspensi.\n\nAd definiendum Lunæ transitum, tempus notavi,\nquo segmentum peregrinum e disco Lunæ in Sole\nconspicuo filo horizontali telescopii subtensum, a ver-\nticali filo bisectum apparuit: tunc enim oportet ipsum\nLunæ centrum in verticali extitisse. Transit autem\ncentrum Lunæ ante centrum Solis secundis horariis\n34. hoc est hora 23. 59. 26 post meridiem diei 14.\nAltitude Meridiana limbi borei Lunæ grad. 59. 36.\n15; limbi borei Solis 59. 53. 0.", "source": "olmocr", "added": "2026-01-12", "created": "2026-01-12", "metadata": { "Source-File": "/home/jic823/projects/def-jic823/royalsociety/pdfs/104240.pdf", "olmocr-version": "0.3.4", "pdf-total-pages": 8, "total-input-tokens": 12084, "total-output-tokens": 2691, "total-fallback-pages": 0 }, "attributes": { "pdf_page_numbers": [ [ 0, 0, 1 ], [ 0, 1032, 2 ], [ 1032, 1965, 3 ], [ 1965, 2159, 4 ], [ 2159, 3294, 5 ], [ 3294, 4507, 6 ], [ 4507, 5542, 7 ], [ 5542, 6354, 8 ] ], "primary_language": [ "en", "en", "la", "la", "la", "la", "la", "la" ], "is_rotation_valid": [ true, true, true, true, true, true, true, true ], "rotation_correction": [ 0, 0, 0, 0, 0, 0, 0, 0 ], "is_table": [ false, false, false, false, false, false, false, false ], "is_diagram": [ false, false, false, true, false, false, false, true ] }, "jstor_metadata": { "identifier": "jstor-104240", "title": "A Collection of the Observations of the Eclipse of the Sun, August 4th 1738. Which Were Sent to the Royal Society", "authors": "George Graham, Jo. Frid. Weidlero, Andrea Celsio, Mr. Short", "year": 1739, "volume": "41", "journal": "Philosophical Transactions (1683-1775)", "page_count": 8, "jstor_url": "https://www.jstor.org/stable/104240" } }