Record

Reference numberEL/C1/50
LevelItem
TitleJean Dominique Cassini, dated at Paris, to Henry Oldenburg
CreatorCassini; Jean Dominique (1625-1712); Italian/French mathematician; astronomer; engineer; astrologer
Date10 June 1669
DescriptionCassini states that he has pushed forward the ephemerides of the 'Medicean stars' (Jupiter's moons)
A paper by Nicholas Mercator is attached which considers Cassini's geometrical and direct method for finding the anomalies of the planets. Figures and mathematical formulae are attached

Oldenburg has written a note on the back of the paper about Dr Wren promising Collins the direct method for dividing the area of an ellipse and a table method for finding the length of the ellipse

Read to the Royal Society on 16 June 1669
LanguageLatin
Extent23 sides
FormatManuscript
Place originParis, le-de-France, France
Origin coordinates48.85341, 2.3488
Access statusOpen
Related materialTranscribed in LBO/3/105
Letter is transcribed and translated in 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall and Marie Boas Hall, vol 5, p 576
Mercator's paper is printed in 'Philosophical Transactions', vol 5, no 57, p 1168
URL descriptionAlso available on Early Modern Letters Online
URLhttp://emlo.bodleian.ox.ac.uk/profile/work/7cb5d889-afdc-4852-a9e2-324ffc76c839
Fellows associated with this archive
CodeNameDates
NA8001Oldenburg; Henry (c1619 - 1677); scientific correspondentc1619 - 1677
NA8383Cassini; Jean Dominique (1625 - 1712); astronomer1625 - 1712
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