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The Royal Society: Science in the Making

Correspondence Explorer

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Showing 4 letters from 1673–1682

4 letters from Jean Dominique Cassini; 0 letters from John Flamsteed

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Cassini discusses observations of the satellites of Jupiter (particularly the distances of the satellites from Jupiter), the parallax of Mars, and Horrocks's theory of the moon

11 August 1673 Sender: Jean Dominique Cassini , Jean Dominique Cassini Reference number: EL/C1/59

Cassini explains why Jupiter appears round when in quadrature with the sun, discusses the diameter of Mars and the sun's maximum declination Read to the Royal Society on 11 December 1673

08 November 1673 Sender: Jean Dominique Cassini , Jean Dominique Cassini Reference number: EL/C1/61
1676

Concerning the eclipse of the moon observed at London and Paris

11 February 1676 Sender: Jean Dominique Cassini , Jean Dominique Cassini Reference number: EL/C1/67
1682

Concerning observations of the lunar eclipse seen in Paris and London on 21 February 1681 A table is attached

15 June 1682 Sender: Jean Dominique Cassini , Jean Dominique Cassini Reference number: EL/C1/82