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Description

Cassini provides his observations of a possible satellite of Saturn during October and November 1671; concerning Robert Hooke's observations of a lunar eclipse during September; Cassini gives his explanation of why Saturn looked round
Read to the Royal Society on 11 January 1672

Reference number
EL/C1/54
Earliest possible date
09 January 1672
Page extent
4 pages
Format
Manuscript

Creator names

Jean Dominique Cassini

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Jean Dominique Cassini

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Citation

Jean Dominique Cassini, Jean Dominique Cassini, Letter, from Jean Dominique Cassini to Henry Oldenburg, 09 January 1672, EL/C1/54, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_c1_54/letter-from-jean-dominique-cassini-to-henry-oldenburg, accessed on 14 March 2026

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  • Early Letters

    The archival collection known as 'Early Letters' is composed of original manuscript letters sent to, or collected by, the Royal Society from English and foreign correspondents.

    Dates: 1613 - 1740

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