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Letter, from John Flamsteed to Henry Oldenburg, dated at Derby

Reference number: EL/F1/101

Date: 24 August 1673

Description

Discussing Cassini's method for observing the diameter of Jupiter and parallax of Mars; regrets that Cassini's letters did not cover the meridional altitudes of the sun; criticisms about the letter which discussed the moon's right ascension from the sun for the meridian of Paris; suggests observations of the moon's diameter with discussion of Horrocks's theory on this topic

Reference number
EL/F1/101
Earliest possible date
24 August 1673
Page extent
3 pages
Format
Manuscript

Creator name

John Flamsteed

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Citation

John Flamsteed, Letter, from John Flamsteed to Henry Oldenburg, dated at Derby, 24 August 1673, EL/F1/101, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_f1_101/letter-from-john-flamsteed-to-henry-oldenburg-dated-at-derby, accessed on 03 December 2024

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  • Early Letters

    Dates: 1613-1740

    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.

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