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The Royal Society: Science in the Making

Letter, 'On the difference in longitude of Paris and Greenwich observatories' from Peter William Wargentin to Nevil Maskelyne

Reference number: L&P/6/221

Date: 1776

Description

Subject: Astronomy

Published in Philosophical Transactions, as 'A letter from Mr. Peter Wargentin, F.R.S. Secretary to the Royal Academy of Sciences at Stockholm, to the Rev. Nevil Maskelyne, B.D. F.R.s. and Astronomer Royal; concerning the difference of longitude of the Royal Observatories at Paris and Greenwich, resulting from the eclipses of Jupiter's first satellites, observed during the last ten years: to which is added, a comparative table of the corresponding observations of the first satellite, made in the principal observatories'

Read 6 February 1777

Reference number
L&P/6/221
Earliest possible date
1776
Physical description
Ink on paper
Page extent
8 pages
Format
Manuscript

Creator name

Pehr Wilhelm Wargentin

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Citation

Pehr Wilhelm Wargentin, Letter, 'On the difference in longitude of Paris and Greenwich observatories' from Peter William Wargentin to Nevil Maskelyne, 1776, L&P/6/221, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/l-and-p_6_221/letter-on-the-difference-in-longitude-of-paris-and-greenwich-observatories-from-peter-william-wargentin-to-nevil-maskelyne, accessed on 05 December 2025

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https://makingscience.royalsociety.org/items/l-and-p_6_221/letter-on-the-difference-in-longitude-of-paris-and-greenwich-observatories-from-peter-william-wargentin-to-nevil-maskelyne

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  • Letters and Papers

    'Letters and Papers' contains the scientific correspondence sent to the Royal Society through the 18th century, many of which were published in its journal.

    Dates: 1741 - 1806

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