'Extract of a letter to the Publisher of 'Philosophical Transactions' from Monsieur de l'Isle Astronomer Royal at Petersbourg containing his Observations of the Eclipses of Jupiter's Satellites from July 10 1726 to April 12 1728 taken at that Place'

'Extract of a letter to the Publisher of 'Philosophical Transactions' from Monsieur de l'Isle Astronomer Royal at Petersbourg containing his Observations of the Eclipses of Jupiter's Satellites from July 10 1726 to April 12 1728 taken at that Place', 1728, RBO/13/83, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/rbo_13_83/extract-of-a-letter-to-the-publisher-of-philosophical-transactions-from-monsieur-de-lisle-astronomer-royal-at-petersbourg-containing-his-observations-of-the-eclipses-of-jupiters-satellites-from-july-10-1726-to-april-12-1728-taken-at-that-place, accessed on 24 April 2025

https://makingscience.royalsociety.org/items/rbo_13_83/extract-of-a-letter-to-the-publisher-of-philosophical-transactions-from-monsieur-de-lisle-astronomer-royal-at-petersbourg-containing-his-observations-of-the-eclipses-of-jupiters-satellites-from-july-10-1726-to-april-12-1728-taken-at-that-place

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