Indian Ocean Transit Observations
Contributes to international efforts to determine the astronomical unit.
Historical biography archive · Updated 2026-11-03
Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil Biography and Timeline
Follow Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil through 3 dated historical records for France.
Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil, historical timeline
A chronological timeline drawn from matching World History Database records.
3Distinct records
1 of 1Page
1761–1769Years on this page
1761
Transit of Venus Expedition
Attempts to observe the Venus transit during an extended scientific voyage.
1769
Transit of Venus
Le Gentil reaches Pondicherry for the 1769 transit but clouds prevent him from observing the event after years of travel.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.