1769 Transit of Venus observed from Tahiti search for the alleged southern continent. HMS Bark "Endeavour" was chosen to take the astronomers and other scientists to Tahiti. James Cook was commissioned as Lieutenant and appointed to command the vessel. Cook was the obvious choice as he was an outstanding seaman with navigational qualifications, a capable astronomer and had observed a 1766 annular eclipse in Newfoundland that was communicated to the Royal Society by John Bevis. Once the "Endeavour" arrived on the island, Cook decided to set up the Venus transit observatory on shore. He required a completely stable platform which the ship could not provide and plenty
Tahiti Lords Commissioners of the Admiralty to observe the transit of Venus across the sun, a phenomenon that would be visible from Tahiti on 3 June 1769. He arrived in Tahiti's Matavai Bay, commanding on 12 April 1769. On 14 April, Cook met with Tutaha and Tepau. On 15 April, Cook picked the site for a fortified camp at Point Venus along with Banks, Parkinson, Daniel Solander, to protect Charles Green's observatory. The length of stay enabled them to undertake for the first time real ethnographic and scientific observations of the island. Assisted by the botanist Joseph Banks, and by the