1769 Transit of Venus observed from Tahiti while voyaging to (unsuccessfully) observe the 1761 Transit in Sumatra. Using the solar parallax values obtained from the 1769 transit, Hornsby wrote in "Philosophical Transitions" December 1771 that "the mean distance from the Earth to the Sun (is) 93,726,900 English miles." The radar-based value used today for the astronomical unit is . This is only a difference of eight-tenths of one percent. Considering what these astronomers had to work with, their results were "absolutely remarkable". 1769 Transit of Venus observed from Tahiti On June 3, 1769, British navigator Captain James Cook, British naturalist Joseph Banks, British astronomer Charles Green and
Kingdom of Tahiti of those who had arrived at Pitcairn on HMS Bounty in 1790, only seven remained, but with their offspring they numbered 86. The supply of timber on Pitcairn was decreasing and the availability of water was erratic. Since the end of the Napoleonic wars, the Pitcairn islanders had been discovered by and had friendly contact with the Royal Navy and British authorities. In 1830, Tahiti's Queen Pomare IV invited the Pitcairners to return to Tahiti, and in March 1831, a British ship transported them there. The Tahitians welcomed the Pitcairners and offered them land. But having been isolated and not