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
RMS Tahiti Zealand Transport") "Tahiti". She was part of the convoy transporting the First Detachment of the Australian and New Zealand Imperial Expeditionary Forces, which left King George's Sound, Albany, Western Australia on 1 November 1914. On 11 September 1915, she arrived in Wellington with the first casualties from the Gallipoli campaign. "Tahiti" left New Zealand on 10 July 1918 with 1,117 troops onboard and 100 crew members, bound for England. When she met the rest of her convoy at Freetown in Sierra Leone, reports of disease ashore led to a quarantine order for the ships. However, the ships were resupplied by