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 at at 4:30 a.m. on 15 August 1930 when her starboard propeller shaft broke, opening a large hole in her stern and causing rapid flooding. Her crew sent out a distress call via wireless, began launching distress signal rockets, prepared the passengers for the possibility of abandoning ship, and fought the flooding in an effort to save the ship. At 10:10 p.m. on 16 August, the Norwegian steamer arrived on the scene to render assistance. "Penybryn" stood by "Tahiti" throughout the night of 16–17 August with her floodlights illuminating "Tahiti" and her boats ready to go to the assistance of