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
George Anson (British Army officer, born 1769) Olympic rower, is a direct descendant of Sir George Anson. George Anson (British Army officer, born 1769) General Sir George Anson, GCB (1769 – 4 November 1849), was a British officer and politician from the Anson family. He commanded a British cavalry brigade under the Duke of Wellington during the Peninsular War and sat for many years as a Whig Member of Parliament. Anson was the second son of George Anson (previously Adams) and his wife The Hon. Mary Vernon, daughter of the first Lord Vernon. He had an elder brother, Thomas Anson, 1st Viscount Anson, and a younger brother,