to its diameter. He was a close friend of Sir Isaac Newton and Sir Edmund Halley. In November 1711, he became a Fellow of the Royal Society, and was... 9 KB (810 words) - 01:15, 6 May 2024 |
Comet (redirect from Halley-type comet) Heritage Books: Did the Arabs Discover the Periodicity of Comets Before Edmund Halley?". ASP Conference Series. 520: 83. Bibcode:2019ASPC..520...83K. Olson... 144 KB (15,291 words) - 08:32, 4 May 2024 |
and the astronomers Tycho Brahe, Johannes Kepler, Galileo Galilei and Edmund Halley all used Al-Battānī's observations. Al-Battānī introduced the use of... 44 KB (4,647 words) - 02:28, 19 March 2024 |
determines when star formation occurs in molecular clouds. In 1720, Edmund Halley considered a universe without edges and pondered what would happen if... 19 KB (2,968 words) - 18:35, 12 May 2024 |