Search results
Results From The WOW.Com Content Network
Pages in category "Discoveries by William Herschel" The following 200 pages are in this category, out of approximately 399 total. This list may not reflect recent changes .
Uranus: 7th Planet: Herschel first reported the discovery of Uranus on 26 April 1781, initially believing it to be a comet. [17]: 11 January 1787 p: 15 February 1787 Titania: Uranus III Uranus I (1787–1797) Herschel. [18] [19] He later reported four more spurious satellites. [20] Oberon: Uranus IV Uranus II (1787–1797) o: 28 August 1789 [21 ...
A Cassini orbiter's view of Mimas, a moon of Saturn discovered by Herschel in 1789. In 1789, shortly after this instrument was operational, Herschel discovered a new moon of Saturn: Mimas, only 250 miles (400 km) in diameter. [71] Discovery of a second moon followed, within the first month of observation. [45] [72] [73]
The William Herschel's 40-foot (12 m) telescope 1781 – Charles Messier and his assistant Pierre Méchain publish the first catalogue of 110 nebulae and star clusters , the most prominent deep-sky objects that can easily be observed from Earth's Northern Hemisphere , in order not to be confused with ordinary Solar System's comets .
Eventually, new moons were discovered also around Uranus starting in 1787 by Herschel, [23] around Neptune starting in 1846 by William Lassell [24] and around Mars in 1877 by Asaph Hall. [25] Further apparent discrepancies in the orbits of the outer planets led Percival Lowell to conclude that yet another planet, "Planet X", must lie beyond ...
Amateur astronomer William Herschel discovers the planet Uranus, although he at first mistakes it for a comet. Uranus is the first planet to be discovered beyond Saturn, which was thought to be the most distant planet in ancient times.
The pronunciation of the name Uranus preferred among astronomers is / ˈ jʊər ə n ə s / YOOR-ə-nəs, [1] with the long "u" of English and stress on the first syllable as in Latin Uranus, in contrast to / j ʊ ˈ r eɪ n ə s / yoo-RAY-nəs, with stress on the second syllable and a long a, though both are considered acceptable. [g]
August 28 and September 17 – William Herschel discovers Saturn's moons Enceladus and Mimas, which he describes to the Royal Society of London on November 12. [ 2 ] Maximilian Hell establishes the constellations Tubus Hershelli Major and Minor in honour of Herschel's discovery of Uranus (constellations obsolete by 1930).