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541132 Leleākūhonua (/ ˌ l ɛ l eɪ ɑː ˌ k uː h oʊ ˈ n uː ə /) (provisional designation 2015 TG 387) is an extreme trans-Neptunian object and sednoid in the outermost part of the Solar System.
The largest known trans-Neptunian objects are Pluto and Eris, followed by Haumea, Makemake, Gonggong, Quaoar, Sedna, and Orcus, all of them being officially recognized as dwarf planets by the IAU except for Gonggong, Sedna, and Orcus. There are also many possible dwarf planets, such as Salacia, (307261) 2002 MS 4, Varda, Ixion, and Varuna.
Makemake was discovered on March 31, 2005, by a team at the Palomar Observatory, led by Michael E. Brown, [8] and was announced to the public on July 29, 2005. The team had planned to delay announcing their discoveries of the bright objects Makemake and Eris until further observations and calculations were complete, but announced them both on July 29 when the discovery of another large object ...
Quaoar, a dwarf planet. Weywot; Makemake, a dwarf planet (307261) 2002 MS 4; 120347 Salacia; 20000 Varuna; Scattered-disc objects Gonggong, a dwarf planet. Xiangliu; Eris, a dwarf planet. Dysnomia (84522) 2002 TC 302 (87269) 2000 OO 67; V774104; Detached objects. 2004 XR 190; 2012 VP 113 (possibly inner Oort cloud) Sedna, a dwarf planet ...
The orbits of Sedna, 2012 VP 113, Leleākūhonua, and other very distant objects along with the predicted orbit of Planet Nine [A] An extreme trans-Neptunian object (ETNO) is a trans-Neptunian object orbiting the Sun well beyond Neptune (30 AU) in the outermost region of the Solar System. An ETNO has a large semi-major axis of at least 150 ...
One particularly distant body is 90377 Sedna, which was discovered in November 2003.It has an extremely eccentric orbit that takes it to an aphelion of 937 AU. [2] It takes over 10,000 years to orbit, and during the next 50 years it will slowly move closer to the Sun as it comes to perihelion at a distance of 76 AU from the Sun. [3] Sedna is the largest known sednoid, a class of objects that ...
90377 Sedna, a large trans-Neptunian object, had the provisional designation 2003 VB 12, meaning it was identified in the first half of November 2003 (as indicated by the letter "V"), and that it was the 302nd object identified during that time, as 12 cycles of 25 letters give 300, and the letter "B" is the second position in the current cycle.
A sednoid is a trans-Neptunian object with a large semi-major axis and a high perihelion, similar to the orbit of the dwarf planet Sedna. The consensus among astronomers is that there are only three objects that are known from this population: Sedna, 2012 VP 113, and 541132 Leleākūhonua (2015 TG 387). [1] All three have perihelia greater than ...