Английская Википедия:(471325) 2011 KT19
Шаблон:Mp, nicknamed Niku (Шаблон:IPAc-en), is a trans-Neptunian object whose orbit is tilted 110° with respect to the planets' orbital plane. Thus, it has a nearly polar retrograde orbit around the Sun.[1][2][3][4]
While the object has not received a formal name, it received the moniker "Niku" (逆骨), meaning "rebellious" in the Chinese language, by its discoverers.[5][6]
Details
Шаблон:Mp was discovered by the Mount Lemmon Survey on 31 May 2011. Its rediscovery was announced in August 2016 by a team of astronomers using the Pan-STARRS telescope. It was soon linked with a supposed prograde centaur (Шаблон:Mp; inclination = 38° and semi-major axis = 28 AU) that had been lost due to a short observation arc.[7][2] Шаблон:Mp is in a 7:9 resonance with Neptune. Currently it is the only object with a nearly polar orbit that is in resonance with a planet.[8] Notably, it is part of a group of objects that orbit the Sun in a highly inclined orbit; the reasons for this unusual orbit are unknown as of August 2016.[9]
The orbital characteristics of Шаблон:Mp have been compared to those of Шаблон:Mpl (Drac). The orbits of Шаблон:Mp, Шаблон:Mp, Шаблон:Mpl, Шаблон:Mpl, Шаблон:Mpl, Шаблон:Mpl, appear to occupy a common plane, with three in prograde and three in retrograde orbits. The probability of this alignment occurring by chance is 0.016%. These orbits should leave a common plane in a few million years because the precession of prograde and retrograde orbits are in opposite directions. Simulations including the hypothetical Planet Nine did not maintain a common orbital plane and the plane does not coincide with the plane of the predicted high-inclination large semi-major axis objects of that model. Other simulations with a few Earth-mass dwarf planet on a high-inclination orbit also failed to reproduce the alignment.[2]
| Файл:2011 KT19 orbit views.png |
| The orbit of Шаблон:Mp in relation to Pluto and the planets of the Solar System |
| Niku and Drac |
| The orbit of Niku (purple), is shown with another steep retrograde TNO, Drac (yellow), and the other planets. Pluto's orbit is in red. |
References
External links
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:2016 in space Шаблон:Authority control
- ↑ Шаблон:Cite web
- ↑ 2,0 2,1 2,2 Шаблон:Cite journal
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite news
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMPEC2011-L09не указан текст - ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite web
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