Английская Википедия:(533560) 2014 JM80

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Шаблон:Mp, provisional designation Шаблон:Mp, is a trans-Neptunian object from the scattered disc in the outermost Solar System, approximately Шаблон:Convert in diameter. It was discovered on 9 May 2010 by astronomers with the Pan-STARRS-1 survey at the Haleakala Observatory, Hawaii, in the United States. According to American astronomer Michael Brown, it is "possibly" a dwarf planet.

Orbit and classification

Файл:Extreme transneptunian object eccentricity vs perihelion.png

2014 JM80 is located near the "gap", a poorly understood region.

Шаблон:Mp orbits the Sun at a distance of 46.0–80.2 AU once every 500 years and 11 months (182,969 days; semi-major axis of 63.07 AU). Its orbit has an eccentricity of 0.27 and an inclination of 20° with respect to the ecliptic.

This distant minor planet is a trans-Neptunian object and a member of the scattered disc population. Scattered-disc objects are thought to have been ejected from the classical Kuiper belt into their current orbits by gravitational interactions with Neptune, and typically have highly eccentric orbits and perihelia of less than 38 AU.

Шаблон:Mp has also been considered a detached object, since its relatively low eccentricity of 0.27, and its perihelion distance of 46.0 AU are hard to reconcile with the celestial mechanics of a scattered-disc object. This has led to some uncertainty as to the current theoretical understanding of the outermost Solar System. The theories include close stellar passages, unseen planet/rogue planets/planetary embryos in the early Kuiper belt, and resonance interaction with an outward-migrating Neptune. The Kozai mechanism is capable of transferring orbital eccentricity to a higher inclination.

With an orbital period of 500 years, and similar to Шаблон:Mpl, it seems to be a resonant trans-Neptunian objects in a 1:3 resonance with Neptune,Шаблон:Rp as several other objects, but with a lower eccentricity (0.27 instead of more than 0.60) and a higher perihelia (at 45.8 AU rather than 31–41 AU). Шаблон:Mp seems to belong to the same group as Шаблон:Mpl-.

External links

• Шаблон:AstDys
• Шаблон:JPL small body