Английская Википедия:(119979) 2002 WC19
Шаблон:Mp is a twotino, that is, a planetoid in a 1:2 orbital resonance with Neptune. It was discovered on November 16, 2002 at the Palomar Observatory. If its derived diameter is correct it would have a higher density than Pluto, which is unusual as it appears to be much smaller than the expected size at which a Kuiper belt object usually becomes solid.
Knowing how many twotinos there are may reveal whether Neptune took roughly 1 million or 10 million years to migrate about 7 AU from its birth location.[1]
Satellite
A natural satellite was reported to be orbiting Шаблон:Mp (named S/2007 (119979) 1) on February 27, 2007. It is estimated to be Шаблон:Val from the primary, with an orbital period of Шаблон:Val days, an eccentricity of Шаблон:Val and an inclination of Шаблон:Val. Assuming similar albedos, it is a quarter the diameter of its primary, or around Шаблон:Convert in diameter.[2]
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Orbit of Шаблон:Mp compared to Pluto and Neptune
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1:2 libration over 20,000 years – Neptune is held stationary (dot at 5 o'clock); orbit of Uranus in blue
References
External links
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Trans-Neptunian objects Шаблон:Dwarf planets Шаблон:Authority control
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