Английская Википедия:2005 VX3
Шаблон:Short description Шаблон:Use dmy dates
Шаблон:Mp is trans-Neptunian object and retrograde damocloid on a highly eccentric, cometary-like orbit. It was first observed on 1 November 2005, by astronomers with the Mount Lemmon Survey at the Mount Lemmon Observatory in Arizona, United States. The unusual object measures approximately Шаблон:Convert in diameter.[1] It has the 3rd largest known heliocentric semi-major axis and aphelion.[2] Additionally its perihelion lies within the orbit of Jupiter, which means it also has the largest orbital eccentricity of any known minor planet.
Description
Шаблон:Mp orbits the Sun at a distance of 4.1–1,826 AU once every 27,672 years (semi-major axis of 915 AU). Its orbit has an eccentricity of 0.9955 and an inclination of 112° with respect to the ecliptic. It belongs to the dynamical group of damocloids due to its retrograde orbit and its low Tisserand parameter (TJupiter of −0.9430).[3] It is a Jupiter-, Saturn-, Uranus-, and Neptune-crosser. The body's observation arc begins with its first observation by the Mount Lemmon Survey on 1 November 2005.[4]
Orbital evolution — Barycentric elements | |||
Year[5] (epoch) |
Aphelion | Semimajor-axis | Ref |
---|---|---|---|
1950 | 2710 AU | n.a. | Шаблон:Efn |
2012 | 1914 AU | n.a. | Шаблон:Efn |
2015 | 2563 AU | n.a. | Шаблон:Efn |
2016 | 3235 AU | n.a. | Шаблон:Efn |
2050 | 2049 AU | 1026 AU | Шаблон:Efn |
Шаблон:Mp has a barycentric semi-major axis of ~1026 AU.[5][lower-alpha 1] Шаблон:Mpl and Шаблон:Mpl have a larger barycentric semi-major axis. The epoch of January 2016 was when Шаблон:Mp had its largest heliocentric semi-major axis.
The object has a short observation arc of 81 days and does not have a well constrained orbit.[3] It has not been observed since January 2006, when it came to perihelion, 4.1 AU from the Sun.[3] It may be a dormant comet that has not been seen outgassing. In the past it may have made closer approaches to the Sun that could have removed most near-surface volatiles. The current orbit crosses the ecliptic just inside Jupiter's orbit and has a Jupiter-MOID of 0.8 AU.[3]
In 2017, it had an apparent magnitude of ~28 and was 24 AU from the Sun. It comes to opposition in mid-June. It would require one of the largest telescopes in the world for any more follow-up observations.
Comparison
See also
Notes
References
External links
- Shefford Observatory - 2005 November notes: 2005 WC, 2005 VX3, 2005 WY3, 2005 WN3, 2005 WY, GS5BRH
- Шаблон:JPL small body
Шаблон:Trans-Neptunian objects Шаблон:Small Solar System bodies Шаблон:Authority control
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