(119979) 2002 WC19
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- The correct title of this article is (119979) 2002 WC19. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
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Discovery
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| Discovered by | Palomar Observatory |
| Discovery date | November 16, 2002 |
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Designations
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| MPC designation | (119979) 2002 WC19 |
| Alternative names | none |
| Minor planet category |
Twotino[1] |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 8989.786 Gm (60.093 AU) |
| Perihelion | 5269.094 Gm (35.222 AU) |
| Semi-major axis | 7129.440 Gm (47.657 AU) |
| Eccentricity | 0.261 |
| Orbital period | 120169.272 d (329.01 a) |
| Average orbital speed | 4.24 km/s |
| Mean anomaly | 305.041° |
| Inclination | 9.191° |
| Longitude of ascending node | 109.692° |
| Argument of perihelion | 45.322° |
| Satellites | 1 (127 km) |
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Physical characteristics
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| Dimensions | 400 km |
| Surface area | 5.5×105 km² |
| Volume | 3.9×107 km³ |
| Mass | 7.8×1019? kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.1174? m/s² |
| Escape velocity | 0.2220? km/s |
| Sidereal rotation period |
? d |
| Albedo | 0.10? |
| Temperature | ~40 K |
| Spectral type | ? |
| Absolute magnitude | 5.1 |
(119979) 2002 WC19, also written as (119979) 2002 WC19, is a Trans-Neptunian object (TNO) orbiting beyond Pluto in the Kuiper belt. It was discovered on November 16, 2002 at the Palomar Observatory.
It is in a 2:1 orbital resonance with Neptune, so it has been categorized as a twotino.
[edit] Satellite
A natural satellite was reported to be in orbit of (119979) 2002 WC19 on February 27, 2007. It is estimated to be orbiting at 2700 km from the primary and to be 127 kilometres in diameter.
[edit] References
http://www.johnstonsarchive.net/astro/astmoons/am-119979.html
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