(20161) 1996 TR66
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- The correct title of this article is (20161) 1996 TR66. 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 | D. C. Jewitt, C. A. Trujillo, J. X. Luu, J. Chen[1] |
| Discovery date | October 08, 1996 |
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Designations
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| MPC designation | (20161) 1996 TR66 |
| Alternative names | none |
| Minor planet category |
Twotino |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 10008.954 Gm (66.906 AU) |
| Perihelion | 4286.818 Gm (28.656 AU) |
| Semi-major axis | 7147.886 Gm (47.781 AU) |
| Eccentricity | 0.400 |
| Orbital period | 120635.952 d (330.28 a) |
| Average orbital speed | 4.13 km/s |
| Mean anomaly | 43.591° |
| Inclination | 12.432° |
| Longitude of ascending node | 343.070° |
| Argument of perihelion | 308.898° |
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Physical characteristics
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| Dimensions | 139 km[2] |
| Mass | 2.8×1018? kg |
| Mean density | 2.0? g/cm³ |
| Escape velocity | 0.0735? km/s |
| Sidereal rotation period |
? d |
| Albedo | 0.10? |
| Temperature | ~40 K |
| Spectral type | ? |
| Absolute magnitude | 7.5 |
(20161) 1996 TR66, also written as (20161) 1996 TR66, is a Trans-Neptunian object (TNO) orbiting beyond Pluto in the Kuiper belt. It was discovered on October 8, 1996 by David C. Jewitt, Chad Trujillo, Jane X. Luu, and Jun Chen at the Mauna Kea Observatory, Hawaii.
It is in a 2:1 orbital resonance with Neptune, so it has been categorized as a twotino, of which it is the earliest discovered.
[edit] References
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