(20161) 1996 TR66
| Discovery | |
|---|---|
| Discovered by | D. C. Jewitt, C. A. Trujillo, J. X. Luu, J. Chen[1] |
| Discovery date | October 08, 1996 |
| Designations | |
Designation | (20161) 1996 TR66 |
| none | |
| Twotino | |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 10008.954 Gm (66.906 AU) |
| Perihelion | 4286.818 Gm (28.656 AU) |
| 7147.886 Gm (47.781 AU) | |
| Eccentricity | 0.400 |
| 120635.952 d (330.28 a) | |
Average orbital speed | 4.13 km/s |
| 43.591° | |
| Inclination | 12.432° |
| 343.070° | |
| 308.898° | |
| Physical characteristics | |
| Dimensions | 139 km[2] |
| Mass | 2.8×1018? kg |
Mean density | 2.0? g/cm³ |
| 0.0735? km/s | |
| ? d | |
| Albedo | 0.10? |
| Temperature | ~40 K |
Spectral type | ? |
| 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 1:2 orbital resonance with Neptune, so it has been categorized as a twotino, of which it is the earliest discovered.
References
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