(15874) 1996 TL66
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- The correct title of this article is (15874) 1996 TL66. 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 | David C. Jewitt, Jane X. Luu, and Jun Chen |
| Discovery date | October 9, 1996 |
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Designations
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| MPC designation | (15874) 1996 TL66 |
| Alternative names | none |
| Minor planet category |
Scattered disk object |
| Epoch August 18, 2005 (JD 2453600.5) | |
| Aphelion | 19,563.460 Gm (130.774 AU) |
| Perihelion | 5,240.211 Gm (35.029 AU) |
| Semi-major axis | 12,401.836 Gm (82.901 AU) |
| Eccentricity | 0.577 |
| Orbital period | 275,701.583 d (754.83 a) |
| Average orbital speed | 2.98 km/s |
| Mean anomaly | 1.971° |
| Inclination | 24.018° |
| Longitude of ascending node | 217.798° |
| Argument of perihelion | 184.699° |
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Physical characteristics
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| Dimensions | ~575 ±115 km[1] |
| Mass | 2.6?×1020 kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | ~0.17 m/s² |
| Escape velocity | ~0.33 km/s |
| Sidereal rotation period |
? d |
| Albedo | 0.10? |
| Temperature | ~31 K |
| Spectral type | ? |
| Absolute magnitude | 5.4 |
(15874) 1996 TL66 (also written (15874) 1996 TL66) is a trans-Neptunian object that resides in the scattered disc.
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[edit] Discovered
Discovered in 1996 by David C. Jewitt et al., it was the first object to be categorized as a scattered disk object (SDO), although (48639) 1995 TL8, discovered a year earlier, was later recognised as a scattered disk object. It was one of the largest known Kuiper belt objects at the time of the discovery.
[edit] Orbit and Size
1996 TL66 orbits the Sun with a semi-major axis of 85.33 AU. Its diameter has been estimated at around 630 km by combined optical/thermal observations [1].
[edit] External links
- First MPEC listing for (15874) 1996 TL66
- 1996 TL66: A New Type of Transneptunian Object — CfA news release
- 1996 TL66, a Newly Discovered Planetesimal
- 1996 TL66 - A New Dynamical Class in the Outer Solar System — from David Jewitt's Kuiper Belt website
- list of known TNOs, including size estimates
- IAU minor planet lists
[edit] References
- ^ Stansberry, Grundy, Brown, Spencer, Trilling, Cruikshank, Luc Margot Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope (2007) [Preprint arXiv]
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