(47171) 1999 TC36
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- The correct title of this article is (47171) 1999 TC36. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
| Discovery | |
|---|---|
| Discovered by: | E. P. Rubenstein, L.-G. Strolger |
| Discovery date: | October 1, 1999 |
| MPC designation: | (47171) 1999 TC36 |
| Alternative names: | none |
| Minor planet category: | Trans-Neptunian object |
| Orbital characteristics | |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion distance: | 7173.592 Gm (47.952 AU) |
| Perihelion distance: | 4571.710 Gm (30.560 AU) |
| Semi-major axis: | 5872.651 Gm (39.256 AU) |
| Eccentricity: | 0.222 |
| Orbital period: | 89838.309 d (245.96 a) |
| Avg. orbital speed: | 4.69 km/s |
| Mean anomaly: | 346.981° |
| Inclination: | 8.416° |
| Longitude of ascending node: | 97.059° |
| Argument of perihelion: | 295.003° |
| Physical characteristics | |
| Dimensions: | 350-470 km (eff. diameter) |
| Mass: | 1.8–1.6×1019 kg |
| Mean density: | 0.8-0.3 g/cm³ (eff.) |
| Equatorial surface gravity: | 0.039–0.020 m/s² |
| Escape velocity: | 0.117–0.096 km/s |
| Sidereal rotation period: | ? d |
| Albedo: | 0.055-0.11 (eff.) |
| Temperature: | ~45–44 K |
| Spectral type: | ? |
| Absolute magnitude: | 4.73 |
(47171) 1999 TC36 (also written: (47171) 1999 TC36) is a trans-Neptunian object. It was discovered in 1999 by Eric P. Rubenstein and Louis-Gregory Strolger. It is classified as a plutino. It was the first Trans-Neptunian object discovered to have a companion, S/2001 (47171) 1, and is also one of the brightest Trans-Neptunian objects.
[edit] S/2001 (47171) 1
The companion, discovered from 8 December 2001 observations by C. A. Trujillo and M. E. Brown using the Hubble Space Telescope and announced on 10 January 2002, has an estimated diameter of 142±23 km and a semi-major axis of 7640±460 km, orbiting its primary in 50.38±0.5 d.
[edit] External links
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| Minor planets | ||
|---|---|---|
| Previous minor planet | (47171) 1999 TC36 | Next minor planet |
| List of asteroids | ||
Kuiper belt: Orcus · Pluto · Ixion · 2002 UX25 · Varuna · 2002 TX300 · 2003 EL61 · Quaoar · 2005 FY9 · 2002 AW197
Scattered disc: 2002 TC302 · Eris · 2004 XR190 · Sedna
For pronunciation, see: Centaur and TNO pronunciation.
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
