(65407) 2002 RP120
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- The correct title of this article is (65407) 2002 RP120. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
| Discovery | |
|---|---|
| Discovered by: | Brian A. Skiff/LONEOS |
| Discovery date: | September 4, 2002 |
| Alternative names: | none |
| Minor planet category: | Damocloid asteroid, Scattered disk object |
| Orbital characteristics | |
| Epoch July 14, 2004 (JD 2453200.5) | |
| Aphelion distance: | 16366.658 Gm (109.404 AU) |
| Perihelion distance: | 369.948 Gm (2.473 AU) |
| Semi-major axis: | 8368.303 Gm (55.939 AU) |
| Eccentricity: | 0.956 |
| Orbital period: | 152,815.148 d (418.39 a) |
| Avg. orbital speed: | 3.98 km/s |
| Mean anomaly: | 1.523° |
| Inclination: | 119.112° |
| Longitude of ascending node: | 39.194° |
| Argument of perihelion: | 358.002° |
| Physical characteristics | |
| Dimensions: | 10-20 km |
| Mass: | 3.1×1015 kg |
| Mean density: | 2 ? g/cm³ |
| Equatorial surface gravity: | 0.0040 m/s² |
| Escape velocity: | 0.0076 km/s |
| Rotation period: | 8.3? d 1 |
| Albedo: | 0.1 ? |
| Temperature: | ~37 K |
| Spectral type: | ? |
| Absolute magnitude: | 12.3 |
(65407) 2002 RP120 (also written (65407) 2002 RP120) holds the dubious distinction of being the most eccentric of the numbered asteroids (as of July 2004). It is also a member of the very exclusive group of retrograde asteroids, which has only two numbered members (the other one is 20461 Dioretsa). Its classification is uncertain, as it is at once a Damocloid (a highly eccentric, highly inclined object likely to be an extinct comet) and a scattered disk object (a Trans-Neptunian object with a very eccentric orbit, likely ejected from the ecliptic by Neptune).
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| Minor planets | ||
|---|---|---|
| Previous minor planet | (65407) 2002 RP120 | Next minor planet |
| List of asteroids | ||
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.
