6255 Kuma
| Discovery [1] | |
|---|---|
| Discovered by | A. Nakamura |
| Discovery site | Kuma Kogen Obs. |
| Discovery date | 5 December 1994 |
| Designations | |
| MPC designation | 6255 Kuma |
|
Named after
|
Kuma, Ehime (Japanese town)[2] |
| 1994 XT · 1975 VJ8 1981 DV3 · 1986 EB2 1988 SU4 · 1989 WP3 1992 OL1 |
|
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 40.02 yr (14,618 days) |
| Aphelion | 2.8321 AU |
| Perihelion | 2.6529 AU |
| 2.7425 AU | |
| Eccentricity | 0.0326 |
| 4.54 yr (1,659 days) | |
| 224.45° | |
| Inclination | 5.1198° |
| 275.39° | |
| 192.38° | |
| Physical characteristics | |
| Dimensions | 22.72±1.7 km (IRAS:3)[4] 17.86±0.52 km[5] 16.955±0.135 km[6] 21.50±9.05 km[7] 22.67 km (derived)[3] |
| 9.70±0.01 h[8] | |
| 0.0342±0.006 (IRAS:3)[4] 0.058±0.004[5] 0.0601±0.0012[6] 0.029±0.029[7] 0.0238 (derived)[3] |
|
| C [3] | |
| 12.9[1] | |
6255 Kuma, provisional designation 1994 XT, is a carbonaceous asteroid from the outer region of the asteroid belt, about 23 kilometers in diameter. It was discovered on 5 December 1994, by Japanese astronomer Akimasa Nakamura at Kuma Kogen Astronomical Observatory on the Island of Shikoku, Japan.[9]
The dark C-type asteroid orbits the Sun at a distance of 2.7–2.8 AU once every 4 years and 6 months (1,659 days). Its orbit is tilted by 5 degrees to the plane of the ecliptic and shows an eccentricity of 0.03. In 2006, a photometric light-curve analysis at the Palmer Divide Observatory in Colorado rendered a rotation period of 9.70±0.01 hours with an amplitude of 0.15 in magnitude.[8]
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the U.S. WISE and its NEOWISE mission, the body's albedo varies between 0.03 and 0.06, while the Collaborative Asteroid Lightcurve Link assumes an even lower value of 0.02.[3][4][5][6][7]
The minor planet was named for the small Japanese town Kuma (now Kumakōgen, Ehime), home of the discovering observatory that was built in 1992 for astronomical education and tourism. Kuma is located on the Japanese island of Shikoku, after which the minor planet 4223 Shikoku is named, and is known for its forestry and agriculture, and as an important destination for pilgrims. The town also encourages local cultural activities.[2]
References
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- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 7.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 6255 Kuma at the JPL Small-Body Database
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