1213 Algeria
| Discovery [1] | |
|---|---|
| Discovered by | G. Reiss |
| Discovery site | Algiers Observatory |
| Discovery date | 5 December 1931 |
| Designations | |
| MPC designation | 1213 Algeria |
|
Named after
|
Algeria (country)[2] |
| 1931 XD | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.90 yr (30,645 days) |
| Aphelion | 3.5364 AU |
| Perihelion | 2.7361 AU |
| 3.1362 AU | |
| Eccentricity | 0.1275 |
| 5.55 yr (2,029 days) | |
| 62.814° | |
| Inclination | 13.079° |
| 271.76° | |
| 107.43° | |
| Physical characteristics | |
| Dimensions | 33.20 km[4] 34.46±0.67 km[5] 30.189±0.239 km[6] 33.51±0.78 km[7] 31±3 km[8] 33.08 km (derived)[3] |
| 16 h[9] | |
| 0.0767[4] 0.076±0.003[5] 0.0934±0.0106[6] 0.057±0.010[7] 0.06±0.01[8] 0.0586 (derived)[3] |
|
| C [3] | |
| 11.1 | |
1213 Algeria, provisional designation 1931 XD, is a carbonaceous asteroid from the outer region of the asteroid belt, about 33 kilometers in diameter. It was discovered by French astronomer Guy Reiss at the North African Algiers Observatory on 5 December 1931.[10] Three nights later, the body was independently discovered by Belgian–American astronomer George Van Biesbroeck at Williams Bay in the U.S state of Wisconsin.[2]
The dark C-type asteroid orbits the Sun at a distance of 2.7–3.5 AU once every 5 years and 7 months (2,029 days). Its orbit shows an eccentricity of 0.13 and is tilted by 13 degrees to the plane of the ecliptic. It has a rotation period of 16 hours[9] and an albedo between 0.06 and 0.09, according to the surveys carried out by the IRAS, Akari, and WISE/NEOWISE missions.[4][5][6][7][8]
The minor planet was named in honour of the North African country Algeria, location of the discovering observatory and a French colony at the time.[2]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 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 8.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 9.0 9.1 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 (1)-(5000) – Minor Planet Center
- 1213 Algeria at the JPL Small-Body Database
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