641 Agnes
| Discovery [1] | |
|---|---|
| Discovered by | M. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 8 September 1907 |
| Designations | |
| MPC designation | 641 Agnes |
|
Named after
|
unknown[2] |
| 1907 ZX · 1952 FD1 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 107.90 yr (39,411 days) |
| Aphelion | 2.5053 AU |
| Perihelion | 1.9338 AU |
| 2.2195 AU | |
| Eccentricity | 0.1287 |
| 3.31 yr (1,208 days) | |
| 156.84° | |
| Inclination | 1.7120° |
| 41.021° | |
| 17.808° | |
| Physical characteristics | |
| Dimensions | 9.24±0.64 km[4] 9.45±0.17 km[5] 9±2 km[6] 8.81 km (calculated)[3] |
| 178.0±0.1 h[6] 8.9 h[7] |
|
| 0.299±0.044[4] 0.217±0.043[5] 0.20±0.07[6] |
|
| S [3] | |
| 12.4[1] | |
641 Agnes, provisional designation 1907 ZX, is a stony asteroid and slow rotator from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered on 8 September 1907, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany.[8]
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,208 days). Its orbit is tilted by 2 degrees to the plane of the ecliptic and shows an eccentricity of 0.13.[1] The asteroid has a notably long rotation period of 178 hours[6] and an albedo in the range of 0.20 to 0.30, according to the surveys carried out by the Japanese Akari satellite and the U.S Wide-field Infrared Survey Explorer with its NEOWISE mission, as well as further ground-based observations.[4][5][6]
Any reference of this name to a person or occurrence is unknown.[2]
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 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 6.3 6.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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
- Occultation of Star HIP 103032 by 641 Agnes
- 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
- 641 Agnes at the JPL Small-Body Database
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