1695 Walbeck
| Discovery [1] | |
|---|---|
| Discovered by | L. Oterma |
| Discovery site | Turku Observatory |
| Discovery date | 15 October 1941 |
| Designations | |
| MPC designation | 1695 Walbeck |
|
Named after
|
Henrik Walbeck (geodesist)[2] |
| 1941 UO · 1964 QA 1964 RE |
|
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 74.01 yr (27,033 days) |
| Aphelion | 3.5940 AU |
| Perihelion | 1.9697 AU |
| 2.7819 AU | |
| Eccentricity | 0.2919 |
| 4.64 yr (1,695 days) | |
| 331.59° | |
| Inclination | 16.703° |
| 218.46° | |
| 139.46° | |
| Physical characteristics | |
| Dimensions | 19.62 km[4] 19.84±0.29 km[5] 18.953±0.258 km[6] 17.88±0.27 km[7] |
| 5.1607 h[8] 5.3 h[9] |
|
| 0.0504[4] 0.051±0.002[5] 0.0425±0.0058[6] 0.037±0.007[7] 0.0503 (derived)[3] |
|
| SMASS = Cg C [3] |
|
| 12.5 | |
1695 Walbeck, provisional designation 1941 UO, is an eccentric, carbonaceous asteroid from the outer region of the asteroid belt, about 19 kilometers in diameter. It was discovered by Finnish female astronomer Liisi Oterma at Turku Observatory on 15 October 1941.[10]
The Cg-type asteroid orbits the Sun at a distance of 2.0–3.6 AU once every 4 years and 8 months (1,695 days). Its orbit shows a relatively high eccentricity of 0.29 and is significantly tilted by 17 degrees towards the plane of the ecliptic. It has a rotation period of 5.2 hours[8][9] and an albedo in the range of 0.03–0.06, according to the surveys carried out by IRAS, Akari, WISE and NEOWISE.[4][5][6][7]
The minor planet was named in memory of Finnish scientist Henrik Johan Walbeck (1793–1822), astronomer and geodesist at the old Academia Aboensis who used the method of least squares to derive a good value for the Earth's flattening.[2]
References
- ↑ 1.0 1.1 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 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.
- ↑ 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 Geneve, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1695 Walbeck at the JPL Small-Body Database
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