1681 Steinmetz
| Discovery [1] | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Observatory |
| Discovery date | 23 November 1948 |
| Designations | |
| MPC designation | 1681 Steinmetz |
|
Named after
|
Julius Steinmetz (amateur astronomer)[2] |
| 1948 WE · 1926 YA 1936 BE · 1939 VC 1945 ED · 1957 YH 1958 AE · A914 DB |
|
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 101.62 yr (37,115 days) |
| Aphelion | 3.2463 AU |
| Perihelion | 2.1482 AU |
| 2.6973 AU | |
| Eccentricity | 0.2035 |
| 4.43 yr (1,618 days) | |
| 351.09° | |
| Inclination | 7.2049° |
| 94.443° | |
| 1.8057° | |
| Physical characteristics | |
| Dimensions | 14.58±0.75 km[4] 16.16±0.34 km[5] 20.49 km (caculated)[3] |
| 8.99917 h[6] | |
| 0.204±0.024[4] 0.161±0.041[5] 0.10 (assumed)[3] |
|
| B–V = 0.878 U–B = 0.447 Tholen = S S [3] |
|
| 11.56 | |
1681 Steinmetz, provisional designation 1948 WE, is a stony asteroid from the middle region of the asteroid belt, about 16 kilometers in diameter. It was discovered on 23 November 1948 by French female astronomer Marguerite Laugier at Nice Observatory in south-eastern France.[7]
The S-type asteroid orbits the Sun at a distance of 2.1–3.2 AU once every 4 years and 5 months (1,618 days). Its orbit shows an eccentricity of 0.20 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 9.0 hours[6] and an albedo of 0.16–0.20, according to Akari and WISE/NEOWISE, while the Lightcurve Datatbase project assumes a somewhat lower albedo of 0.10.[3][4][5]
According to a proposal by Otto Kippes, who verified the discovery, it was named after Julius Steinmetz (1893–1965), a German amateur astronomer, orbit computer, and pastor from Gerolfingen in Bavaria.[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 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 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
- 1681 Steinmetz at the JPL Small-Body Database
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