1681 Steinmetz
Shape model of Steinmetz from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Obs. |
| Discovery date | 23 November 1948 |
| Designations | |
| (1681) Steinmetz | |
Named after | Julius Steinmetz (amateur astronomer) |
| 1948 WE · 1926 YA 1936 BE · 1939 VC 1945 ED · 1957 YH 1958 AE · A914 DB | |
| main-belt · (middle) | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 103.18 yr (37,688 days) |
| Aphelion | 3.2486 AU |
| Perihelion | 2.1443 AU |
| 2.6965 AU | |
| Eccentricity | 0.2048 |
| 4.43 yr (1,617 days) | |
| 169.22° | |
| 0° 13m 21.36s / day | |
| Inclination | 7.2063° |
| 94.373° | |
| 1.6555° | |
| Physical characteristics | |
| Dimensions | 14.58±0.75 km 16.159±0.342 km 20.49 km (calculated) |
| 8.99917±0.00007 h | |
| 0.10 (assumed) 0.161±0.041 0.204±0.024 | |
| Tholen = S · S B–V = 0.878 U–B = 0.447 | |
| 11.37±0.33 · 11.56 | |
1681 Steinmetz, provisional designation 1948 WE, is a stony asteroid from the central region of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 23 November 1948, by French astronomer Marguerite Laugier at Nice Observatory in south-eastern France. It was named after German amateur astronomer Julius Steinmetz.