1690 Mayrhofer
| Discovery | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Obs. |
| Discovery date | 8 November 1948 |
| Designations | |
| (1690) Mayrhofer | |
Named after | Karl Mayrhofer (amateur astronomer) |
| 1948 VB · 1932 WN 1953 VC2 · 1956 GN | |
| main-belt · (outer) | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.11 yr (30,723 days) |
| Aphelion | 3.3376 AU |
| Perihelion | 2.7395 AU |
| 3.0386 AU | |
| Eccentricity | 0.0984 |
| 5.30 yr (1,935 days) | |
| 24.198° | |
| 0° 11m 9.96s / day | |
| Inclination | 13.049° |
| 230.45° | |
| 156.46° | |
| Physical characteristics | |
| Dimensions | 31.18±0.49 km 31.198±7.539 km 31.63 km (derived) 31.71±2.0 km 33.810±1.378 km |
| 19.0808±0.1110 h 22.194±0.004 h | |
| 0.056±0.012 0.0641 (derived) 0.0767±0.011 0.0792±0.0384 0.082±0.003 | |
| C | |
| 10.9 · 10.91±0.34 · 10.950±0.004 (R) · 11.1 | |
1690 Mayrhofer, provisional designation 1948 VB, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 8 November 1948, by French astronomer Marguerite Laugier at Nice Observatory in south-east France. It was later named after Austrian amateur astronomer Karl Mayrhofer.