4151 Alanhale
| Discovery | |
|---|---|
| Discovered by | C. S. Shoemaker E. M. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 24 April 1985 |
| Designations | |
| (4151) Alanhale | |
Named after | Alan Hale (astronomer) |
| 1985 HV1 · 1968 HD 1976 SO1 · 1979 FX1 1982 SZ4 · 1985 JX | |
| main-belt · Themis | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 48.95 yr (17,878 days) |
| Aphelion | 3.5904 AU |
| Perihelion | 2.7017 AU |
| 3.1461 AU | |
| Eccentricity | 0.1412 |
| 5.58 yr (2,038 days) | |
| 346.46° | |
| 0° 10m 35.76s / day | |
| Inclination | 1.0079° |
| 67.051° | |
| 75.088° | |
| Physical characteristics | |
| Dimensions | 15.37 km (calculated) 19.526±0.269 km 22.66±0.59 km |
| 11.9177±0.0047 h | |
| 0.045±0.006 0.0734±0.0099 0.08 (assumed) | |
| C | |
| 11.976±0.003 (R) · 12.0 · 12.20 · 12.3 · 12.43 · 12.78±0.21 | |
4151 Alanhale, provisional designation 1985 HV1, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 19 kilometers in diameter. It was discovered by the American astronomer couple Carolyn and Eugene Shoemaker at the U.S. Palomar Observatory, California, on 24 April 1985. It was named for American astronomer Alan Hale.