1985 Hopmann
Shape of Hopmann modeled from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 13 January 1929 |
| Designations | |
| (1985) Hopmann | |
Named after | Josef Hopmann (German astronomer) |
| 1929 AE · 1951 CA2 1951 CP · 1952 KE 1964 PJ · 1973 AA4 | |
| main-belt · (outer) | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.16 yr (32,201 days) |
| Aphelion | 3.6021 AU |
| Perihelion | 2.6408 AU |
| 3.1214 AU | |
| Eccentricity | 0.1540 |
| 5.51 yr (2,014 days) | |
| 334.27° | |
| 0° 10m 43.32s / day | |
| Inclination | 17.159° |
| 305.15° | |
| 234.25° | |
| Physical characteristics | |
| 35.47 km (derived) 35.51±3.1 km (IRAS:6) 44.33±3.53 km | |
| 17.476±0.003 h 17.478±0.004 h 17.4787±0.0001 h 17.480±0.002 h | |
| 0.039±0.007 (IRAS:6) 0.0613 (derived) | |
| C | |
| 10.75±0.19 · 10.9 · 10.91 | |
1985 Hopmann (prov. designation: 1929 AE) is a dark background asteroid in the outer regions of the asteroid belt. It was discovered on 13 January 1929, by astronomer Karl Reinmuth at Landessternwarte Heidelberg-Königstuhl in southern Germany. The asteroid has a rotation period of 17.5 hours and measures approximately 36 kilometers (22 miles) in diameter. It was later named after German astronomer Josef Hopmann (1890–1975).