19139 Apian
| Discovery | |
|---|---|
| Discovered by | F. Börngen |
| Discovery site | Karl Schwarzschild Obs. |
| Discovery date | 6 April 1989 |
| Designations | |
| (19139) Apian | |
Named after | Petrus Apianus (German humanist) |
| 1989 GJ8 · 1999 XP18 | |
| main-belt · (middle) background | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 28.09 yr (10,261 days) |
| Aphelion | 2.7824 AU |
| Perihelion | 2.3841 AU |
| 2.5832 AU | |
| Eccentricity | 0.0771 |
| 4.15 yr (1,516 days) | |
| 105.06° | |
| 0° 14m 14.64s / day | |
| Inclination | 8.0241° |
| 48.222° | |
| 336.68° | |
| Physical characteristics | |
| Dimensions | 5.643±0.089 km |
| 0.265±0.039 | |
| 13.5 | |
19139 Apian (provisional designation 1989 GJ8) is a bright background asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 6 April 1989, by German astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, Eastern Germany. The asteroid was named for medieval German humanist Petrus Apianus.