Discovery[1] | |
---|---|
Discovered by | F. Börngen |
Discovery site | Karl Schwarzschild Obs. |
Discovery date | 6 April 1989 |
Designations | |
(19139) Apian | |
Named after | Petrus Apianus[2][3] (German humanist) |
1989 GJ8 · 1999 XP18 | |
main-belt · (middle) background[4] | |
Orbital characteristics[1] | |
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[5] |
0.265±0.039[5] | |
13.5[1] | |
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.[2][3]
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