Discovery | |
---|---|
Discovered by | Johann Palisa |
Discovery date | 10 September 1882 |
Designations | |
MPC designation | (231) Vindobona |
Named after
|
Vienna |
1962 UJ | |
Main belt | |
Orbital characteristics | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 131.05 yr (47865 d) |
Aphelion | 3.3648 AU (503.37 Gm) |
Perihelion | 2.4810 AU (371.15 Gm) |
2.9229 AU (437.26 Gm) | |
Eccentricity | 0.15120 |
5.00 yr (1825.2 d) | |
Average orbital speed
|
17.44 km/s |
12.6140° | |
0° 11m 50.064s / day | |
Inclination | 5.1021° |
350.535° | |
268.609° | |
Earth MOID | 1.47235 AU (220.260 Gm) |
Jupiter MOID | 1.7388 AU (260.12 Gm) |
Jupiter Tisserand parameter | 3.256 |
Physical characteristics | |
Dimensions | ±2.1 km 82.33 |
14.245 h (0.5935 d) | |
±0.003 0.0545 | |
9.6 | |
231 Vindobona is a large Main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on September 10, 1882. Vindobona is the Latin name for Vienna, Austria, the city where the discovery was made.
Its dark surface indicates a carbon-rich composition.
Photometric observations at the Organ Mesa Observatory in New Mexico during 2012 showed a rotation period of 14.245 ± 0.001 hours with a brightness variation of 0.20 ± 0.03 in magnitude. This is in agreement with previous results.