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Discovery
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| Discovered by | Johann Palisa |
| Discovery date | September 10, 1882 |
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Designations
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| Named after | Vienna |
| Alternate name(s) | 1962 UJ |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 505.56 Gm (3.379 AU) |
| Perihelion | 367.586 Gm (2.457 AU) |
| Semi-major axis | 436.573 Gm (2.918 AU) |
| Eccentricity | 0.158 |
| Orbital period | 1820.907 d (4.99 a) |
| Average orbital speed | 17.44 km/s |
| Mean anomaly | 264.553° |
| Inclination | 5.102° |
| Longitude of ascending node | 350.928° |
| Argument of perihelion | 267.314° |
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Physical characteristics
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| Dimensions | 82.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 5.547 h |
| Albedo | 0.055 |
| Temperature | unknown |
| Spectral type | unknown |
| Absolute magnitude (H) | 9.2 |
231 Vindobona is a large Main belt asteroid. Its dark surface indicates a carbon-rich composition.
It was discovered by Johann Palisa on September 10, 1882.
Vindobona is the Latin name for Vienna, Austria, the city where the discovery was made.
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