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Discovery
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| Discovered by | Johann Palisa |
| Discovery date | September 3, 1885 |
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Designations
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| Alternate name(s) | n/a |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 530.06 Gm (3.543 AU) |
| Perihelion | 412.522 Gm (2.758 AU) |
| Semi-major axis | 471.291 Gm (3.15 AU) |
| Eccentricity | 0.125 |
| Orbital period | 2042.375 d (5.59 a) |
| Average orbital speed | 16.78 km/s |
| Mean anomaly | 37.531° |
| Inclination | 12.844° |
| Longitude of ascending node | 24.1° |
| Argument of perihelion | 75.087° |
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Physical characteristics
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| Dimensions | 80.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 5.054 h |
| Albedo | 0.258 |
| Temperature | unknown |
| Spectral type | M |
| Absolute magnitude (H) | 7.58 |
250 Bettina is a large Main belt asteroid. It is classified as an M-type asteroid.
It was discovered by Johann Palisa on September 3, 1885 in Vienna. It was named in honour of Baroness Bettina von Rothschild, the wife of the prominent Viennese banker Albert Salomon von Rothschild who had bought the naming rights for £50[1].
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