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Discovery
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| Discovered by | Reinmuth, K. |
| Discovery site | Heidelberg |
| Discovery date | October 10, 1931 |
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Designations
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| MPC designation | 1231 |
| Named after | Primula auricula |
| Alternate name(s) | 1931 TE2 |
| Epoch May 14, 2008 | |
| Ap | 2.8927599 |
| Peri | 2.4449555 |
| Eccentricity | 0.0838944 |
| Orbital period | 1592.5260981 |
| Mean anomaly | 345.61020 |
| Inclination | 11.48564 |
| Longitude of ascending node | 342.12312 |
| Argument of peri | 246.95583 |
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Physical characteristics
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| Albedo | 0.0798 |
| Absolute magnitude (H) | 11.60 |
1231 Auricula (1931 TE2) is a main-belt asteroid discovered on October 10, 1931 by Karl Wilhelm Reinmuth at Heidelberg.
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