(1231) Auricula Main-belt Asteroid
Discovered on 10 October 1931 by K. Reinmuth at Heidelberg.
Where Auricula is today
Seen from above the solar system on 2026-10-14: Auricula is 2.59 au from the Sun and 2.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1231 |
| Provisional designation | 1931 TE2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.7 km (#2,391 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0660 |
| Rotation period | 3.98 hours |
| Absolute magnitude (H) | 12.22 |
| Orbital period | 4.36 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.44 – 2.90 au |
| Eccentricity | 0.0872 |
| Inclination | 11.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.46 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 October 1931
- (1232) Cortusa
- (1233) Kobresia
- (1271) Isergina
- (1272) Gefion
- (2855) Bastian
- (3144) Brosche
- (11434) Lohnert
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (1230) Riceia · (1232) Cortusa →