(1155) Aenna Main-belt Asteroid
Discovered on 26 January 1928 by K. Reinmuth at Heidelberg.
Where Aenna is today
Seen from above the solar system on 2026-10-14: Aenna is 2.70 au from the Sun and 1.74 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1155 |
| Provisional designation | 1928 BD |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.28 km (#5,558 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.356 |
| Rotation period | 8.07 hours |
| Spectral type | Xe |
| Absolute magnitude (H) | 12.01 |
| Orbital period | 3.87 years |
| Semi-major axis | 2.46 au |
| Perihelion – aphelion | 2.05 – 2.87 au |
| Eccentricity | 0.166 |
| Inclination | 6.59° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 January 1928
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
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