(1251) Hedera Main-belt Asteroid
Discovered on 25 January 1933 by K. Reinmuth at Heidelberg.
Where Hedera is today
Seen from above the solar system on 2026-10-14: Hedera is 2.62 au from the Sun and 2.35 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1251 |
| Provisional designation | 1933 BE |
| Orbit class | Main-belt Asteroid |
| Diameter | 13.2 km (#3,633 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.636 |
| Rotation period | 19.9 hours |
| Spectral type | E |
| Absolute magnitude (H) | 10.9 |
| Orbital period | 4.48 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.29 – 3.14 au |
| Eccentricity | 0.156 |
| Inclination | 6.05° |
| Closest distance between its orbit and Earth's (MOID) | 1.29 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.