(840) Zenobia Main-belt Asteroid
Discovered on 25 September 1916 by M. F. Wolf at Heidelberg.
Where Zenobia is today
Seen from above the solar system on 2026-10-14: Zenobia is 2.83 au from the Sun and 2.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 840 |
| Provisional designation | A916 SN |
| Orbit class | Main-belt Asteroid |
| Diameter | 27.3 km (#1,528 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.232 |
| Rotation period | 5.57 hours |
| Absolute magnitude (H) | 10.06 |
| Orbital period | 5.54 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.81 – 3.45 au |
| Eccentricity | 0.103 |
| Inclination | 9.98° |
| Closest distance between its orbit and Earth's (MOID) | 1.79 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by M. F. Wolf
- (323) Brucia
- (325) Heidelberga
- (328) Gudrun
- (329) Svea
- (330) Adalberta
- (332) Siri
- (333) Badenia
- (334) Chicago
- (339) Dorothea
- (340) Eduarda
- (341) California
- (342) Endymion
← (839) Valborg · (841) Arabella →