(391) Ingeborg Mars-crossing Asteroid
Discovered on 1 November 1894 by M. F. Wolf at Heidelberg.
Where Ingeborg is today
Seen from above the solar system on 2026-10-14: Ingeborg is 2.93 au from the Sun and 3.71 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 391 |
| Provisional designation | A894 VB |
| Orbit class | Mars-crossing Asteroid |
| Diameter | 15.8 km (#2,945 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.290 |
| Rotation period | 26.4 hours |
| Spectral type | S |
| Absolute magnitude (H) | 10.85 |
| Orbital period | 3.54 years |
| Semi-major axis | 2.32 au |
| Perihelion – aphelion | 1.61 – 3.03 au |
| Eccentricity | 0.305 |
| Inclination | 23.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.644 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
← (390) Alma · (392) Wilhelmina →