(157) Dejanira Main-belt Asteroid
Discovered on 1 December 1875 by A. Borrelly at Marseilles.
Where Dejanira is today
Seen from above the solar system on 2026-10-14: Dejanira is 2.89 au from the Sun and 3.68 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 157 |
| Provisional designation | A875 XA |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.0 km (#2,206 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.173 |
| Rotation period | 15.8 hours |
| Absolute magnitude (H) | 11.18 |
| Orbital period | 4.14 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.07 – 3.09 au |
| Eccentricity | 0.198 |
| Inclination | 12.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Borrelly
- (99) Dike
- (110) Lydia
- (117) Lomia
- (120) Lachesis
- (146) Lucina
- (171) Ophelia
- (172) Baucis
- (173) Ino
- (198) Ampella
- (233) Asterope
- (240) Vanadis
- (246) Asporina
← (156) Xanthippe · (158) Koronis →