(132) Aethra Mars-crossing Asteroid
Discovered on 13 June 1873 by J. C. Watson at Ann Arbor.
Where Aethra is today
Seen from above the solar system on 2026-10-14: Aethra is 3.62 au from the Sun and 3.05 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 132 |
| Provisional designation | A873 LA |
| Orbit class | Mars-crossing Asteroid |
| Diameter | 42.9 km (#899 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.199 |
| Rotation period | 5.17 hours |
| Spectral type | M |
| Absolute magnitude (H) | 8.96 |
| Orbital period | 4.22 years |
| Semi-major axis | 2.61 au |
| Perihelion – aphelion | 1.60 – 3.62 au |
| Eccentricity | 0.387 |
| Inclination | 25.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.782 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. C. Watson
- (79) Eurynome
- (93) Minerva
- (94) Aurora
- (100) Hekate
- (101) Helena
- (103) Hera
- (104) Klymene
- (105) Artemis
- (106) Dione
- (115) Thyra
- (119) Althaea
- (121) Hermione
← (131) Vala · (133) Cyrene →