(161) Athor Main-belt Asteroid
Discovered on 19 April 1876 by J. C. Watson at Ann Arbor.
Where Athor is today
Seen from above the solar system on 2026-10-14: Athor is 2.43 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 161 |
| Provisional designation | A876 HA |
| Orbit class | Main-belt Asteroid |
| Diameter | 41.0 km (#946 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.230 |
| Rotation period | 7.28 hours |
| Spectral type | M |
| Absolute magnitude (H) | 9.29 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 2.05 – 2.71 au |
| Eccentricity | 0.138 |
| Inclination | 9.05° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 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
← (160) Una · (162) Laurentia →