(931) Whittemora Main-belt Asteroid
Discovered on 19 March 1920 by F. Gonnessiat at Algiers.
Where Whittemora is today
Seen from above the solar system on 2026-10-14: Whittemora is 2.56 au from the Sun and 2.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 931 |
| Provisional designation | A920 FB |
| Orbit class | Main-belt Asteroid |
| Diameter | 45.3 km (#850 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.170 |
| Rotation period | 19.2 hours |
| Spectral type | M |
| Absolute magnitude (H) | 9.35 |
| Orbital period | 5.64 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.43 – 3.91 au |
| Eccentricity | 0.234 |
| Inclination | 11.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.45 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.