(930) Westphalia Main-belt Asteroid
Discovered on 10 March 1920 by W. Baade at Bergedorf.
Where Westphalia is today
Seen from above the solar system on 2026-10-14: Westphalia is 2.44 au from the Sun and 3.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 930 |
| Provisional designation | A920 EE |
| Orbit class | Main-belt Asteroid |
| Diameter | 34.9 km (#1,153 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0320 |
| Rotation period | 101 hours |
| Spectral type | Ch |
| Absolute magnitude (H) | 11.33 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 2.08 – 2.78 au |
| Eccentricity | 0.144 |
| Inclination | 15.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.