(630) Euphemia Main-belt Asteroid
Discovered on 7 March 1907 by A. Kopff at Heidelberg.
Where Euphemia is today
Seen from above the solar system on 2026-10-14: Euphemia is 2.50 au from the Sun and 3.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 630 |
| Provisional designation | A907 EM |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.5 km (#3,003 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.291 |
| Rotation period | 350 hours |
| Absolute magnitude (H) | 11.2 |
| Orbital period | 4.25 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.33 – 2.92 au |
| Eccentricity | 0.112 |
| Inclination | 13.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.