(649) Josefa Main-belt Asteroid
Discovered on 11 September 1907 by A. Kopff at Heidelberg.
Where Josefa is today
Seen from above the solar system on 2026-10-14: Josefa is 2.82 au from the Sun and 3.05 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 649 |
| Provisional designation | A907 RO |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.73 km (#6,847 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.345 |
| Rotation period | 10.5 hours |
| Spectral type | Sq |
| Absolute magnitude (H) | 12.88 |
| Orbital period | 4.07 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 1.84 – 3.26 au |
| Eccentricity | 0.278 |
| Inclination | 12.7° |
| Closest distance between its orbit and Earth's (MOID) | 0.832 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 11 September 1907
More named asteroids discovered by A. Kopff
- (579) Sidonia
- (582) Olympia
- (584) Semiramis
- (585) Bilkis
- (589) Croatia
- (591) Irmgard
- (593) Titania
- (595) Polyxena
- (596) Scheila
- (606) Brangane
- (607) Jenny
- (608) Adolfine
← (648) Pippa · (650) Amalasuntha →