(579) Sidonia Main-belt Asteroid
Discovered on 3 November 1905 by A. Kopff at Heidelberg.
Where Sidonia is today
Seen from above the solar system on 2026-10-14: Sidonia is 3.20 au from the Sun and 3.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 579 |
| Provisional designation | A905 VK |
| Orbit class | Main-belt Asteroid |
| Diameter | 85.6 km (#327 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.175 |
| Rotation period | 16.3 hours |
| Spectral type | S |
| Absolute magnitude (H) | 8.01 |
| Orbital period | 5.23 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.78 – 3.24 au |
| Eccentricity | 0.0760 |
| Inclination | 11.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.78 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 3 November 1905
More named asteroids discovered by A. Kopff
- (582) Olympia
- (584) Semiramis
- (585) Bilkis
- (589) Croatia
- (591) Irmgard
- (593) Titania
- (595) Polyxena
- (596) Scheila
- (606) Brangane
- (607) Jenny
- (608) Adolfine
- (612) Veronika
← (578) Happelia · (580) Selene →