(12663) Bjorkegren Main-belt Asteroid
Discovered on 2 September 1978 by C.-I. Lagerkvist at La Silla.
Named after the family Björkegren, friends and neighbors of the discoverer's summer house on Gotland.Naming citation (WGSBN Bull. 3, #12, 13), IAU / Minor Planet Center, via NASA/JPL
Where Bjorkegren is today
Seen from above the solar system on 2026-10-14: Bjorkegren is 3.10 au from the Sun and 4.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12663 |
| Provisional designation | 1978 RL7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.24 km (#10,163 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.281 |
| Absolute magnitude (H) | 13.9 |
| Orbital period | 4.96 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.69 – 3.13 au |
| Eccentricity | 0.0742 |
| Inclination | 1.08° |
| Closest distance between its orbit and Earth's (MOID) | 1.70 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 September 1978
- (4310) Stromholm
- (7047) Lundstrom
- (8786) Belskaya
- (9265) Ekman
- (9266) Holger
- (9267) Lokrume
- (10013) Stenholm
- (10265) Gunnarsson
- (10458) Sfranke
- (10997) Gahm
- (11256) Fuglesang
- (13908) Wolbern