(2643) Bernhard Main-belt Asteroid
Discovered on 19 September 1973 by T. Gehrels at Palomar.
Where Bernhard is today
Seen from above the solar system on 2026-10-14: Bernhard is 2.94 au from the Sun and 3.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2643 |
| Provisional designation | 1973 SD |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.95 km (#12,862 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.284 |
| Rotation period | 95.0 hours |
| Absolute magnitude (H) | 14.57 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.72 – 3.03 au |
| Eccentricity | 0.274 |
| Inclination | 23.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.836 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 September 1973
- (3290) Azabu
- (3548) Eurybates
- (4007) Euryalos
- (4068) Menestheus
- (4138) Kalchas
- (4230) van den Bergh
- (4387) Tanaka
- (4757) Liselotte
- (5041) Theotes
- (5928) Pindarus
- (7152) Euneus
- (7214) Anticlus