(1643) Brown Main-belt Asteroid
Discovered on 4 September 1951 by K. Reinmuth at Heidelberg.
👶 Brown as a baby name🐶 Brown as a dog name
Where Brown is today
Seen from above the solar system on 2026-10-14: Brown is 2.05 au from the Sun and 1.31 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1643 |
| Provisional designation | 1951 RQ |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.51 km (#5,411 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.179 |
| Rotation period | 5.93 hours |
| Absolute magnitude (H) | 12.44 |
| Orbital period | 3.93 years |
| Semi-major axis | 2.49 au |
| Perihelion – aphelion | 1.99 – 2.99 au |
| Eccentricity | 0.202 |
| Inclination | 3.51° |
| Closest distance between its orbit and Earth's (MOID) | 0.992 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 4 September 1951
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (1642) Hill · (1644) Rafita →