(3383) Koyama Main-belt Asteroid
Discovered on 9 January 1951 by K. Reinmuth at Heidelberg.
Where Koyama is today
Seen from above the solar system on 2026-10-14: Koyama is 2.45 au from the Sun and 2.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3383 |
| Provisional designation | 1951 AB |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.6 km (#4,767 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.273 |
| Rotation period | 112 hours |
| Absolute magnitude (H) | 12.33 |
| Orbital period | 4.11 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 2.44 – 2.69 au |
| Eccentricity | 0.0476 |
| Inclination | 14.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.44 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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
← (3382) Cassidy · (3384) Daliya →