(5468) Hamatonbetsu Main-belt Asteroid
Discovered on 16 January 1988 by Mukai, M., Takeishi, M. at Kagoshima.
Where Hamatonbetsu is today
Seen from above the solar system on 2026-10-14: Hamatonbetsu is 2.95 au from the Sun and 2.85 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5468 |
| Provisional designation | 1988 BK |
| Orbit class | Main-belt Asteroid |
| Diameter | 23.9 km (#1,780 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0480 |
| Rotation period | 42.0 hours |
| Absolute magnitude (H) | 12.45 |
| Orbital period | 4.87 years |
| Semi-major axis | 2.87 au |
| Perihelion – aphelion | 2.23 – 3.52 au |
| Eccentricity | 0.223 |
| Inclination | 12.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 January 1988
- (4100) Sumiko
- (4156) Okadanoboru
- (4218) Demottoni
- (4634) Shibuya
- (4703) Kagoshima
- (5348) Kennoguchi
- (10731) Dollyparton