(6031) Ryokan Main-belt Asteroid
Discovered on 26 January 1982 by Kosai, H., Hurukawa, K. at Kiso.
Where Ryokan is today
Seen from above the solar system on 2026-10-14: Ryokan is 3.02 au from the Sun and 2.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6031 |
| Provisional designation | 1982 BQ4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.7 km (#2,964 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.185 |
| Absolute magnitude (H) | 11.7 |
| Orbital period | 5.24 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.93 – 3.10 au |
| Eccentricity | 0.0287 |
| Inclination | 10.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.92 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by Kosai, H., Hurukawa, K.
- (2271) Kiso
- (2330) Ontake
- (2470) Agematsu
- (2924) Mitake-mura
- (2960) Ohtaki
- (3111) Misuzu
- (3249) Musashino
- (3291) Dunlap
- (3319) Kibi
- (3320) Namba
- (3391) Sinon
- (3607) Naniwa
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