(12810) Okumiomote Main-belt Asteroid
Discovered on 17 January 1996 by Endate, K., Watanabe, K. at Kitami.
Okumiomote is the site, in northern Niigata prefecture, of a community among the mountains in Asahi village. Many underground ruins and a stone circle, built 4000 years ago, have been discovered. The site was submerged by the damming of a river in 2000.Naming citation (20081113/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Okumiomote is today
Seen from above the solar system on 2026-10-14: Okumiomote is 2.90 au from the Sun and 3.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12810 |
| Provisional designation | 1996 BV |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.06 km (#12,598 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.269 |
| Absolute magnitude (H) | 14.34 |
| Orbital period | 4.15 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 1.97 – 3.19 au |
| Eccentricity | 0.235 |
| Inclination | 14.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.