(8100) Nobeyama Main-belt Asteroid
Discovered on 4 December 1993 by Hirasawa, M., Suzuki, S. at Nyukasa.
Named for a village in central Japan, famous for its beautiful scenery and night sky. Nobeyama Radio Observatory is located here.Naming citation (19980610/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nobeyama is today
Seen from above the solar system on 2026-10-14: Nobeyama is 2.82 au from the Sun and 3.37 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8100 |
| Provisional designation | 1993 XF |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.67 km (#8,031 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.250 |
| Absolute magnitude (H) | 13.19 |
| Orbital period | 4.58 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.53 – 2.99 au |
| Eccentricity | 0.0833 |
| Inclination | 3.31° |
| Closest distance between its orbit and Earth's (MOID) | 1.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.