(11921) Mitamasahiro Main-belt Asteroid
Discovered on 26 October 1992 by Endate, K., Watanabe, K. at Kitami.
Masahiro Mita (b. 1948) is a well-known writer. In 1977 he won the Akutagawa Prize, which is one of the most important prizes in Japan for a novelist.Naming citation (20030910/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mitamasahiro is today
Seen from above the solar system on 2026-10-14: Mitamasahiro is 2.72 au from the Sun and 2.93 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11921 |
| Provisional designation | 1992 UN3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.3 km (#3,302 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Absolute magnitude (H) | 13.0 |
| Orbital period | 4.42 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.65 – 2.73 au |
| Eccentricity | 0.0154 |
| Inclination | 14.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Masahiro
All asteroids named after someone called Masahiro
Also discovered on 26 October 1992
- (5855) Yukitsuna
- (6022) Jyuro
- (6023) Tsuyashima
- (6337) Shiota
- (6338) Isaosato
- (6460) Bassano
- (6498) Ko
- (7590) Aterui
- (8036) Maehara
- (8294) Takayuki
- (8295) Toshifukushima
- (8874) Showashinzan