(9104) Matsuo Main-belt Asteroid
Discovered on 20 December 1996 by T. Kobayashi at Oizumi.
Atsushi Matsuo (b. 1955) is on the research and educational staff of the Yamaguchi Museum. He has been working in astronomy education for more than 20 years and has written many articles on astronomy history and education.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Matsuo is today
Seen from above the solar system on 2026-10-14: Matsuo is 3.02 au from the Sun and 3.30 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9104 |
| Provisional designation | 1996 YB |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.62 km (#6,052 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Rotation period | 5.17 hours |
| Absolute magnitude (H) | 13.99 |
| Orbital period | 4.65 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.34 – 3.24 au |
| Eccentricity | 0.161 |
| Inclination | 8.53° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Atsushi
- (8098) Miyamotoatsushi
- (21120) Naritaatsushi
- (27982) Atsushimiyazaki
- (43926) Takanoatsushi
- (85308) Atsushimori
All asteroids named after someone called Atsushi