(13163) Koyamachuya Main-belt Asteroid
Discovered on 28 October 1995 by Endate, K., Watanabe, K. at Kitami.
Japanese cartoonist Chuya Koyama (b. 1978) created Ucyu Kyodai (Space Brothers), a scientific comic featuring the universe and the future. He has won numerous awards.Naming citation (WGSBN Bull. 3, #12, 8), IAU / Minor Planet Center, via NASA/JPL
Where Koyamachuya is today
Seen from above the solar system on 2026-10-14: Koyamachuya is 2.17 au from the Sun and 1.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13163 |
| Provisional designation | 1995 UC45 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.70 km (#9,404 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.230 |
| Absolute magnitude (H) | 13.65 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 2.12 – 2.44 au |
| Eccentricity | 0.0698 |
| Inclination | 10.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 28 October 1995
- (7494) Xiwanggongcheng
- (9090) Chirotenmondai
- (9215) Taiyonoto
- (16719) Mizokami
- (17617) Takimotoikuo
- (22416) Tanimotoyoshi