(9642) Takatahiro Main-belt Asteroid
Discovered on 1 September 1994 by Endate, K., Watanabe, K. at Kitami.
Hiroyuki Takata (b. 1961) is a Japanese amateur astronomer and chief editor of the newsletter of the Chiba Science Society. He is an astronomy scholar and popularizer of astronomy throughout Chiba prefecture.Naming citation (20030106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Takatahiro is today
Seen from above the solar system on 2026-10-14: Takatahiro is 2.89 au from the Sun and 3.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9642 |
| Provisional designation | 1994 RU |
| Orbit class | Main-belt Asteroid |
| Rotation period | 5.52 hours |
| Absolute magnitude (H) | 14.65 |
| Orbital period | 3.78 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 1.96 – 2.90 au |
| Eccentricity | 0.193 |
| Inclination | 3.00° |
| Closest distance between its orbit and Earth's (MOID) | 0.950 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Hiroyuki
- (7186) Tomioka
- (11072) Hiraoka
- (11928) Akimotohiro
- (19392) Oyamada
- (27816) Naitohiroyuki
- (30925) Todahiroyuki
- (31402) Negishi
- (46649) Tsudahiroyuki
All asteroids named after someone called Hiroyuki