(10117) Tanikawa Main-belt Asteroid
Discovered on 1 October 1992 by Yanai, M., Watanabe, K. at Kitami.
Kiyotaka Tanikawa (b. 1944) is an associate professor at the National Astronomical Observatory of Japan who specializes in the study of the three-body problem.Naming citation (20020328/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tanikawa is today
Seen from above the solar system on 2026-10-14: Tanikawa is 3.26 au from the Sun and 4.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10117 |
| Provisional designation | 1992 TW |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.14 km (#5,655 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.160 |
| Rotation period | 6.88 hours |
| Absolute magnitude (H) | 13.24 |
| Orbital period | 5.13 years |
| Semi-major axis | 2.97 au |
| Perihelion – aphelion | 2.63 – 3.32 au |
| Eccentricity | 0.116 |
| Inclination | 10.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Kiyotaka
All asteroids named after someone called Kiyotaka