(7160) Tokunaga Main-belt Asteroid
Discovered on 24 October 1981 by S. J. Bus at Palomar.
University of Hawaii astronomer Alan T. Tokunaga (b. 1949) specializes in studies of star formation and solar system astronomy and in the development of infrared instrumentation. Since Apr. 2000 he has served as division chief for the NASA Infrared Telescope Facility on Mauna Kea.Naming citation (20050721/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tokunaga is today
Seen from above the solar system on 2026-10-14: Tokunaga is 2.97 au from the Sun and 3.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7160 |
| Provisional designation | 1981 UQ29 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.12 km (#10,394 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.322 |
| Rotation period | 5.14 hours |
| Absolute magnitude (H) | 13.48 |
| Orbital period | 3.87 years |
| Semi-major axis | 2.47 au |
| Perihelion – aphelion | 1.96 – 2.97 au |
| Eccentricity | 0.204 |
| Inclination | 1.26° |
| Closest distance between its orbit and Earth's (MOID) | 0.978 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alan
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- (10373) MacRobert
- (12431) Webster
- (13410) Arhale
All asteroids named after someone called Alan
Also discovered on 24 October 1981
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- (11267) Donaldkessler