(7921) Huebner Main-belt Asteroid
Discovered on 15 September 1982 by E. Bowell at Anderson Mesa.
Named in honor of Walter F. Huebner (b. 1928), for his seminal contributions to small bodies studies in general, and to cometary studies in particular. Over several decades, Huebner has worked on opacities, equations of state and other physical constants relevant to both planetary science and astrophysics. He has served diligently on countless committees and at NASA headquarters, and he has written and edited scientific books and reviews. Huebner has spent the majority of his career at the Los Alamos National Laboratory, the Max Planck Institute in Germany, and the Southwest Research Institute in San Antonio. Colleagues around the world appreciate his technical talents, his warm personality and his mischievous sense of humor. Citation written by S. A. Stern at the request of the discoverer.Naming citation (19990728/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Huebner is today
Seen from above the solar system on 2026-10-14: Huebner is 2.43 au from the Sun and 3.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7921 |
| Provisional designation | 1982 RF |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.59 km (#9,589 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.156 |
| Absolute magnitude (H) | 14.19 |
| Orbital period | 3.73 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 1.86 – 2.95 au |
| Eccentricity | 0.228 |
| Inclination | 2.30° |
| Closest distance between its orbit and Earth's (MOID) | 0.855 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Walter
- (4588) Wislicenus
- (6318) Cronkite
- (8722) Schirra
- (9132) Walteranderson
- (9187) Walterkroll
- (9577) Gropius
- (9661) Hohmann
- (9696) Jaffe
- (11789) Kempowski
- (12158) Tape
- (15265) Ernsting
- (15968) Waltercugno
All asteroids named after someone called Walter
Also discovered on 15 September 1982
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- (3276) Porta Coeli
- (3693) Barringer
- (4194) Sweitzer
- (4553) Doncampbell
- (5861) Glynjones
- (8258) McCracken
- (12218) Fleischer
- (13004) Aldaz