(9718) Gerbefremov Main-belt Asteroid
Discovered on 16 December 1976 by L. I. Chernykh at Nauchnyj.
Gerbert Alexandrovich Efremov (b. 1933), a well-known designer of space technology, created the Proton and Almaz space stations. He is a member of Tsiolkovsky Russian Academy of Cosmonautics and was decorated with the Leonardo da Vinci Medal of the International Association of Peace Foundations.Naming citation (20060413/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gerbefremov is today
Seen from above the solar system on 2026-10-14: Gerbefremov is 2.60 au from the Sun and 2.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9718 |
| Provisional designation | 1976 YR1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.60 km (#16,067 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.790 |
| Rotation period | 6.25 hours |
| Absolute magnitude (H) | 13.96 |
| Orbital period | 3.64 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 2.01 – 2.72 au |
| Eccentricity | 0.149 |
| Inclination | 5.93° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 December 1976
- (2341) Aoluta
- (2480) Papanov
- (2551) Decabrina
- (2669) Shostakovich
- (2692) Chkalov
- (2699) Kalinin
- (3052) Herzen
- (3147) Samantha
- (3483) Svetlov
- (3719) Karamzin
- (3967) Shekhtelia
- (4560) Klyuchevskij