(10133) Gerdahorneck Main-belt Asteroid
Discovered on 15 April 1993 by H. E. Holt at Palomar.
Gerda Horneck (b. 1939) is a German astrobiologist who has pioneered space-biology experiments since the beginning of the space age. She has investigated the effects of space-environment exposure on a broad range of samples of living biota. Horneck was PI for astrobiology experiments from Spacelab 1 to the ISS.Naming citation (WGSBN Bull. 2, #9, 8), IAU / Minor Planet Center, via NASA/JPL
Where Gerdahorneck is today
Seen from above the solar system on 2026-10-14: Gerdahorneck is 2.54 au from the Sun and 2.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10133 |
| Provisional designation | 1993 GC1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.45 km (#9,807 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.237 |
| Rotation period | 5.55 hours |
| Absolute magnitude (H) | 13.75 |
| Orbital period | 3.47 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 1.93 – 2.66 au |
| Eccentricity | 0.160 |
| Inclination | 5.24° |
| Closest distance between its orbit and Earth's (MOID) | 0.922 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Gerda
All asteroids named after someone called Gerda