(11818) Ulamec Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
Stephan Ulamec (b. 1966) is a researcher at the German Aerospace Center (DLR-Berlin) who served as the project manager of Philae, the lander carried aboard ESA's Rosetta mission.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Ulamec is today
Seen from above the solar system on 2026-10-14: Ulamec is 3.08 au from the Sun and 3.28 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11818 |
| Provisional designation | 1981 EK35 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.06 |
| Orbital period | 5.19 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.71 – 3.28 au |
| Eccentricity | 0.0938 |
| Inclination | 0.821° |
| Closest distance between its orbit and Earth's (MOID) | 1.71 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Stephan
All asteroids named after someone called Stephan
Also discovered on 2 March 1981
- (2884) Reddish
- (2919) Dali
- (2980) Cameron
- (2981) Chagall
- (2990) Trimberger
- (3000) Leonardo
- (3121) Tamines
- (3122) Florence
- (3207) Spinrad
- (3252) Johnny
- (3304) Pearce
- (3524) Schulz