(10666) Feldberg Main-belt Asteroid
Discovered on 16 October 1977 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
The Feldberg is the highest mountain (1490 m) of the Schwarzwald. Winter and summer, its wonderful surrounding area attracts tourists, hikers and skiers.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Feldberg is today
Seen from above the solar system on 2026-10-14: Feldberg is 2.34 au from the Sun and 2.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10666 |
| Provisional designation | 4171 T-3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.98 km (#12,786 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.233 |
| Rotation period | 3.49 hours |
| Absolute magnitude (H) | 14.19 |
| Orbital period | 3.31 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 2.09 – 2.35 au |
| Eccentricity | 0.0578 |
| Inclination | 5.92° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 October 1977
- (3798) de Jager
- (3936) Elst
- (4044) Erikhog
- (4108) Rakos
- (4722) Agelaos
- (4753) Phidias
- (4754) Panthoos
- (5610) Balster
- (5699) Munch
- (5700) Homerus
- (5984) Lysippus
- (6055) Brunelleschi