(3275) Oberndorfer Main-belt Asteroid
Discovered on 25 April 1982 by E. Bowell at Anderson Mesa.
Where Oberndorfer is today
Seen from above the solar system on 2026-10-14: Oberndorfer is 2.74 au from the Sun and 1.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3275 |
| Provisional designation | 1982 HE1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.8 km (#4,658 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0810 |
| Rotation period | 9.24 hours |
| Absolute magnitude (H) | 13.56 |
| Orbital period | 3.56 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 1.91 – 2.76 au |
| Eccentricity | 0.182 |
| Inclination | 8.58° |
| Closest distance between its orbit and Earth's (MOID) | 0.897 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.