(1207) Ostenia Main-belt Asteroid
Discovered on 15 November 1931 by K. Reinmuth at Heidelberg.
Where Ostenia is today
Seen from above the solar system on 2026-10-14: Ostenia is 2.79 au from the Sun and 2.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1207 |
| Provisional designation | 1931 VT |
| Orbit class | Main-belt Asteroid |
| Diameter | 21.9 km (#1,978 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.176 |
| Rotation period | 9.07 hours |
| Absolute magnitude (H) | 10.98 |
| Orbital period | 5.25 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.75 – 3.29 au |
| Eccentricity | 0.0888 |
| Inclination | 10.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.78 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.