(1529) Oterma Outer Main-belt Asteroid
Discovered on 26 January 1938 by Y. Vaisala at Turku.
Where Oterma is today
Seen from above the solar system on 2026-10-14: Oterma is 4.33 au from the Sun and 5.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1529 |
| Provisional designation | 1938 BC |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 56.3 km (#639 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Rotation period | 14.3 hours |
| Spectral type | P: |
| Absolute magnitude (H) | 9.94 |
| Orbital period | 7.97 years |
| Semi-major axis | 3.99 au |
| Perihelion – aphelion | 3.16 – 4.82 au |
| Eccentricity | 0.207 |
| Inclination | 9.07° |
| Closest distance between its orbit and Earth's (MOID) | 2.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.