(2257) Kaarina Main-belt Asteroid
Discovered on 18 August 1939 by H. Alikoski at Turku.
Where Kaarina is today
Seen from above the solar system on 2026-10-14: Kaarina is 2.28 au from the Sun and 2.06 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2257 |
| Provisional designation | 1939 QB |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.69 km (#9,409 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.314 |
| Rotation period | 3.05 hours |
| Absolute magnitude (H) | 13.43 |
| Orbital period | 3.92 years |
| Semi-major axis | 2.49 au |
| Perihelion – aphelion | 1.89 – 3.08 au |
| Eccentricity | 0.239 |
| Inclination | 5.07° |
| Closest distance between its orbit and Earth's (MOID) | 0.895 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.