(6251) Setsuko Main-belt Asteroid
Discovered on 25 February 1992 by Akiyama, M., Furuta, T. at Susono.
Where Setsuko is today
Seen from above the solar system on 2026-10-14: Setsuko is 2.13 au from the Sun and 2.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6251 |
| Provisional designation | 1992 DB |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.75 km (#9,304 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.233 |
| Rotation period | 25.3 hours |
| Absolute magnitude (H) | 13.85 |
| Orbital period | 3.48 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 2.11 – 2.48 au |
| Eccentricity | 0.0790 |
| Inclination | 4.29° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.