(3991) Basilevsky Main-belt Asteroid
Discovered on 26 September 1987 by E. Bowell at Anderson Mesa.
Where Basilevsky is today
Seen from above the solar system on 2026-10-14: Basilevsky is 2.34 au from the Sun and 3.21 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3991 |
| Provisional designation | 1987 SW3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.63 km (#9,522 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.370 |
| Rotation period | 5.44 hours |
| Absolute magnitude (H) | 13.23 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.86 – 2.64 au |
| Eccentricity | 0.173 |
| Inclination | 3.87° |
| Closest distance between its orbit and Earth's (MOID) | 0.845 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 September 1987
More named asteroids discovered by E. Bowell
- (2246) Bowell
- (2264) Sabrina
- (2270) Yazhi
- (2316) Jo-Ann
- (2356) Hirons
- (2357) Phereclos
- (2383) Bradley
- (2409) Chapman
- (2410) Morrison
- (2411) Zellner
- (2421) Nininger
- (2432) Soomana
← (3990) Heimdal · (3992) Wagner →