(12657) Bonch-Bruevich Main-belt Asteroid
Discovered on 30 August 1971 by T. M. Smirnova at Nauchnyj.
Aleksej Mikhajlovich Bonch-Bruevich (b. 1916), a corresponding member of the Russian Academy of Sciences, is renowned for his research in the field of laser radiation interaction with absorbing and transparent environments. He is founder of a new scientific branch on power optics.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bonch-Bruevich is today
Seen from above the solar system on 2026-10-14: Bonch-Bruevich is 3.35 au from the Sun and 4.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12657 |
| Provisional designation | 1971 QO1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.87 km (#5,854 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.270 |
| Absolute magnitude (H) | 12.66 |
| Orbital period | 5.25 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.69 – 3.35 au |
| Eccentricity | 0.108 |
| Inclination | 9.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Aleksej
All asteroids named after someone called Aleksej