(228165) Mezentsev Main-belt Asteroid
Discovered on 26 September 2009 by Chestnov, D., Novichonok, A. at Tzec Maun.
Andrey Georgievich Mezentsev (b. 1949) is a Russian astronomer, solar physics expert, coronal holes researcher, lecturer in Petrozavodsk State University and astronomy popularizer. He initiated the foundation of the Asterion Observatory in Petrozavodsk.Naming citation (20100130/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mezentsev is today
Seen from above the solar system on 2026-10-14: Mezentsev is 2.82 au from the Sun and 2.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 228165 |
| Provisional designation | 2009 SJ170 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.21 |
| Orbital period | 4.42 years |
| Semi-major axis | 2.70 au |
| Perihelion – aphelion | 2.40 – 2.99 au |
| Eccentricity | 0.111 |
| Inclination | 10.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andrey
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All asteroids named after someone called Andrey