(21643) Kornev Main-belt Asteroid
Discovered on 14 July 1999 by LINEAR at Socorro.
Aleksey Borisovich Kornev (b. 1988) was awarded second place in the 2005 Intel International Science and Engineering Fair for his chemistry project. He attends the Bryansky Lyceum #1, Bryansk, Russia.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kornev is today
Seen from above the solar system on 2026-10-14: Kornev is 2.08 au from the Sun and 1.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21643 |
| Provisional designation | 1999 NJ42 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 3.65 hours |
| Absolute magnitude (H) | 15.69 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.94 – 2.56 au |
| Eccentricity | 0.139 |
| Inclination | 3.90° |
| Closest distance between its orbit and Earth's (MOID) | 0.949 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Aleksey
All asteroids named after someone called Aleksey
Also discovered on 14 July 1999
- (11751) Davidcarroll
- (12120) Rebeccagrella
- (15502) Hypeirochus
- (16062) Buncher
- (17169) Tatarinov
- (17170) Vsevustinov
- (18823) Zachozer
- (18824) Graves
- (18825) Alicechai
- (18826) Leifer
- (18830) Pothier
- (19589) Kirkland