(2164) Lyalya Main-belt Asteroid
Discovered on 11 September 1972 by N. S. Chernykh at Nauchnyj.
Named in memory of Elena (Lyalya) Konstantinovna Ubijvovk (1918-1942), a student in astronomy at Kharkov University who perished with other members of the Resistance during the Great Patriotic War.Naming citation (MPC 5285), IAU / Minor Planet Center, via NASA/JPL
Where Lyalya is today
Seen from above the solar system on 2026-10-14: Lyalya is 3.51 au from the Sun and 4.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2164 |
| Provisional designation | 1972 RM2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.0 km (#2,205 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0840 |
| Rotation period | 7.71 hours |
| Absolute magnitude (H) | 12.03 |
| Orbital period | 5.68 years |
| Semi-major axis | 3.18 au |
| Perihelion – aphelion | 2.74 – 3.63 au |
| Eccentricity | 0.140 |
| Inclination | 2.64° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 11 September 1972
- (1907) Rudneva
- (1908) Pobeda
- (2113) Ehrdni
- (2178) Kazakhstania
- (2238) Steshenko
- (7073) Rudbelia
- (7725) Sel'vinskij
- (22249) Dvorets Pionerov
More named asteroids discovered by N. S. Chernykh
- (1796) Riga
- (1836) Komarov
- (1907) Rudneva
- (1908) Pobeda
- (2004) Lexell
- (2006) Polonskaya
- (2036) Sheragul
- (2113) Ehrdni
- (2123) Vltava
- (2149) Schwambraniya
- (2178) Kazakhstania
- (2190) Coubertin
← (2163) Korczak · (2165) Young →