(12187) Lenagoryunova Main-belt Asteroid
Discovered on 11 September 1977 by N. S. Chernykh at Nauchnyj.
Elena (Lena) Viktorovna Goryunova (b. 1961), hydrologist at Sebastopol Institute of Hydrography, is a friend of the discoverer's daughter.Naming citation (20010902/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Lenagoryunova is today
Seen from above the solar system on 2026-10-14: Lenagoryunova is 2.84 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12187 |
| Provisional designation | 1977 RL7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.77 km (#9,272 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.160 |
| Absolute magnitude (H) | 13.96 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.03 – 3.30 au |
| Eccentricity | 0.239 |
| Inclination | 13.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 11 September 1977
- (2428) Kamenyar
- (2458) Veniakaverin
- (3054) Strugatskia
- (3224) Irkutsk
- (3302) Schliemann
- (3787) Aivazovskij
- (3942) Churivannia
- (4233) Pal'chikov
- (4619) Polyakhova
- (4654) Gor'kavyj
- (4813) Terebizh
- (4983) Schroeteria