(30821) Chernetenko Main-belt Asteroid
Discovered on 15 September 1990 by L. V. Zhuravleva at Nauchnyj.
Yuliya Andreevna Chernetenko (b. 1946) is well known for her investigation of the motion of Comet 2P/Encke. More recently she has established systematic effects in the Hipparcos and other star catalogues using positions of selected minor planets.Naming citation (20060809/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Chernetenko is today
Seen from above the solar system on 2026-10-14: Chernetenko is 2.61 au from the Sun and 2.64 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 30821 |
| Provisional designation | 1990 RR17 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.61 km (#13,685 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.283 |
| Rotation period | 17.6 hours |
| Absolute magnitude (H) | 14.52 |
| Orbital period | 3.52 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 1.84 – 2.78 au |
| Eccentricity | 0.203 |
| Inclination | 4.28° |
| Closest distance between its orbit and Earth's (MOID) | 0.834 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 September 1990
- (5185) Alerossi
- (5681) Bakulev
- (6134) Kamagari
- (6311) Porubcan
- (8498) Ufa
- (13049) Butov
- (15258) Alfilipenko
- (21043) Pascalwillis