(4258) Ryazanov Main-belt Asteroid
Discovered on 1 September 1987 by L. G. Karachkina at Nauchnyj.
Named in honor of Eldar Aleksandrovich Ryazanov, a well-known Soviet movie producer, writer and poet.Naming citation (WGSBN Bull. 3, #1, 6), IAU / Minor Planet Center, via NASA/JPL
Where Ryazanov is today
Seen from above the solar system on 2026-10-14: Ryazanov is 3.04 au from the Sun and 3.98 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4258 |
| Provisional designation | 1987 RZ2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.22 km (#5,603 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.329 |
| Absolute magnitude (H) | 12.24 |
| Orbital period | 5.09 years |
| Semi-major axis | 2.96 au |
| Perihelion – aphelion | 2.74 – 3.17 au |
| Eccentricity | 0.0726 |
| Inclination | 3.95° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 1 September 1987
More named asteroids discovered by L. G. Karachkina
- (2892) Filipenko
- (3063) Makhaon
- (3068) Khanina
- (3215) Lapko
- (3286) Anatoliya
- (3345) Tarkovskij
- (3437) Kapitsa
- (3453) Dostoevsky
- (3469) Bulgakov
- (3508) Pasternak
- (3516) Rusheva
- (3620) Platonov
← (4257) Ubasti · (4259) McCoy →