(21088) Chelyabinsk ( lat. Chelyabinsk ) is a near - earth asteroid from the Amur Group ( II ), which was discovered on January 30, 1992 by the Belgian astronomer Eric Elst in the La Silla Observatory and is named after Chelyabinsk , a large industrial city in the Urals.
- The orbit of the asteroid Chelyabinsk and its position in the solar system
| (21088) Chelyabinsk | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Eric Elst |
| Detection point | La silia |
| Date of discovery | January 30, 1992 |
| Eponym | Chelyabinsk |
| Alternative designations | 1992 BH 2 |
| Category | NEA ( Cupids ) |
| Orbital characteristics | |
| The era of December 9, 2014 JD 2457000.5 | |
| Eccentricity ( e ) | 0.2385309 |
| Semi-axis ( a ) | 255.277 million km (1.7064226 a. E.) |
| Perihelion ( q ) | 194.386 million km (1,2993881 a. E.) |
| Afhelia ( Q ) | 316.169 million km (2.1134571 a. E.) |
| Period of circulation ( P ) | 814.195 days (2.229 g. ) |
| Average orbital speed | 22,473 km / s |
| Inclination ( i ) | 38.46108 ° |
| Ascending node longitude (Ω) | 297.86877 ° |
| Perihelion Argument (ω) | 27.13587 ° |
| Mean Anomaly ( M ) | 236.76802 ° |
| physical characteristics | |
| Diameter | 4 - 9 km |
| Rotation period | 22.49 h |
| Apparent magnitude | 18.45 m (current) |
| Absolute magnitude | 14.2 m |
| Current distance from the Sun | 1.819 a. e. |
| Current distance from Earth | 2,244 a. e. |
See also
- List of asteroids ( 21001-21100 )
- Small Planet Classifications