(2747) Cesky Krumlov ( Czech Český Krumlov ) - a small asteroid in the main belt , which is part of the Hygea family . It was discovered on February 19, 1980 by the Czech astronomer Antonin Mrkos at the Klet observatory and named after the Czech city of Cesky Krumlov [1] .
| (2747) Cesky Krumlov | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | A. Mrkos |
| Place of discovery | Stand |
| Discovery date | February 19, 1980 |
| Alternative notation | 1980 DW ; 1953 FO 1 ; 1975 EK 5 ; 1977 SV 2 ; 1977 TM 3 ; 1977 TS 7 ; 1982 OM |
| Category | Main ring ( Hygea family ) |
| Orbital characteristics | |
| Age of November 4, 2013 JD 2456600.5 | |
| Eccentricity ( e ) | 0.1277240 |
| Semimajor axis ( a ) | 463.482 million km (3.0981875 AU ) |
| Perihelion ( q ) | 404.284 million km (2.7024746 AU) |
| Aphelion ( Q ) | 522.68 million km (3.4939004 AU) |
| Circulation Period ( P ) | 1991.865 days (5.453 g. ) |
| Average orbital speed | 16.852 km / s |
| Inclination ( i ) | 5.81852 ° |
| Longitude node (Ω) | 344,90876 ° |
| Perihelion Argument (ω) | 302.39172 ° |
| Median Anomaly ( M ) | 290.11864 ° |
| physical characteristics | |
| Diameter | 32.63 km |
| Weight | 3.3⋅10 16 kg |
| Density | 2,000 g / cm³ |
| Acceleration of free fall on the surface | 0,0088 m / s² |
| 2nd space speed | 0.0167 km / s |
| Apparent magnitude | 17.47 m (current) |
| Absolute magnitude | 11.7 m |
| Albedo | 0,0380 |
| Average surface temperature | 160 K (−113 ° C ) |
| Current distance from the sun | 2,841 a. e. |
| Current distance from earth | 3.393 a. e. |
Orbit of the asteroid Cesky Krumlov and its position in the solar system
See also
- List of asteroids ( 2701-2800 )
- Classifications of Minor Planets
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 225. - ISBN 3-540-00238-3 .