(1931) Capek
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Asteroid (1931) Capek  | 
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid | 
| Major semi-axis | 2.54 AU | 
| eccentricity | 0.273 | 
| Perihelion - aphelion | 1.847 AU - 3.233 AU | 
| Inclination of the orbit plane | 8.25 ° | 
| Length of the ascending node | 182.515 ° | 
| Argument of the periapsis | 163.834 ° | 
| Time of passage of the perihelion | 2456771 | 
| Sidereal period | 4.05 a | 
| Physical Properties | |
| Medium diameter | approx. 7 km | 
| Albedo | 0.254 | 
| Absolute brightness | 13.0 likes | 
| Spectral class | C. | 
| history | |
| Explorer | Luboš Kohoutek | 
| Date of discovery | 22nd August 1969 | 
| Another name | 1969 QB; 1957 TK; 1969 PB | 
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(1931) Čapek ( 1969 QB ; 1957 TK ; 1969 PB ) is an asteroid of the main belt , which was discovered on August 22, 1969 by Luboš Kohoutek in the Hamburg observatory ( Bergedorf ).
The asteroid is named after the Czech writer Karel Čapek .