(7739) Čech
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Asteroid (7739) Čech |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.3248 AU |
| eccentricity | 0.1261 |
| Perihelion - aphelion | 2.0315 AU - 2.6180 AU |
| Inclination of the orbit plane | 3.3923 ° |
| Length of the ascending node | 158.5219 ° |
| Argument of the periapsis | 15.7311 ° |
| Sidereal period | 3.54 a |
| Mean orbital velocity | 19.53 km / s |
| Physical Properties | |
| Medium diameter | 4.196 ± 0.091 km |
| Albedo | 0.174 |
| Absolute brightness | 14.6 mag |
| history | |
| Explorer | Ladislav Brožek |
| Date of discovery | February 14, 1982 |
| Another name | 1982 CE , 1989 CZ 3 |
| 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. | |
(7739) Čech is an asteroid of the main belt that was discovered on February 14, 1982 by the Czech astronomer Ladislav Brožek at the Kleť Observatory ( IAU code 688) near the town of Český Krumlov in southern Bohemia .
The asteroid was named on April 2, 1999 after the Czech mathematician Eduard Čech (1893-1960), whose main field was projective differential geometry .
See also
Web links
- Asteroid Čech: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Čech in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology, Pasadena, USA
- (7739) Čech in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).