3924 Birch
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Asteroid (3924) Birch |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.7008 AU |
| eccentricity | 0.1091 |
| Perihelion - aphelion | 2.4061 AU - 2.9955 AU |
| Inclination of the orbit plane | 6.7056 ° |
| Length of the ascending node | 331.8233 ° |
| Argument of the periapsis | 94.6815 ° |
| Sidereal period | 4.44 a |
| Mean orbital velocity | 18.12 km / s |
| Physical Properties | |
| Medium diameter | approx. 17 km |
| Rotation period | 18.5 h |
| Absolute brightness | 12.2 mag |
| history | |
| Explorer |
Edward LG Bowell Charles Thomas Kowal |
| Date of discovery | February 11, 1977 |
| Another name | 1977 CU , 1968 DC, 1973 FC 1 , 1975 TG, 1977 EB, 1978 LF, 1980 CH 3 , 1984 SF 5 |
| 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. | |
(3924) Birch is an asteroid of the main belt which was discovered on February 11, 1977 by the American astronomer Edward LG Bowell at the Palomar Observatory ( IAU code 675) during the evaluation of photo plates exposed by Charles Thomas Kowal .
The asteroid was named after the Australian astronomer Peter V. Birch , who has worked at the Perth Observatory since 1970 , where he made a variety of observations as part of the International Planetary Patrol Program . In 1977 he was involved in the discovery of the rings of Uranus .
See also
Web links
- Asteroid Birch: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (3924) Birch in the Small-Body Database of the Jet Propulsion Laboratory .
- (3924) Birch in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).