(6639) Marchis
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Asteroid (6639) Marchis |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Asteroid family | Themis family |
| Major semi-axis | 3.1689 AU |
| eccentricity | 0.1302 |
| Perihelion - aphelion | 2.7563 AU - 3.5815 AU |
| Inclination of the orbit plane | 2.5207 ° |
| Length of the ascending node | 69.1224 ° |
| Argument of the periapsis | 218.1809 ° |
| Sidereal period | 5.64 a |
| Physical Properties | |
| Medium diameter | 14.132 ± 0.144 km |
| Albedo | 0.064 ± 0.007 |
| Absolute brightness | 12.8 mag |
| history | |
| Explorer | H. Debehogne |
| Date of discovery | September 25, 1989 |
| Another name | 1989 SO 8 , 1977 LZ |
| 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. | |
(6639) Marchis is a main outer belt asteroid discovered on September 25, 1989 by the Belgian astronomer Henri Debehogne at the La Silla Observatory ( IAU code 809) of the European Southern Observatory in Chile .
The asteroid was named on April 2, 2007 after the French astronomer and planetologist Franck Marchis (* 1973), who was known for his discovery and description of numerous asteroids, his studies of Jupiter's moon Io and his images of exoplanets .
(6639) Marchis belongs to the Themis family, a group of asteroids named after (24) Themis .
See also
Individual evidence
- ↑ The family affiliation of (6639) Marchis in the AstDyS-2 database (English)
Web links
- Asteroid Marchis: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Marchis in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (6639) Marchis in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).