(208351) Sielmann
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Asteroid (208351) Sielmann |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Euphrosyne family |
| Major semi-axis | 3.1539 AU |
| eccentricity | 0.1929 |
| Perihelion - aphelion | 2.5455 AU - 3.7624 AU |
| Inclination of the orbit plane | 25.2430 ° |
| Length of the ascending node | 304.9928 ° |
| Argument of the periapsis | 110.1317 ° |
| Sidereal period | 5.60 a |
| Physical Properties | |
| Absolute brightness | 14.7 mag |
| history | |
| Explorer | André Knöfel |
| Date of discovery | September 8, 2001 |
| Another name | 2001 RO 15 |
| 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. | |
(208351) Sielmann is an asteroid of the outer main belt , which was discovered by the German astronomer André Knöfel on September 8, 2001 at the Saxon public observatory in Drebach ( IAU code 113).
The asteroid belongs to the Euphrosyne family, a group of asteroids named after (31) Euphrosyne . The orbit of (208351) Sielmann around the sun is strongly inclined at more than 25 ° compared to the ecliptic of the solar system , which is typical for members of the Euphrosyne family.
(208351) Sielmann was named after the German animal filmmaker Heinz Sielmann . It was named on February 7, 2012.
Web links
- (208351) Sielmann in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (208351) Sielmann in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (208351) Sielmann according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)