(5199) Dortmund
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Asteroid (5199) Dortmund |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Major semi-axis | 2.6179 AU |
| eccentricity | 0.1806 |
| Perihelion - aphelion | 2.1451 AU - 3.0906 AU |
| Inclination of the orbit plane | 12.2742 ° |
| Length of the ascending node | 295.6558 ° |
| Argument of the periapsis | 343.1169 ° |
| Sidereal period | 4.24 a |
| Mean orbital velocity | 18.40 km / s |
| Physical Properties | |
| Absolute brightness | 11.9 likes |
| history | |
| Explorer | Lyudmyla Karachkina |
| Date of discovery | 7th September 1981 |
| Another name | 1981 RP 2 , 1934 NO, 1951 OD, 1986 XA 3 , 1988 DR 1 |
| 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. | |
(5199) Dortmund is an asteroid of the central main belt , which was discovered by the Soviet astronomer Lyudmyla Karachkina on September 7, 1981 at the Crimean Observatory in Nautschnyj ( IAU code 095). Unconfirmed sightings of the asteroid had already occurred on July 9, 1934 (1934 NE) and on July 26, 1951 (1951 OD) at the Union Observatory in Johannesburg .
The Italian astronomer Vincenzo Zappalà defined in a publication from 1995 (et al.) That (5199) Dortmund belonged to the Eunomia family, a group named after (15) Eunomia to which probably five percent of the asteroids of the main belt belong.
When observing the asteroid at the Goodsell Observatory in Northfield , Minnesota in 2003, the diameter of the asteroid was estimated to be approximately 15 kilometers. However, this diameter has not been officially confirmed as the albedo is unknown.
(5199) Dortmund was named on September 1, 1993 after the city of Dortmund , which has been twinned with Rostov-on-Don since 1978 . When the name was submitted, Dortmund was incorrectly referred to as the capital of North Rhine-Westphalia .
Web links
- (5199) Dortmund in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (5199) Dortmund in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (5199) Dortmund according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Observations from (5199) Dortmund on minorplanetcenter.net (English)
- ↑ Database with the assignment of 12,487 asteroids to asteroid groups (English)
- ^ Maurice Clarke, Brian Joyce: Asteroid lightcurve photometry from Goodsell Observatory (741) . The Minor Planet Bulletin, Vol. 30, No. 1, page 5, 2003 (English)