(9019) Eucommia
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Asteroid (9019) Eucommia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.4433 AU |
| eccentricity | 0.0998 |
| Perihelion - aphelion | 2.1995 AU - 2.6871 AU |
| Inclination of the orbit plane | 5.4094 ° |
| Length of the ascending node | 135.0927 ° |
| Argument of the periapsis | 168.8059 ° |
| Time of passage of the perihelion | 1st December 2017 |
| Sidereal period | 3.82 a |
| Mean orbital velocity | 19.05 km / s |
| Physical Properties | |
| Medium diameter | 5.016 km (± 0.076) |
| Albedo | 0.171 (± 0.025) |
| Absolute brightness | 14.1 mag |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | August 28, 1987 |
| Another name | 1987 QF 3 , 1991 RV 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. | |
(9019) Eucommia is an asteroid of the main inner belt which was discovered by the Belgian astronomer Eric Walter Elst on August 28, 1987 at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809).
The mean diameter of the asteroid was calculated to be around 5 kilometers.
Mean distance from the Sun ( major semiaxis ), eccentricity and inclination of the orbit plane of (9019) Eucommia roughly correspond to the Vesta family , a large group of asteroids named after (4) Vesta , the second largest asteroid and third largest celestial body in the main belt.
The asteroid was named on April 2, 1999 after the plant family Eucommiaceae , whose only member of the Quaternary is the tree Eucommia ulmoides .
Web links
- (9019) Eucommia in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9019) Eucommia 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 (9019) Eucommia according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)