(3782) Celle
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Asteroid (3782) Celle |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Asteroid family | Vesta family |
| Major semi-axis | 2.415 AU |
| eccentricity | 0.094 |
| Perihelion - aphelion | 2.189 AU - 2.641 AU |
| Inclination of the orbit plane | 5.2 ° |
| Length of the ascending node | 271.4 ° |
| Argument of the periapsis | 334.3 ° |
| Time of passage of the perihelion | May 25, 2019 |
| Sidereal period | 3 a 276 d |
| Mean orbital velocity | 19.12 km / s |
| Physical Properties | |
| Medium diameter | 5.924 (± 0.230) km |
| Dimensions | 2 · 10 14 kg |
| Albedo | 0.418 (± 0.072) |
| Medium density | about 2.2 g / cm³ |
| Rotation period | 3.84 h |
| Absolute brightness | 12.6 mag |
| Spectral class | V |
| history | |
| Explorer | Poul Jensen |
| Date of discovery | 3rd October 1986 |
| Another name | 1986 TE , 1970 HD, 1972 YP, 1973 AV, 1978 NH 2 , 1982 OB, 1985 GR 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. | |
(3782) Celle is a double asteroid of the inner main girdle .
discovery
The six-kilometer main asteroid was discovered by Poul Jensen on October 3, 1986 at the Brorfelde Observatory in Denmark .
Its natural satellite was discovered on September 18, 2001 through light curve observations by astronomers at the Vatican Advanced Technology Telescope (VATT) in Arizona . Celle is orbited by its approximately 2.34 km satellite at a distance of approximately 18 km.
Physical Properties
Celle belongs to the asteroid family of the Vestoids . It is assumed that these were knocked out by a collision with the asteroid (4) Vesta , as they show high spectral similarities to each other. The spectral type according to the Tholen classification is therefore named V type after Vesta . Planetoids of this type consist mainly of silicates with an increased proportion of pyroxene minerals.
designation
The planetoid was named on February 18, 1992 after the town of Celle in Lower Saxony . The town of Celle has been a twin town of Holbæk since 1980 , the town near the Brorfelde observatory, where the asteroid was discovered. The city of Celle celebrated the “700 years young Celle” anniversary in 1992.
See also
- List of asteroids
- Alphabetical list of asteroids
- Asteroid belt
- Spectral types of asteroids
- Vestoids
- Double asteroid
- Celle (city in Lower Saxony)
Web links
- (3782) Celle in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (3782) Celle at the IAU Minor Planet Center (English)
Individual evidence
- ↑ a b c d Asteroids with Satellites Database - Johnston's Archive: (3782) Celle. In: Johnstonarchive.net. September 21, 2014, accessed July 11, 2017 .
- ↑ German researchers find unique asteroids. In: Zeit Online . January 7, 2011, accessed July 11, 2017 .
- ^ City of Celle - twin cities. In: City of Celle . Retrieved July 11, 2017 .
- ^ City of Celle - city history from seven centuries. In: City of Celle . Retrieved July 11, 2017 .
- ^ Lutz D. Schmadel : Dictionary Of Minor Planet Names: (3782) Celle. In: Springer International Publishing AG. 2007, accessed on July 11, 2017 .