(2089) Cetacea
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Asteroid (2089) Cetacea |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| family | Eunomia family |
| Major semi-axis | 2.534 AU |
| eccentricity | 0.156 |
| Perihelion - aphelion | 2.138 AU - 2.929 AU |
| Inclination of the orbit plane | 15.377 ° |
| Length of the ascending node | 102.697 ° |
| Argument of the periapsis | 287.242 ° |
| Time of passage of the perihelion | February 28, 2018 |
| Sidereal period | 4.04 a |
| Physical Properties | |
| Medium diameter | 16.123 km |
| Albedo | 0.276 |
| Rotation period | 39.12 h |
| Absolute brightness | 10.98 mag |
| Spectral class |
SMASSII: Sq Tholen: S |
| history | |
| Explorer | Norman G. Thomas |
| Date of discovery | November 9, 1977 |
| Another name | 1977 VF; 1936 MB; 1939 FN; 1949 WE; 1972 LG; 1976 KO |
| 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. | |
(2089) Cetacea ( 1977 VF ; 1936 MB ; 1939 FN ; 1949 WE ; 1972 LG ; 1976 KO ) is an asteroid of the central main girdle belonging to the Eunomia family and discovered on November 9, 1977 by Norman G. Thomas on Lowell- Observatory (Anderson Mesa Station) was discovered.
designation
The asteroid was named after the scientific name of the whale (Cetacea).
See also
Web links
- Asteroid Cetacea: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (2089) Cetacea in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
Individual evidence
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Enlarged version. Ed .: Lutz D. Schmadel. 3. Edition. tape 1 . Springer Verlag , Berlin , Heidelberg 1997, ISBN 978-3-662-06617-1 , pp. 269 (English, 938 pp., Google Books [ONLINE; accessed on September 4, 2016] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named for the order of mammals commonly called whales”