(2830) Greenwich
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Asteroid (2830) Greenwich |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Asteroid family | Phocaea family |
| Major semi-axis | 2.3789 ± 0.0001 AU |
| eccentricity | 0.2049 ± 0.0007 |
| Perihelion - aphelion | 1.8914 ± 0.0016 AU - 2.8663 ± 0.0001 AU |
| Inclination of the orbit plane | 25.3534 ± 0.0797 ° |
| Length of the ascending node | 49.0146 ± 0.1044 ° |
| Argument of the periapsis | 141.1418 ± 0.1654 ° |
| Time of passage of the perihelion | 5th July 2020 |
| Sidereal period | 3.67 a ± 0.0918 d |
| Physical Properties | |
| Medium diameter | 7.892 ± 0.100 km |
| Albedo | 0.172 ± 0.027 |
| Rotation period | ≈24 ± 1.82664 h |
| Absolute brightness | 12.64 mag |
| Spectral class | S. |
| history | |
| Explorer |
 Edward LG Bowell
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| Date of discovery | April 14, 1980 |
| Another name | 1980 GA ; 1969 KC; 1978 EF 14 |
| 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. | |
(2830) Greenwich ( 1980 GA ; 1969 KC ; 1978 VZ 14 ) is an approximately eight kilometers large asteroid of the main inner belt that was discovered on April 14, 1980 by the American astronomer Edward LG Bowell at the Lowell Observatory , Anderson Mesa Station ( Anderson Mesa ) near Flagstaff , Arizona ( IAU code 688). It belongs to the Phocaea family , a group of asteroids named after (25) Phocaea .
designation
(2830) Greenwich was named after the Royal Greenwich Observatory (IAU code 000), on the occasion of its 100th anniversary as Greenwich Mean Time . The university was founded by King Charles II in 1675 to determine the geographical longitude and was soon one of the world's leading astronomical research institutions. The prime meridian is in Greenwich.
See also
Web links
- (2830) Greenwich in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2830) Greenwich in the Small-Body Database of the Jet Propulsion Laboratory .
Individual evidence
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 186 (English, 992 pp., Link.springer.com [ONLINE; accessed on September 16, 2019] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “1980 GA. Discovered 1980 Apr. 14 by E. Bowell at Anderson Mesa. "
| predecessor | asteroid | successor |
|---|---|---|
| (2829) Bobhope | numbering | (2831) Stevine |