(12490) suffering
Asteroid (12490) Leiden |
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Properties of the orbit ( animation ) | |
Orbit type | Main outer belt asteroid |
Major semi-axis | 3.2018 AE |
eccentricity | 0.1195 |
Perihelion - aphelion | 2.8191 AU - 3.5844 AU |
Inclination of the orbit plane | 0.9566 ° |
Length of the ascending node | 146.4594 ° |
Argument of the periapsis | 66.8745 ° |
Sidereal period | 5.73 a |
Mean orbital velocity | 16.63 km / s |
Physical Properties | |
Absolute brightness | 14.3 mag |
history | |
Explorer | Eric Walter Elst |
Date of discovery | May 3, 1997 |
Another name | 1997 JB 13 , 1991 GH 9 |
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. |
(12490) Leiden is an asteroid of the main outer belt discovered on May 3, 1997 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809). The asteroid had already been sighted at the La Silla Observatory on April 10 and 19, 1991 under the provisional designation 1991 GH 9 .
Mean distance from the Sun ( major semi-axis ), eccentricity and inclination of the orbit plane of the asteroid roughly correspond to the Themis family, a group of asteroids named after (24) Themis .
(12490) Leiden was named after the Dutch city of Leiden on September 28, 2004 .
See also
Web links
- (12490) Leiden in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (12490) Leiden in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (12490) suffering that according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (12490) Leiden at the IAU Minor Planet Center (English)