(9860) Archeopteryx
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Asteroid (9860) Archeopteryx |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Veritas family |
| Major semi-axis | 3.1611 AU |
| eccentricity | 0.0757 |
| Perihelion - aphelion | 2.9219 AU - 3.4003 AU |
| Inclination of the orbit plane | 9.9780 ° |
| Length of the ascending node | 152.6444 ° |
| Argument of the periapsis | 153.4773 ° |
| Time of passage of the perihelion | December 9, 2012 |
| Sidereal period | 5.62 a |
| Mean orbital velocity | 16.75 km / s |
| Physical Properties | |
| Absolute brightness | 13.4 mag |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | August 6, 1991 |
| Another name | 1991 PW 9 , 1995 DY 10 |
| 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. | |
(9860) Archeopteryx is an asteroid of the outer main belt , which was discovered on August 6, 1991 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809).
The asteroid belongs to the Veritas family, a group of asteroids named after (490) Veritas and probably formed 8.3 (± 0.5) million years ago when an asteroid with a diameter of 150 km broke apart. The ageless (not osculating ) orbital elements of (9860) Archeopteryx are almost identical with those of the two smaller, when one of the absolute brightness starting from 16.4 and 16.4 versus 13.4, asteroids (369,180) 2008 SG 196 and ( 391758) 2008 EP 55 .
According to the SMASS classification (Small Main-Belt Asteroid Spectroscopic Survey) , a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (9860) Archeopteryx assumed a dark surface (which is typical for the Veritas family) So, roughly speaking, it could be a C asteroid .
(9860) Archeopteryx was on 20 November 2002 after the archosaurs Archeopteryx named.
See also
Web links
- (9860) Archeopteryx in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9860) Archeopteryx 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 (9860) Archeopteryx according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Kenneth A. Farley , David Vokrouhlický , William Bottke , David Nesvorný : A late Miocene dust shower from the break-up of an asteroid in the main belt . Nature , Vol. 439, pp. 295ff, January 19, 2006 (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)