(8760) Crex
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Asteroid (8760) Crex |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 3.0834 AU |
| eccentricity | 0.0605 |
| Perihelion - aphelion | 2.8967 AU - 3.2701 AU |
| Inclination of the orbit plane | 1.6733 ° |
| Length of the ascending node | 268.0953 ° |
| Argument of the periapsis | 355.1902 ° |
| Sidereal period | 5.41 a |
| Mean orbital velocity | 16.96 km / s |
| Physical Properties | |
| Medium diameter | 6.565 (± 0.281) km |
| Albedo | 0.149 (± 0.016) |
| Absolute brightness | 13.7 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | March 25, 1971 |
| Another name | 1081 T-1 , 1221 T-2 |
| 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. | |
(8760) Crex is an asteroid of the outer main belt , which was discovered on March 25, 1971 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery took place during the 1st Trojan survey, during which Tom Gehrels surveyed field plates recorded by the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , eleven years after the start of the Palomar-Leiden- Surveys .
The mean diameter of the asteroid was calculated to be 6.565 (± 0.281) km .
(8760) Crex is named after the corncrake , a bird in the railing family , whose scientific name is Crex crex . The name of the asteroid took place on February 2, 1999. The reason for the choice of name: When named, the existence of the corncrake in the Netherlands was endangered.
Web links
- (8760) Crex in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (8760) Crex in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
Individual evidence
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2012, 6th edition, page 653 (English)