(9999) Wiles
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Asteroid (9999) Wiles |
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| Orbit of (9999) Wiles | |
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Koronis family |
| Major semi-axis | 2.8391 AU |
| eccentricity | 0.0704 |
| Perihelion - aphelion | 2.6393 AU - 3.0388 AU |
| Inclination of the orbit plane | 3.1993 ° |
| Length of the ascending node | 76.3684 ° |
| Argument of the periapsis | 235.0485 ° |
| Time of passage of the perihelion | February 29, 2016 |
| Sidereal period | 4.78 a |
| Mean orbital velocity | 17.68 km / s |
| Physical Properties | |
| Medium diameter | 7.148 (± 0.065) km |
| Albedo | 0.262 (± 0.023) |
| Absolute brightness | 12.9 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | 29th September 1973 |
| Another name | 4196 T-2 , 1995 EM 8 |
| 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. | |
(9999) Wiles is an asteroid of the main outer belt that was discovered on September 29, 1973 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery was made during the 2nd Trojan survey, during which Tom Gehrels surveyed field plates recorded with the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , 13 years after the start of the Palomar-Leiden- Surveys .
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis .
According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), Wiles was assigned to the taxonomic class of C asteroids in a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel (9999) .
The asteroid was named on April 2, 1999 after the British mathematician Andrew Wiles (* 1953).
Web links
- (9999) Wiles in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9999) Wiles 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 by (9999) Wiles according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ^ 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)