(6675) Sisley
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Asteroid (6675) Sisley |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 3.0833 AU |
| eccentricity | 0.1757 |
| Perihelion - aphelion | 2.5416 AU - 3.6250 AU |
| Inclination of the orbit plane | 1.5692 ° |
| Length of the ascending node | 67.0776 ° |
| Argument of the periapsis | 55.9278 ° |
| Sidereal period | 5.41 a |
| Mean orbital velocity | 16.99 km / s |
| Physical Properties | |
| Medium diameter | 8.151 ± 0.188 km |
| Albedo | 0.051 ± 0.004 |
| Absolute brightness | 14.6 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | 29th September 1973 |
| Another name | 1493 T-2 , 1981 EM 21 |
| 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. | |
(6675) Sisley 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 .
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 . According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (6675) Sisley assumed a dark surface, so it could, roughly speaking, be trade a C asteroid .
(6675) Sisley was on April 4, 1996 under the French painters of the Impressionist Alfred Sisley named.
Web links
- (6675) Sisley in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (6675) Sisley 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
- ^ 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)
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2012, 6th edition, page 527f (English)