(6317) Dreyfus
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Asteroid (6317) Dreyfus |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.2421 AU |
| eccentricity | 0.0581 |
| Perihelion - aphelion | 2.1118 AU - 2.3725 AU |
| Inclination of the orbit plane | 5.8351 ° |
| Length of the ascending node | 94.0503 ° |
| Argument of the periapsis | 94.7190 ° |
| Time of passage of the perihelion | January 13, 2019 |
| Sidereal period | 3.36 a |
| Mean orbital velocity | 19.89 km / s |
| Physical Properties | |
| Medium diameter | 5.640 km (± 0.218) |
| Albedo | 0.153 (± 0.014) |
| Rotation period | 5.25 h |
| Absolute brightness | 13.9 likes |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | October 16, 1990 |
| Another name | 1990 UP 3 , 1988 AQ 5 , 1992 FQ 1 |
| 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. | |
(6317) Dreyfus is an asteroid of the main inner belt discovered on October 16, 1990 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809). There had already been sightings of the asteroid on January 11, 1988 under the provisional designation 1988 AQ 5 at the Karl Schwarzschild Observatory in the Tautenburg Forest .
The mean diameter of the asteroid was calculated to be 5.640 km (± 0.218), the albedo to be 0.153 (± 0.014) and the period of rotation to be 5.25 hours.
(6317) Dreyfus was named on July 12, 1995 after the Dreyfus affair . In the Dreyfus affair of innocent French had artillery - Captain Alfred Dreyfus in 1894 by a military court in Paris for alleged treason in favor of the German Empire convicted. It was not until 1906 that he was fully rehabilitated.
See also
Web links
- (6317) Dreyfus in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (6317) Dreyfus 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 (6317) Dreyfus according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Observations by (6317) Dreyfus on minorplanetcenter.net (English)
- ↑ Ninel M. Gaftonyuk and Yurij Krugly in the Astronomical School Report 5, 2004, number 1–2, pages 122–125 (Russian)