(243073) Freistetter
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Asteroid (243073) Freistetter |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 3.1748 AU |
| eccentricity | 0.1972 |
| Perihelion - aphelion | 2.5489 AU - 3.8008 AU |
| Inclination of the orbit plane | 30.5469 ° |
| Length of the ascending node | 55.4844 ° |
| Argument of the periapsis | 210.9763 ° |
| Time of passage of the perihelion | May 9, 2019 |
| Sidereal period | 5.66 a |
| Physical Properties | |
| Medium diameter | 7.181 (± 1.853) km |
| Albedo | 0.031 (± 0.029) |
| Absolute brightness | 15.0 mag |
| history | |
| Explorer | André Knöfel |
| Date of discovery | April 16, 2007 |
| Another name | 2007 HT 3 |
| 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. | |
(243073) Freistetter is an asteroid of the outer main belt , which was discovered by the German amateur astronomer André Knöfel on April 16, 2007 at the 50 cm Cassegrain reflecting telescope of the Saxon public observatory in Drebach ( IAU code 113). André Knöfel actually wanted to observe the asteroid (323195) 2003 QS 48 when he noticed an unknown asteroid, which was given the provisional designation 2007 HT 3 .
The mean diameter of the asteroid was roughly calculated to be 7.181 (± 1.853) km , the albedo of 0.031 (± 0.029) indicates a dark surface.
Its solar orbit is steeply inclined by more than 30 ° in relation to the ecliptic plane . Presumably it comes relatively close to the dwarf planet (1) Ceres , which could influence the orbit of the minor planet (243073) Freistetter.
On January 27, 2013 the asteroid was named after the Austrian astronomer , blogger and book author Florian Freistetter .
Web links
- (243073) Freistetter in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (243073) Freistetter in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances of (243073) Freistetter according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (323195) 2003 QS 48 in the Small-Body Database of the Jet Propulsion Laboratory (English).
- ↑ (243073) Freistetter - I'm in space ! . in the Small-Body Database of the Jet Propulsion Laboratory (English).
- ↑ Publication of the Minor Planet Center on January 27, 2013 , page 467 ( PDF , English; 2.5 MB)