(2246) Bowell
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Asteroid (2246) Bowell |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 3.9579 AU |
| eccentricity | 0.0936 |
| Perihelion - aphelion | 3.5874 AU - 4.3284 AU |
| Inclination of the orbit plane | 6.4936 ° |
| Length of the ascending node | 155.6738 ° |
| Argument of the periapsis | 21.0189 ° |
| Sidereal period | 7.87 a |
| Mean orbital velocity | 14.99 km / s |
| Physical Properties | |
| Medium diameter | 44.21 (± 3.2) km |
| Albedo | 0.0540 (± 0.009) |
| Rotation period | 4.992 h |
| Absolute brightness | 10.56 mag |
| Spectral class | D. |
| history | |
| Explorer | Edward LG Bowell |
| Date of discovery | December 14, 1979 |
| Another name | 1979 XH , 1942 GP, 1973 FH 2 , 1973 FR, 1976 SL 6 , 1977 SM 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. | |
(2246) Bowell is a main outer belt asteroid discovered by US astronomer Edward LG Bowell on December 14, 1979 at Anderson Mesa Station ( IAU code 095) of the Lowell Observatory in Coconino County , Arizona .
There had been unconfirmed sightings of the asteroid before: on June 10, 1942 (under the provisional name 1942 GP) at the Iso-Heikkilä Observatory of the University of Turku, as well as on September 25, 1976 (1976 SL 6 ) and September 23, 1977 (1977 SM 3 ) at the Crimean Observatory in Nautschnyj .
(2246) Bowell belongs to the Hilda group, that is, he moves in an orbital resonance of 3: 2 with the planet Jupiter around the sun . This group is named after the asteroid (153) Hilda . (2246) Bowell has a mean diameter of 44.21 km (± 3.2). Its albedo of 0.0540 (± 0.009) is relatively dark. It belongs to spectral class D, as individual investigations by Schelte John Bus and Richard P. Binzel found on April 7, 1997 at the 240 cm Hiltner Ritchey Chrétien telescope of the MDM Observatory at the Kitt Peak National Observatory . Asteroids of the spectral class D are characterized, among other things, by a low albedo and a reddish electromagnetic spectrum .
The asteroid was named after Edward LG Bowell on January 1, 1981 at the suggestion of British astronomer Brian Marsden .
Web links
- (2246) Bowell in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2246) Bowell in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (2246) Bowell according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (2246) Bowell at the IAU Minor Planet Center (English)
- ↑ Javier Licandro, Alvaro Alvarez-Candal, Julia de León, Noemi Pinilla-Alonso, Daniela Lazzaro, Humberto Campins: Spectral properties of asteroids in cometary orbits . Astronomy & Astrophysics , Volume 481, Pages 861 to 877, April 3, 2008. (English)
- ^ Scolded John Bus, Richard P. Binzel: 2246 Bowell CCD Spectrum . Published in the NASA Planetary Data System in October 2004. (English)