Английская Википедия:3254 Bus
Шаблон:Use dmy dates Шаблон:Infobox planet
3254 Bus, provisional designation Шаблон:Mp, is a rare-type Hildian asteroid from the outermost region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 17 October 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona.[1] It is named after astronomer Schelte J. Bus.[2]
Orbit and classification
Located in the outermost part of the main-belt, Bus is a member of the Hilda family, a large orbital group of asteroids that are thought to have originated from the Kuiper belt.[1] It orbits the Sun at a distance of 3.3–4.6 AU once every 7 years and 10 months (2,873 days). Its orbit has an eccentricity of 0.16 and an inclination of 4° with respect to the ecliptic.[3] It was first identified as Шаблон:Mp at Crimea–Nauchnij, extending the body's observation arc by 3 weeks prior to its official discovery observation at Flagstaff.[1]
Physical characteristics
In the SMASS taxonomy, Bus is a rare T-type asteroid, while NASA's Wide-field Infrared Survey Explorer (WISE) characterizes Bus as a dark D-type asteroid.[3][4]
Rotation period
In the late 1980s or early 1990s, a rotational lightcurve of Bus was obtained from photometric observations by American astronomer Richard P. Binzel. Lightcurve analysis gave a rotation period of 6.62 hours with a brightness variation of 0.31 magnitude (Шаблон:Small).[5]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the WISE spacecraft with its subsequent NEOWISE mission, Bus measures 31.104 and 35.07 kilometers in diameter and its surface has an albedo of 0.058 and 0.073, respectively.[4][6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 32.03 kilometers using an absolute magnitude of 11.2.[7]
Naming
This minor planet was named after American astronomer Schelte J. Bus, a prolific discoverer of minor planets and comets.[2] The approved naming citation was published by the Minor Planet Center on 2 July 1985 (Шаблон:Small).[8]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Английская Википедия
- Hilda asteroids
- Discoveries by Edward L. G. Bowell
- Named minor planets
- T-type asteroids (SMASS)
- Astronomical objects discovered in 1982
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