3785 Kitami
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3785 Kitami, provisional designation Template:Mp, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 19 kilometers in diameter. The asteroid was discovered by Japanese astronomer Tsutomu Seki at Geisei Observatory on 30 November 1986, and named after the city of Kitami, Japan.[1]
Orbit and classification
The C-type asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.7–3.8 AU once every 5 years and 10 months (2,127 days). Its orbit has an eccentricity of 0.17 and an inclination of 2° with respect to the ecliptic.[2] The first observation was made at Simeiz Observatory in 1934, and the first used precovery was taken at the Australian Siding Spring Observatory in 1979, extending the asteroid's observation arc by 7 years prior to its official discovery date.[1]
Physical characteristics
Rotation period
In December 2009, a rotational lightcurve of Kitami was obtained from photometric observations by amateur astronomer René Roy at his at Blauvac Observatory, France. The lightcurve gave a rotation period of Script error: No such module "val". hours with a brightness variation of 0.30 in magnitude (U=3-Script error: No such module "Check for unknown parameters".).[3]
Diameter and albedo
Based on the survey carried out by NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kitami measures 19.7 and 20.5 kilometers in diameter and its surface has an albedo of 0.066 and 0.072, respectively,[4][5] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08 and calculates a diameter of 17.1 kilometers.[6]
Naming
This minor planet was named for the Japanese city of Kitami, where the Kitami Observatory is located. It is known for its many astrometric observations of small Solar System bodies by several amateur astronomers. Kitami is a "friendship city" of the discoverer's own city of Kochi (also see 2396 Kochi), and is located on the island on Hokkaido, after which the minor planet 3720 Hokkaido is named.[7] The official naming citation was published by the Minor Planet Center on 27 August 1988 (M.P.C. 13482Script error: No such module "Check for unknown parameters".).[8]
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Template: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
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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