11949 Kagayayutaka
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11949 Kagayayutaka, provisional designation Template:Mp, is a stony background asteroid from the outer region of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 19 September 1993, by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory in eastern Hokkaidō, Japan.[1] The asteroid was named after Japanese artist Kagaya Yutaka.[2]
Orbit and classification
Kagayayutaka is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 2.5–3.6 AU once every 5 years and 5 months (1,984 days). Its orbit has an eccentricity of 0.18 and an inclination of 8° with respect to the ecliptic.[3] The body's observation arc starts with its official discovery observation.[1]
Naming
This minor planet was named after Kagaya Yutaka (born 1968), a Japanese space and digital artist and receiver of the Gold Medal in the American Digital Art Contest in 2000.[2] The approved naming citation was published by the Minor Planet Center on 10 September 2003 (M.P.C. 49674Script error: No such module "Check for unknown parameters".).[4]
Physical characteristics
Kagayayutaka has been characterized as a stony S-type asteroid by Pan-STARRS photometric survey.[5]
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Kagayayutaka measures 22.28 kilometers in diameter and its surface has a high albedo of 0.708,[6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 23.21 kilometers with an absolute magnitude of 11.9.[7]
Lightcurves
A rotational lightcurve of Kagayayutaka was obtained from photometric observations by French astronomer René Roy in November 2015. Lightcurve analysis gave a rotation period of Script error: No such module "val". hours with a brightness variation of 0.28 magnitude (U=3-Script 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 (10001)-(15000) – Minor Planet Center
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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