1540 Kevola
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1540 Kevola, provisional designation Template:Mp, is a dark background asteroid from the outer regions of the asteroid belt, approximately 42 kilometers in diameter. It was discovered on 16 November 1938, by astronomer Liisi Oterma at the Iso-Heikkilä Observatory in Turku, Finland.[1] The asteroid was named after the Finnish Kevola Observatory.[2]
Orbit and classification
Kevola is a non-family asteroid of the main belt's background population.[3] It orbits the Sun in the outer asteroid belt at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,758 days). Its orbit has an eccentricity of 0.09 and an inclination of 12° with respect to the ecliptic.[4]
The body's observation arc begins with its first identification as Template:Mp at Heidelberg Observatory in April 1926, more than 12 years prior to its official discovery observation at Turku.[1]
Naming
This minor planet was named for the Finnish Kevola Observatory Template:Obscode.[2] The official Template:MoMP was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3930Script error: No such module "Check for unknown parameters".).[5]
Physical characteristics
Kevola is an assumed carbonaceous C-type asteroid.[6]
Rotation period
In February 2007, a rotational lightcurve of Kevola was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a rotation period of 20.082 hours with a brightness variation of 0.23 magnitude (U=3-Script error: No such module "Check for unknown parameters".).[7] Another lightcurve obtained by astronomers at the Palomar Transient Factory in October 2010, gave a concurring period of 20.071 hours with an amplitude of 0.33 magnitude (U=2Script error: No such module "Check for unknown parameters".).[8]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kevola measures between 37.12 and 44.18 kilometers in diameter and its surface has an albedo between 0.0433 and 0.06.[9][10][11][12][13]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0474 and a diameter of 44.22 kilometers based on an absolute magnitude of 10.7.[6]
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Script error: No such module "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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