1732 Heike
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1732 Heike, provisional designation Template:Mp, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter.
It was discovered on 9 March 1943, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after Heike Neckel, the granddaughter of astronomer Alfred Bohrmann.[1][2]
Classification and orbit
The S-type asteroid is a member of the Eos family. It orbits the Sun in the outer main-belt at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,911 days). Its orbit has an eccentricity of 0.11 and an inclination of 11° with respect to the ecliptic.[3] Heike was first identified as Template:Mp at Heidelberg Observatory in 1906. The body's first used observation was also taken at Heidelberg in 1924, when it was identified as Template:Mp, extending the body's observation arc by 19 years prior to its official discovery observation.[2]
Rotation period
In October 2010, a rotational lightcurve of Heike was obtained from photometric observations at the Truman Observatory. It gave a well-defined rotation period of 4.742 hours with a brightness variation of 0.32 magnitude (U=3Script error: No such module "Check for unknown parameters".),[4][5] superseding a previous period of 3.90 hours (U=2Script error: No such module "Check for unknown parameters".).[6]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 20.50 and 24.31 kilometers in diameter, and its surface has an albedo between 0.110 and 0.201.[7][8][9][10] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.132 and a diameter of 24.17 kilometers with an absolute magnitude of 10.9.[11]
Naming
This minor planet was named after Heike Neckel, granddaughter of German astronomer Alfred Bohrmann (1904–2000), who was a colleague of the discoverer at Heidelberg. The asteroid 1635 Bohrmann bears his name.[1] The official Template:MoMP was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3933Script error: No such module "Check for unknown parameters".).[12]
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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