1176 Lucidor
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1176 Lucidor, provisional designation Template:Mp, is a carbonaceous background asteroid from the central region of the asteroid belt, approximately 30 kilometers in diameter. It was discovered by Eugène Delporte in 1930, who named it after a friend.
Discovery
Lucidor was discovered on 15 November 1930, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. On the same day, it was independently discovered by Max Wolf at the Heidelberg Observatory in Germany, and 15 days later by Grigory Neujmin at Simeiz Observatory in Crimea.[1] The body's observation arc begins with its identification as Template:Mp at the Tokyo Astronomical Observatory (389Script error: No such module "Check for unknown parameters".) in January 1927, nearly 4 years prior to its official discovery observation at Uccle.[1]
Orbit and classification
Lucidor has not been grouped to any known asteroid family. It orbits the Sun in the central main belt at a distance of 2.3–3.1 AU once every 4 years and 5 months (1,613 days). Its orbit has an eccentricity of 0.14 and an inclination of 7° with respect to the ecliptic.[2]
Physical characteristics
In the SMASS classification, Lucidor is a carbonaceous C-type asteroid.[2]
Rotation period
In November 2005, two rotational lightcurves of Lucidor were independently obtained from photometric observations by Brian Warner at his Palmer Divide Observatory (716Script error: No such module "Check for unknown parameters".) in Colorado as well as by René Roy at Blauvac, France (627Script error: No such module "Check for unknown parameters".), and Federico Manzini and Roberto Crippa at Sozzago in Italy (A12Script error: No such module "Check for unknown parameters".). Lightcurve analysis gave a well-defined rotation period of 4.075 and 4.0791 hours with a low brightness amplitude of 0.05 and 0.06 magnitude, respectively (U=3/3Script error: No such module "Check for unknown parameters".).[3][4]Template:Efn A low brightness variation typically indicates that the body has a spheroidal rather than an irregular shape.
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, Lucidor measures between 17.489 and 31.48 kilometers in diameter and its surface has an albedo between 0.04 and 0.159.[5][6][7][8][9]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0544 and a diameter of 30.59 kilometers based on an absolute magnitude of 11.35.[10]
Naming
This minor planet was named after an amateur astronomer and friend of the discoverer. "Lucidor" is a female name. Her full name has not been published. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 109Script error: No such module "Check for unknown parameters".).[11]
Notes
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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