1136 Mercedes
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1136 Mercedes, provisional designation Template:Mp, is a background asteroid from the central regions of the asteroid belt, approximately 26 kilometers in diameter. It was discovered on 30 October 1929, by Catalan astronomer Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain.[1] The asteroid was named for the sister-in-law of the discoverer.[2]
Orbit and classification
Mercedes is not a member of any known asteroid family and belongs to the belt's background population.[3] It orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 1 month (1,501 days). Its orbit has an eccentricity of 0.26 and an inclination of 9° with respect to the ecliptic.[4] The body's observation arc begins at Yerkes Observatory in March 1931, more than a year after its official discovery observation at Fabra.[1]
Physical characteristics
Mercedes is an assumed S-type asteroid.[5]
Rotation period
The asteroid has an ambiguous rotation period. A lightcurve of Mercedes obtained in 1998, gave a period of 6.448 hours and a brightness variation of 0.10 magnitude (U=2Script error: No such module "Check for unknown parameters".),[6] while another lightcurve from 2007, gave a much longer period of 24.64 hours with an amplitude of 0.15 (U=2Script error: No such module "Check for unknown parameters".).[7] A third period of 15.6 hours is considered of poor quality (U=1Script error: No such module "Check for unknown parameters".).[8]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Mercedes measures between 25.296 and 33.19 kilometers in diameter and its surface has an albedo between 0.05 and 0.103.[9][10][11][12][13]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1007 and a diameter of 25.23 kilometers based on an absolute magnitude of 11.1.[5]
Naming
This minor planet was named by Josep Comas i Solà for his sister-in-law, Mercedes. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 106Script error: No such module "Check for unknown parameters".).[2]
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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