1958 Chandra
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1958 Chandra (prov. designation: Template:Mp) is a dark background asteroid from the outer region of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 24 September 1970, by Argentinian astronomer Carlos Cesco at the Yale–Columbia Southern Station of the Leoncito Astronomical Complex in San Juan, Argentina (also see Félix Aguilar Observatory).[1] It was named after astrophysicist Subrahmanyan Chandrasekhar.[2]
Orbit and classification
Chandra is a dark C-type asteroid that orbits the Sun in the outer main-belt at a distance of 2.6–3.6 AU once every 5 years and 6 months (1,997 days). Its orbit has an eccentricity of 0.17 and an inclination of 11° with respect to the ecliptic.[3] In April 1947, the asteroid was first identified as Template:Mp at Algiers Observatory. The body's observation arc begins 16 years prior to its official discovery observation with a precovery taken at Palomar Observatory in 1954.[1]
Naming
This minor planet was named in honor of Subrahmanyan Chandrasekhar (1910–1995), the Nobel Prize winning Indian–American theoretical astrophysicist (also see Chandrasekhar limit).[2] The approved naming citation was published by the Minor Planet Center on 1 November 1979 (M.P.C. 5013Script error: No such module "Check for unknown parameters".).[4]
Physical characteristics
Photometry
In December 2010, a rotational lightcurve was obtained for this asteroid from photometric observations at the U.S. Palomar Transient Factory, California. It gave a rotation period of Script error: No such module "val". hours with a brightness variation of 0.35 magnitude (U=2Script error: No such module "Check for unknown parameters".).[5] A second lightcurve, obtained by Italian amateur astronomer Silvano Casulli in August 2014, gave a concurring period of Script error: No such module "val". hours with an amplitude of 0.38 in magnitude (U=3-Script error: No such module "Check for unknown parameters".).[6]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 36.2 kilometers in diameter and its surface has an albedo of 0.07,[7] while the Collaborative Asteroid Lightcurve Link derives an albedo of 0.05 and a diameter of 33.8 kilometers with an absolute magnitude of 11.2.[8]
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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