6296 Cleveland
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6296 Cleveland, provisional designation Template:Mp, is a Hungaria asteroid from the innermost regions of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 12 July 1988, by American astronomer Eleanor Helin at the Palomar Observatory in California.[1] The presumed E-type asteroid has a long rotation period of 30.8 hours and possibly an elongated shape.[2] It was named for the city of Cleveland in the U.S. state of Ohio.[1]
Orbit and classification
Cleveland is a Hungaria asteroid, a dynamical group that forms the innermost dense concentration of asteroids in the Solar System.[2] However it is a background asteroid and does not belong to the Hungaria family.[3][4] It orbits the Sun in the inner main-belt at a distance of 1.8–2.0 AU once every 2 years and 7 months (950 days; semi-major axis of 1.89 AU). Its orbit has an eccentricity of 0.06 and an inclination of 27° with respect to the ecliptic.[5] The body's observation arc begins with its first observation as Template:Mp at Crimea–Nauchnij in January 1982, more than six years prior to its official discovery observation at Palomar .[1]
Physical characteristics
Cleveland is an assumed E-type asteroid.[2]
Rotation period
In April 2011, a rotational lightcurve of Cleveland was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory in Colorado. Lightcurve analysis gave a rotation period of 30.84 hours with a brightness amplitude of 0.70 magnitude, indicative of a non-spherical shape (U=3Script error: No such module "Check for unknown parameters".).[2][6]Template:Efn While not being a slow rotator, ClevelandTemplate:'s period is significantly longer than for most other asteroids, which typically have periods between 2 and 20 hours. The result supersedes previous measurements that gave 15.38 and 15.65 hours, or half the period solution of the 2011 measurement (U=2/2Script error: No such module "Check for unknown parameters".).[7][8]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Cleveland measures between 3.179 and 3.74 kilometers in diameter and its surface has an albedo between 0.28 and 0.481.[9][10]
The Collaborative Asteroid Lightcurve Link adopts an albedo of 0.481 and a diameter of 3.18 kilometers based on an absolute magnitude of 13.9.[2]
Naming
This minor planet was named after the U.S. city of Cleveland as a tribute to its bicentennial celebration.[1] The official naming citation was published by the Minor Planet Center on 9 September 1995 (M.P.C. 25655Script error: No such module "Check for unknown parameters".).[11]
Notes
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Template:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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