736 Harvard
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736 Harvard (prov. designation: Template:Mp or Template:Mp) is a stony background asteroid from the inner regions of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 16 November 1912, by American astronomer Joel Hastings Metcalf at the Winchester Observatory Template:Obscode.[1] The bright S-type asteroid has a rotation period of 6.7 hours. It was named after Harvard University in Cambridge, Massachusetts.[2]
Orbit and classification
Located in the orbital region of the Flora family (402Script error: No such module "Check for unknown parameters".), Harvard is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[3][4][5] It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.6 AU once every 3 years and 3 months (1,193 days; semi-major axis of 2.2 AU). Its orbit has an eccentricity of 0.17 and an inclination of 4° with respect to the ecliptic.[6] The body's observation arc begins at Heidelberg Observatory on 9 December 1912, or three weeks after its official discovery observation by Metcalf at Winchester.[1]
Naming
This minor planet was named in honor of the prestigious Harvard University in Cambridge, Massachusetts, United States. The Template:MoMP was also mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 74Script error: No such module "Check for unknown parameters".).[2]
Physical characteristics
In the Tholen classification, Harvard is a common, stony S-type asteroid.[6][4]
Rotation period
In 1970s, a rotational lightcurve of Harvard was obtained from photometric observations by Ed Tedesco.[7] Lightcurve analysis gave a well-defined rotation period of Script error: No such module "val". hours with a brightness variation of Script error: No such module "val". magnitude (U=3Script error: No such module "Check for unknown parameters".).[8]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), and the Japanese Akari satellite, Harvard measures (Script error: No such module "val".), (Script error: No such module "val".) and (Script error: No such module "val".) kilometers in diameter and its surface has an albedo of (Script error: No such module "val".), (Script error: No such module "val".) and (Script error: No such module "val".), respectively.[9][10][11] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2051 and a diameter of 16.89 kilometers based on an absolute magnitude of 11.2.[8] An asteroid occultation observed on 25 May 2003, gave a best-fit ellipse dimension of (Script error: No such module "val".) with a low quality rating of 1.[4] These timed observations are taken when the asteroid passes in front of a distant star.[4]
References
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External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- 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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