941 Murray
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941 Murray (prov. designation: Template:Mp or Template:Mp) is a background asteroid, approximately Script error: No such module "convert". in diameter, located in the central region of the asteroid belt. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 10 October 1920.[1] The X-type asteroid has a short rotation period of 3.4 hours. It was named after British professor Gilbert Murray (1866–1957).[2]
Orbit and classification
Murray 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] It orbits the Sun in the central asteroid belt at a distance of 2.2–3.3 AU once every 4 years and 8 months (1,695 days; semi-major axis of 2.78 AU). Its orbit has an eccentricity of 0.20 and an inclination of 7° with respect to the ecliptic.[5] The body's observation arc begins at Vienna Observatory on 11 October 1920, the night after its official discovery observation.[1]
Naming
This minor planet was named after Gilbert Murray (1866–1957), British classical scholar and diplomat who helped post-war Austria in 1920 through the League of Nations. The Template:MoMP was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 91Script error: No such module "Check for unknown parameters".).[2]
Physical characteristics
In the Tholen classification, Murray is a carbonaceous C-type asteroid (CX), somewhat similar to that of an X-type, while in the Bus-Binzel SMASS classification, it is an X-type asteroid.[5][4]
Rotation period
In December 2018, a rotational lightcurve of Murray was obtained from photometric observations by the Spanish astronomer group OBAS. Lightcurve analysis gave a notably short rotation period of Script error: No such module "val". hours with a brightness amplitude of Script error: No such module "val". magnitude (U=2Script error: No such module "Check for unknown parameters".).[6][7]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Murray measures Script error: No such module "val". kilometers in diameter and its surface has an albedo of Script error: No such module "val"..[8] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 27.26 kilometers based on an absolute magnitude of 11.55.[6] The WISE team also published an alternative mean diameter Script error: No such module "val". with an albedo of Script error: No such module "val"..[6]
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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