1117 Reginita
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1117 Reginita (prov. designation: Template:Mp) is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 24 May 1927, by Catalan astronomer Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain, who named it after his niece.[1][2] The bright S-type asteroid has a notably short rotation period of 2.9 hours and measures approximately Script error: No such module "convert". in diameter.
Orbit and classification
Reginita 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 inner asteroid belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,231 days; semi-major axis of 2.25 AU). Its orbit has an eccentricity of 0.20 and an inclination of 4° with respect to the ecliptic.[5] The asteroid was first observed as Template:Mp at Heidelberg Observatory in October 1904. The body's observation arc also begins at Heidelberg in April 1930, almost three years after its official discovery observation at Barcelona.[2]
Naming
This minor planet was named after the niece of the discoverer. The Template:MoMP was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 105Script error: No such module "Check for unknown parameters".).[1]
Physical characteristics
In the Tholen classification, Reginita is a common, stony S-type asteroid.[6]
Rotation period
Several rotational lightcurves of Reginita have been obtained from photometric observations since 1988.[7][8][9][10][11][12] The consolidated lightcurve analysis gave a rotation period of 2.946 hours with a brightness amplitude between 0.10 and 0.33 magnitude (U=3Script 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 (WISE), Reginita measures between 9.82 and 11.22 kilometers in diameter and its surface has an albedo between 0.293 and 0.36.[13][14][15][16][17] The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE data, that is, an albedo of 0.3516 and a diameter of 10.29 kilometers based on an absolute magnitude of 11.69.[6][16]
References
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External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, 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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