755 Quintilla

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755 Quintilla (prov. designation: Template:Mp or Template:Mp) is a metallic background asteroid from the outer regions of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 6 April 1908, by American astronomer Joel Metcalf at the Taunton Observatory Template:Obscode in Massachusetts, United States.[1] For its size, the M-type asteroid has a relatively short rotation period of 4.55 hours. It was named Quintilla, an Italian female first name, for no reason other than being the first asteroid name beginning with the letter "Q".[2]

Orbit and classification

Quintilla 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 outer asteroid belt at a distance of 2.7–3.6 AU once every 5 years and 8 months (2,073 days; semi-major axis of 3.18 AU). Its orbit has an eccentricity of 0.14 and an inclination of 3° with respect to the ecliptic.[6] The body's observation arc begins at Vienna Observatory on 1 September 1915, almost 7 years after its official discovery observation by Joel Metcalf at Taunton.[1]

Naming

This minor planet was named Quintilla, a name of an Italian first name, that was proposed by Arville D. Walker, secretary to the American astronomer and director of Harvard Observatory Harlow Shapley (1885–1972), as no other asteroid name began with the letter "Q" when it was named in 1926. The Template:MoMP was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 76Script error: No such module "Check for unknown parameters".).[2]

Physical characteristics

In the Tholen classification, Quintilla is a metallic M-type asteroid.[6]

Rotation period

Several rotational lightcurves of Quintilla were obtained from photometric observations. Analysis of the best-rated lightcurves by Robert K. Buchheim and Donald Pray (2004), Laurent Bernasconi, Reiner Stoss, Petra Korlević, Maja Hren, Aleksandar Cikota, Ljuban Jerosimic, and Raoul Behrend (2005), as well as Joseph Masiero (2006), gave a well-defined rotation period of (Script error: No such module "val".), (Script error: No such module "val".) and (Script error: No such module "val".) hours with a brightness variation of (Script error: No such module "val".), (Script error: No such module "val".) and (Script error: No such module "val".) magnitude, respectively (U=3/3/3Script error: No such module "Check for unknown parameters".).[7][8][9] In November 2018, Michael and Matthew Fauerbach obtained a period of (Script error: No such module "val".) hours and an amplitude of (Script error: No such module "val".) magnitude (U=2Script error: No such module "Check for unknown parameters".).[10]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite, the Infrared Astronomical Satellite IRAS, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Quintilla 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.[11][12][13][14]

Alternative mean-diameter measurements published by the WISE team include (Script error: No such module "val".) and (Script error: No such module "val".) with corresponding albedos of (Script error: No such module "val".) and (Script error: No such module "val".).[4][15] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1781 and a diameter of 36.16 kilometers based on an absolute magnitude of 9.7.[15]

References

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  1. ↑ a b Script error: No such module "citation/CS1".
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  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "Citation/CS1". (PDS main page)
  6. ↑ a b Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "Citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ Script error: No such module "Citation/CS1".
  11. ↑ Script error: No such module "Citation/CS1". (online, AcuA catalog p. 153)
  12. ↑ Script error: No such module "Citation/CS1".
  13. ↑ Script error: No such module "Citation/CS1".
  14. ↑ Script error: No such module "Citation/CS1".
  15. ↑ a b Script error: No such module "citation/CS1".

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External links

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