1366 Piccolo
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1366 Piccolo, provisional designation Template:Mp, is an asteroid from the background population of the outer asteroid belt, approximately 28 kilometers in diameter. It was discovered on 29 November 1932, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle.[1] The asteroid was named after Auguste Cauvin, chief-editor of the Belgian newspaper Le Soir.[2]
Orbit and classification
Piccolo is a non-family asteroid of the main belt's background population.[3] It orbits the Sun in the outer asteroid belt at a distance of 2.5–3.3 AU once every 4 years and 10 months (1,780 days; semi-major axis of 2.87 AU). Its orbit has an eccentricity of 0.14 and an inclination of 9° with respect to the ecliptic.[4]
The asteroid was first identified as Template:Mp at Johannesburg Observatory in July 1916. The body's observation arc begins at Uccle with its official discovery observation.[1]
Naming
This minor planet was named after the pseudonym of Auguste Cauvin, also known as "d'Arsac", long-time editor-in-chief of the Belgian newspaper Le Soir (c. 1898–1937). The pseudonym "piccolo" means "small" in Italian.[2] The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 124Script error: No such module "Check for unknown parameters".).[2] Asteroid 1350 Rosselia was also named after an editor of Le Soir by Delporte.
Physical characteristics
Piccolo has been characterized as an X-type asteroid by Pan-STARRS photometric survey,[5] while the LCDB assumes a stony S-type.[6]
Rotation period and poles
In June 1984, a first rotational lightcurve of Piccolo was obtained from photometric observations by American astronomer Richard Binzel. Lightcurve analysis gave a rotation period of 16.57 hours with a brightness variation of 0.33 magnitude (U=2Script error: No such module "Check for unknown parameters".).[7] In 2003 and 2005, two more lightcurves were obtained by French amateur astronomer René Roy. They gave a period of 16.048 and 16.05 hours and an amplitude of 0.24 and 0.29 magnitude, respectively (U=2/2Script error: No such module "Check for unknown parameters".).[8]
In 2016, the asteroid lightcurve has also been modeled using photometric data from various sources. It gave a concurring period of 16.1834 hours and two spin axis in ecliptic coordinates of (352.0°, 49.0°) and (201.0°, 55.0°).[9]
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Piccolo measures between 26.92 and 28.02 kilometers in diameter and its surface has an albedo between 0.1538 and 0.199.[10][11][12] In April 2003, an albedo of 0.131 and a diameter of 29.9 kilometers have also been deduced from a stellar occultation.[13]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1447 and a diameter of 27.50 kilometers based on an absolute magnitude of 10.52.[6]
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Script error: No such module "webarchive".)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, 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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