Английская Википедия:27270 Guidotti
Шаблон:Use dmy dates Шаблон:Infobox planet
27270 Guidotti, provisional designation Шаблон:Mp, is a carbonaceous background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 2 January 2000, by Italian astronomers Luciano Tesi and Alfredo Caronia at the Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, Italy.[1] The asteroid was named after amateur astronomer Guido Guidotti.[2]
Orbit and classification
Guidotti is a non-family from the main belt's background population.[3] It orbits the Sun in the inner asteroid belt at a distance of 2.3–2.6 AU once every 3 years and 10 months (1,398 days). Its orbit has an eccentricity of 0.06 and an inclination of 3° with respect to the ecliptic.[4]
The body's observation arc begins with a precovery from the Digitized Sky Survey taken at Palomar Observatory in October 1991, more than 8 years prior to its official discovery observation at San Marcello in 2000.[1]
Physical characteristics
Guidotti has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey,[5] as well as by SDSS-MFB (Masi Foglia Bus).[6]
Rotation period
In March 2008, a rotational lightcurve of Guidotti was obtained from photometric observations by Slovak astronomers Adrian Galad and Leonard Kornoš. Analysis of the fragmentary lightcurve gave a rotation period of 2.6 hours with a brightness amplitude of 0.3 magnitude (Шаблон:Small).[7] As of 2017, no secure period has been obtained.[6]
Diameter and albedo
Guidotti has not been observed by any of the spaced-based surveys such as the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the Japanese Akari satellite or the Infrared Astronomical Satellite.
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 3.74 kilometers based on an absolute magnitude of 14.5.[6] Based on a generic magnitude-to diameter conversion, using a typical albedo for carbonaceous asteroids of 0.06, Guidotti measures 6.9 kilometers in diameter.[8]
Naming
This minor planet was named after Guido Guidotti (born 1946), an Italian amateur astronomer and founder of the Association of Astronomy "A. Pieri" (Шаблон:Lang-it), in Valdinievole, Tuscany, Italy. He is an observer of asteroids and comets, and organizer of lectures and exhibitions on astronomical subjects.[2] The official naming citation was published by the Minor Planet Center on 26 November 2004 (Шаблон:Small).[9]
References
External links
- Associazione Astrofili Valdinievole "A. Pieri"
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (25001)-(30000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Английская Википедия
- Background asteroids
- Discoveries by Luciano Tesi
- Discoveries by Alfredo Caronia
- Named minor planets
- Astronomical objects discovered in 2000
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