|
120375 Kugel
120375 Kugel, provisional designation: 2005 PB6, is a background asteroid from the inner regions of the asteroid belt, approximately 1 kilometer (0.6 miles) in diameter. It was discovered on 10 August 2005, by French amateur astronomer Claudine Rinner at her Ottmarsheim Observatory (224) in France.[1] The stony S/Q-type asteroid in the region of the Florian clan has a tentative rotation period of 6.9 hours.[5] It was named after French astronomer François Kugel.[1] Orbit and classificationKugel 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] Based on osculating Keplerian orbital elements, the asteroid has also been considered a member of the Flora family (402), a giant asteroid clan and the largest family of stony asteroids in the main belt.[5] It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.8 AU once every 3 years and 6 months (1,289 days; semi-major axis of 2.32 AU). Its orbit has an eccentricity of 0.22 and an inclination of 3° with respect to the ecliptic.[2] The body's observation arc begins with its first observation as 1998 SM108 at Lincoln Laboratory ETS in September 1998, nearly 7 years prior to its official discovery observation at Ottmarsheim.[1] NamingThis minor planet was named after French amateur astronomer François Kugel (born 1959), an active observer of comets and a collaborator of the discoverer. He has founded the Chante-Perdrix Observatory (A77) in 2005.[1] The official naming citation was published by the Minor Planet Center on 6 August 2009 (M.P.C. 66728).[8] Physical characteristicsIn the SDSS-based taxonomy, Kugel has an SQ-type that transitions between the common S-type and less common Q-type asteroids.[7] Rotation periodIn August 2012, a rotational lightcurve of Kugel was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a tentative rotation period of 6.923±0.0085 hours with a weak brightness amplitude of 0.09 magnitude (U=1).[6] As of 2021, no secure period has been obtained.[5] Diameter and albedoKugel has not been observed by any of the space-based surveys such as the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the Akari satellite or IRAS. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora the parent body of the Flora family – and calculates a diameter of 1.05 kilometers based on an absolute magnitude of 17.07.[5] References
External links
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Portal di Ensiklopedia Dunia
