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2449 Kenos
2449 Kenos, provisional designation 1978 GC, is a bright stony asteroid and medium-sized Mars-crosser from the inner regions of the asteroid belt, about 3 kilometers in diameter. It was discovered by American astronomer William Liller at Cerro Tololo Inter-American Observatory in Chile, on 8 April 1978.〔
The E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. ''Kenos'' orbits the Sun at a distance of 1.6–2.2 AU once every 2 years and 8 months (963 days). Its orbit shows an eccentricity of 0.17 and is notably tilted by 25 degrees to the plane of the ecliptic. Based on assumption made by the Collaborative Asteroid Lightcurve Link, the body has an high albedo of 0.4, which is typical for E-type asteroids with a magnesium silicate surface ''(also see Enstatite chondrite)''.
Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado during 2007 produced a light-curve with a period of hours and a brightness range of in magnitude.〔 Two more recent observations confirmed the 3.85-hour period.〔〔
The minor planet was named after Kenos, the first man in the Selknam mythology of the native Americans of Tierra del Fuego, sent by the Supreme Being to bring order into the world. He created the human race by using peat to make male and female organs, taught them language and instructed them in rules to fashion a harmonious society.〔
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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