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DBpedia 2016-04

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Matches in DBpedia 2016-04 for { ?s ?p "8900 AAVSO, provisional designation 1995 UD2, is a stony asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered by American amateur astronomer Dennis di Cicco at the U.S Sudbury Observatory (817), Massachusetts, on 24 October 1995.The stony S-type asteroid orbits the Sun at a distance of 2.2–2.9 AU once every 4.04 years (1,476 days). Its orbit shows an eccentricity of 0.15 and an inclination of 9 degrees from the plane of the ecliptic.In 2014, a photometric light-curve analysis at the U.S. Palomar Transient Factory, California, gave it a rotation period of 7000383680000000000♠3.8368±0.0005 hours with a brightness amplitude of 0.43 in magnitude, while the Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.20, which is a typical value for S-class asteroids.The minor planet was named after one of the premier astronomical organizations, the American Association of Variable Star Observers (AAVSO). It was founded in 1911 by amateur astronomer William Tyler Olcott (1873–1936), following Harvard astronomer Edward Charles Pickering's (1846–1919) prescient vision of a collaboration between amateurs and professionals in the name of science (also see 784 Pickeringia). The AAVSO is an astronomical pro-am organization that promotes the study of variable stars to both amateur and professional astronomers, maintaining the largest database of variable star observations in the world."@en }

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