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1447 Utra
1447 Utra, provisional designation 1938 BB, is a stony asteroid and slow rotator from the inner regions of the asteroid belt, about 13 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 26 January 1938.〔 The S-type asteroid orbits the Sun at a distance of 2.4–2.6 AU once every 4.04 years (1,474 days). Its orbit shows an eccentricity of 0.04 and is tilted by 5 degrees to the plane of the ecliptic. It has a very long rotation period of hours and an albedo of 0.38 and 0.30, according to the results from the Akari and Wide-field Infrared Survey Explorer missions, respectively.〔〔〔 The minor planet was named after the northeastern Finnish town, Utra, birthplace of the discoverer.〔 == References ==
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