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1039 Sonneberga : ウィキペディア英語版 | 1039 Sonneberga
1039 Sonneberga, provisional designation 1924 TL, is a dark asteroid from the middle region of the asteroid belt, about 35 kilometers in diameter. It was discovered by German astronomer Max Wolf at Heidelberg Observatory on 24 November 1924.〔 The X-type asteroid orbits the Sun at a distance of 2.5–2.8 AU once every 4.39 years (1,603 days). Its orbit shows an eccentricity of 0.06 and is tilted by 5 degrees to the plane of the ecliptic. It has a rotation period of 34.2 hours〔 and an geometric albedo of about 0.04, according to the surveys carried out by IRAS, Akari, WISE and NEOWISE.〔〔〔〔 The minor planet was named for the city of Sonneberg, Thuringia in Germany and location of the Sonneberg Observatory.〔 It was founded in 1925 by astronomer Cuno Hoffmeister after whom the minor planets 1726 Hoffmeister and 4183 Cuno are named. == References ==
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