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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 1542 Schalén ： ウィキペディア英語版 1542 Schalén 1542 Schalén, provisional designation 1941 QE, is a dark and reddish asteroid from the outer region of the asteroid belt, about 45 kilometers in diameter. It was discovered on 26 August 1941, by Finnish astonomer Yrjö Väisälä at Turku Observatory in the southwestern parts of Finland.〔 The asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits.〔 It has a D-type spectrum, which is more commonly found among Hildian asteroids and Jupiter trojans. Bodies with a D-type spectra are thought to have originated in the Kuiper belt. It orbits the Sun at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,987 days). Its orbit shows an eccentricity of 0.12 and is tilted by 3 degrees to the plane of the ecliptic. It has a rotation period of 7.5 hours〔 and an albedo of 0.07, as observed by the Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission.〔 The minor planet was named in honour of Swedish astronomer Karl Schalén (1902–1993), who was a director of the Swedish Lund Observatory.〔 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1542 Schalén」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.