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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 1746 Brouwer ： ウィキペディア英語版 1746 Brouwer 1746 Brouwer, provisional designation 1963 RF, is a dark, reddish Hildian asteroid from the outermost region of the asteroid belt, about 64 kilometers in diameter. It was discovered on September 14, 1963 by the Indiana Asteroid Program at the U.S. Goethe Link Observatory near Brooklyn, Indiana.〔 The asteroid is a member of the Hilda family, a large group that orbits in resonance with the gas giant Jupiter and are thought to originate from the Kuiper belt. The body orbits the Sun at a distance of 3.1–4.8 AU once every 7 years and 10 months (2,867 days). Its orbit shows an eccentricity of 0.21 and is tilted by 8 degrees to the plane of the ecliptic. It has a rotation period of 19.8 hours.〔 The reddish D-type asteroid has a low albedo of 0.05, based on observations made by the space-based IRAS, Akari and WISE/NEOWISE missions.〔〔〔 It was named in honor of Dutch–American astronomer Dirk Brouwer (1902–1966). Originally at Leiden University and specialized in celestial mechanics, he became director of the Yale University Observatory and was the president of IAU's commission 20, ''Positions & Motions of Minor Planets, Comets & Satellites'', from 1948 to 1955.〔 == 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「1746 Brouwer」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.