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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 1644 Rafita ： ウィキペディア英語版 1644 Rafita 1644 Rafita, provisional designation 1935 YA, is a stony asteroid from the inner regions of the asteroid belt, about 16 kilometers in diameter. It was discovered by Spanish astronomer Rafael Carrasco at the Royal Observatorio Astronómico de Madrid, Spain on 16 December 1935.〔 The asteroid orbits the Sun at a distance of 2.2–2.9 AU once every 4 years and 1 month (1,486 days). Its orbit shows an eccentricity of 0.16 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 6.8 hours.〔 Based on results from the Akari, WISE and NEOWISE mission, the S-type asteroid has a relatively low albedo of 0.10–0.15.〔〔〔 The minor planet was named by the discoverer in honor of his late son, Rafael Carrasco.〔 == 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「1644 Rafita」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.