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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 78 Diana ： ウィキペディア英語版 78 Diana 78 Diana (''dye-an'-a'') is a large and dark main-belt asteroid. Its composition is carbonaceous and primitive. It was discovered by Robert Luther on March 15, 1863,〔 and named after Diana, Roman goddess of the hunt. 78 Diana occulted a star on September 4, 1980. A diameter of 116 km was measured, closely matching the value given by the IRAS satellite. Photometric observations of this asteroid during 1986 and 2006–08 gave a light curve with a period of 7.2991 hours and a brightness variation in the range 0.02–0.104 magnitude.〔 Based upon radar data, the near surface solid density of the asteroid is 2.7.〔 Diana is expected to pass about from (29075) 1950 DA on August 5, 2150.〔 Main-belt asteroid 4217 Engelhardt (~9 km in diameter) will pass about from (29075) 1950 DA in 2736.〔 ==References== vec:Lista de asteroidi#78 Diana 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「78 Diana」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.