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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 1669 Dagmar ： ウィキペディア英語版 1669 Dagmar 1669 Dagmar, provisional designation 1934 RS, is a dark asteroid from the outer region of the asteroid belt, about 43 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 7 September 1934.〔 The asteroid is a member of the Themis family, a large group of asteroids in the outer main-belt. It has a notable G-type spectra (or Cg-type in the SMASS taxonomy), similar to 1 Ceres, the largest asteroid and only dwarf planet in the asteroid belt. ''Dagmar'' orbits the Sun at a distance of 2.8–3.5 AU once every 5 years and 7 months (2,033 days). Its orbit shows an eccentricity of 0.11 and is nearly coplanar with the plane of the ecliptic, inclined by only 1 degree. It has a provisional rotation period of 12 hours, as measured by Italian astronomer Federico Manzini at th SAS observatory in Novara.〔 Based on the surveys carried out by IRAS, Akari, WISE/NEOWISE, its albedo lies between 0.03 and 0.06.〔〔〔 The asteroid was named by the discoverer after a common German feminine name. No special meaning is assigned to this name.〔 == 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「1669 Dagmar」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.