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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 NGC 925 ： ウィキペディア英語版 NGC 925 NGC 925 is a barred spiral galaxy located about 30〔 million light-years away in the constellation Triangulum. The morphological classification of this galaxy is SB(s)d,〔 which indicates that this has a bar structure and loosely wound spiral arms with no ring.〔 The spiral arm to the south is stronger than the northern arm, with the latter appearing flocculent and less coherent. The bar is offset from the center of the galaxy and is the site of star formation all along its length. Both of these morphological traits—a dominant spiral arm and the offset bar—are typically characteristics of a Magellanic spiral galaxy.〔 The galaxy is inclined at an angle of 55° to the line of sight along a position angle of 102°.〔 This galaxy is a member of the NGC 1023 Group, a nearby, gravitationally-bound group of galaxies associated with NGC 1023.〔 However, the nearest member lies at least distant from NGC 925. There is a 10 million solar mass () cloud of neutral hydrogen attached to NGC 925 by a streamer. It is uncertain whether this is a satellite dwarf galaxy, the remnant of a past tidal interaction, or a cloud of primordial gas.〔 == 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「NGC 925」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.