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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 647 Adelgunde ： ウィキペディア英語版 647 Adelgunde 647 Adelgunde, provisional designation 1907 AD, is an asteroid from the asteroid belt discovered by German astronomer August Kopff at Heidelberg Observatory on 11 September 1907. The X-type asteroid orbits the Sun at a distance of 2.0–2.9 AU once every 3.82 years (1,394 days). It has a rotation period of 32 hours.〔 The origin of the asteroid's name is unknown.〔 It is speculated that the name comes from a list created in 1913 by the Astronomisches Rechen-Institut (ARI) containing suggestions of female names from history and mythology for the naming of minor planets. At the time the naming process was not well developed and the ARI feared inconsistencies and potential confusion. The list was sent to several German astronomers, including Kopff, with the invitation to name all their discovered minor planets up to number 700.〔 == 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「647 Adelgunde」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.