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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 14827 Hypnos ： ウィキペディア英語版 14827 Hypnos 14827 Hypnos (also known by its provisional designation 1986 JK) is an Apollo near-Earth asteroid (NEA) discovered by Carolyn S. Shoemaker and Eugene Merle Shoemaker at Palomar Observatory on May 5, 1986. It is named after Hypnos, the Greek god of sleep. Hypnos may be the nucleus of an extinct comet that is covered by a crust several centimeters thick that prevents any remaining volatiles from outgassing. Hypnos is frequently perturbed by Jupiter.〔(【引用サイトリンク】title=JPL Close-Approach Data: 14827 Hypnos (1986 JK) )〕 In 1958, Hypnos passed less than 0.03 AU from both Earth and Mars.〔(【引用サイトリンク】publisher=Department of Mathematics, University of Pisa, ITALY )〕 Neither planet has been approached so closely by Hypnos since the 862 AD pass of Earth, or will be until the 2214 pass of Earth. It has a well determined orbit and has been observed 170 times since 1986.〔 ==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「14827 Hypnos」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.