翻訳と辞書 Words near each other ・ Near North Side, Chicago ・ Near North Side, Omaha ・ Near North, Minneapolis ・ Near Northeast Philadelphia ・ Near Northeast, Syracuse ・ Near Northeast, Washington, D.C. ・ Near Northside, Houston ・ Near Northwest, Texas ・ Near Oceania ・ Near passerine ・ Near polygon ・ Near poverty ・ Near Ruin ・ Near sets ・ NEAR Shoemaker ・ Near side of the Moon ・ Near sound data transfer ・ Near South Side ・ Near South Side, Chicago ・ Near space ・ Near the Beginning ・ Near the Rainbow's End ・ Near to Earth ・ Near to the Wild Heart ・ Near v. Minnesota ・ Near vertical incidence skywave ・ Near West End ・ Near West Side ・ Near West Side, Chicago ・ Near Westside Historic District Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Near side of the Moon ： ウィキペディア英語版 Near side of the Moon The near side of the Moon is the lunar hemisphere that is permanently turned towards the Earth, whereas the opposite side is the far side of the Moon. Only one side of the Moon is visible from Earth because the Moon rotates about its spin axis at the same rate that the Moon orbits the Earth, a situation known as synchronous rotation or tidal locking. The Moon is directly illuminated by the Sun, and the cyclically varying viewing conditions cause the lunar phases. The unilluminated portions of the Moon can sometimes be dimly seen as a result of earthshine, which is sunlight reflected off the surface of the Earth and onto the Moon. Since the Moon's orbit is both somewhat elliptical, and inclined to its equatorial plane, librations allow up to 59% of the Moon's surface to be viewed from Earth (but only half at any instant from any point). ==Names== The near side of the Moon is characterized by large dark areas that were believed to be seas by the astronomers who first mapped them, in the 17th century (notably, Giovanni Battista Riccioli and Francesco Maria Grimaldi). Although it was found out later that the Moon has no seas, the term "mare" (plural: maria) is still used. The lighter toned regions are referred to as "terrae", or more commonly, the "highlands".〔(University of Tennessee )〕 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「Near side of the Moon」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.