翻訳と辞書 Words near each other ・ Terrestrial ・ Terrestrial Analogue Sites ・ Terrestrial animal ・ Terrestrial biological carbon cycle ・ Terrestrial broadcast ・ Terrestrial brownbul ・ Terrestrial crab ・ Terrestrial ecosystem ・ Terrestrial Ecosystem Monitoring Sites ・ Terrestrial gamma-ray flash ・ Terrestrial habitat ・ Terrestrial high-definition television ・ Terrestrial locomotion ・ Terrestrial Paradise (Bosch) ・ Terrestrial Physics ・ Terrestrial planet ・ Terrestrial Planet Finder ・ Terrestrial plant ・ Terrestrial reconnaissance ・ Terrestrial reference frame ・ Terrestrial splayfoot salamander ・ Terrestrial television ・ Terrestrial television in the United Kingdom ・ Terrestrial Time ・ Terrestrial Tones ・ Terrestrial Trunked Radio ・ Terrestrials (album) ・ Terrestris ・ Terrestrisuchus ・ Terrestrornithes 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 Terrestrial planet ： ウィキペディア英語版 Terrestrial planet A terrestrial planet, telluric planet or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars. The terms "terrestrial planet" and "telluric planet" are derived from Latin words for Earth (''Terra'' and ''Tellus''), as these planets are, in terms of composition, "Earth-like". Terrestrial planets have a solid planetary surface, making them substantially different from the larger giant planets, which are composed mostly of some combination of hydrogen, helium, and water existing in various physical states. ==Structure== All terrestrial planets have approximately the same type of structure: a central metallic core, mostly iron, with a surrounding silicate mantle. The Moon is similar, but has a much smaller iron core. Io and Europa are also satellites that have internal structures similar to that of terrestrial planets. Terrestrial planets can have canyons, craters, mountains, volcanoes, and other surface structures, depending on the presence of water and tectonic activity. Terrestrial planets have secondary atmospheres, generated through volcanism or comet impacts, in contrast to the giant planets, whose atmospheres are primary, captured directly from the original solar nebula. 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「Terrestrial planet」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.