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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 Edison Pettit ： ウィキペディア英語版 Edison Pettit Edison Pettit (September 22, 1889 – May 6, 1962) was an American astronomer. He was born in Peru, Nebraska. He taught astronomy at Washburn College in Topeka, Kansas from 1914 to 1918. He married Hannah Steele, who was an assistant at Yerkes Observatory, and received his Ph.D. from the University of Chicago in 1920. Shortly after he became a staff member at Mount Wilson Observatory. He initially specialized in solar astronomy and built his own thermocouples. He also made visual observations of Mars and Jupiter. Even after his retirement he continued to make spectrographs for various observatories in the machine shop in his home. Pettit crater on the Moon and another Crater on Mars are named after him. ==External links== * (Obituary ) * 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「Edison Pettit」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.