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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 Asaph Hall, Jr. ： ウィキペディア英語版 Asaph Hall, Jr. Asaph Hall, Jr. (October 6, 1859 – January 12, 1930) was an American astronomer. He was the son of Asaph Hall, who discovered the moons of the planet Mars. One of his brothers was Percival Hall. ==Early life and education== Hall was born in Cambridge, Massachusetts in 1859. He was the son of the astronomer Asaph Hall and the mathematician Angeline Stickney Hall. He grew up in Washington, DC where his father worked at the United States Naval Observatory. He attended the Columbian College in the District of Columbia (now George Washington University) and then Harvard University, where he received his undergraduate degree in 1882. After graduation Hall became an assistant at the Naval Observatory. In 1885 he went to Yale University as a graduate student and an assistant at Yale Observatory. Because of a large difference between his father's measurement of the mass of Saturn at the Naval Observatory and that of Friedrich Bessel in Germany, Hall used the Yale heliometer to determine the mass of Saturn using the orbit of Titan. His results confirmed Bessel's measurement. He received his Ph.D. in 1889.〔 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「Asaph Hall, Jr.」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.