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4617 Zadunaisky : ウィキペディア英語版 | 4617 Zadunaisky 4617 Zadunaisky is an asteroid named in honor of Argentinian astronomer and mathematician Pedro E. Zadunaisky. Pedro Elias Zadunaisky (1918-7 October 2009) was an astronomer who plotted the orbit of Saturn's most-distant moon, Phoebe, as well as several comets including Halley's Comet, and various satellites including Explorer I. He lived and died in Argentina. He was once a senior astronomer and a mathematician at the Smithsonian Astrophysical Observatory and at NASA's Goddard Space Flight Center.〔http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/10/09/BAC61A2HLA.DTL〕 ==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「4617 Zadunaisky」の詳細全文を読む
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