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The Adobe Flash Player is required in order to view this content. You can get it here: astronomyMain Entry: as·tron·o·my Pronunciation: \ə-ˈsträ-nə-mē\ Function: noun Inflected Form(s): plural as·tron·o·mies Etymology: Middle English astronomie, from Anglo-French, from Latin astronomia, from Greek, from astr- + -nomia -nomy Date: 13th century : the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties 
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