MSGID: 1:153/757.0 512d013b   
   TZUTC: -0700   
   CHRS: LATIN-1 2   
                           Astronomy Picture of the Day   
      
       Discover the cosmos! Each day a different image or photograph of our   
         fascinating universe is featured, along with a brief explanation   
                       written by a professional astronomer.   
      
                                   2024 March 30   
      
                        Medieval Astronomy from Melk Abbey   
      Image Credit: Paul Beck (Univ. Vienna), Georg Zotti (Vienna Inst. Arch.   
                                     Science)   
                    Copyright: Library of Melk Abbey, Frag. 229   
      
      Explanation: Discovered by accident, this manuscript page provides   
      graphical insight to astronomy in medieval times, before the   
      Renaissance and the influence of Nicolaus Copernicus, Tycho de Brahe,   
      Johannes Kepler, and Galileo. The intriguing page is from lecture notes   
      on astronomy compiled by the monk Magister Wolfgang de Styria before   
      the year 1490. The top panels clearly illustrate the necessary geometry   
      for a lunar (left) and solar eclipse in the Earth-centered Ptolemaic   
      system. At lower left is a diagram of the Ptolemaic view of the Solar   
      System with text at the upper right to explain the movement of the   
      planets according to Ptolemy's geocentric model. At the lower right is   
      a chart to calculate the date of Easter Sunday in the Julian calendar.   
      The illustrated manuscript page was found at historic Melk Abbey in   
      Austria.   
      
                         Tomorrow's picture: eclipse below   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-6   
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