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                           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.   
      
                                  2025 January 16   
      
                            M83: The Southern Pinwheel   
                   Image Credit: CTIO, NOIRLab, DOE, NSF, AURA;   
      Processing: T. A. Rector (U. Alaska Anchorage/NOIRLab), D. de Martin &   
                                M. Zamani (NOIRLab)   
      
      Explanation: Beautiful and bright spiral galaxy M83 lies a some twelve   
      million light-years away, near the southeastern tip of the very long   
      constellation Hydra. Prominent spiral arms traced by dark dust lanes   
      and blue star clusters lend this galaxy its popular name, The Southern   
      Pinwheel. Still, reddish star forming regions that dot this cosmic   
      pinwheel's spiral arms have suggested another nickname, the   
      Thousand-Ruby Galaxy. A mere 40,000 light-years across, smaller than   
      the Milky Way, M83 is a member of a group of galaxies that includes   
      active galaxy Centaurus A. In fact, the core of M83 itself is bright at   
      x-ray energies, showing a high concentration of neutron stars and black   
      holes left from an intense burst of star formation. This sharp color   
      image also features spiky foreground Milky Way stars and distant   
      background galaxies. The image data was captured with the Dark Energy   
      Camera and Blanco 4-meter telescope at Cerro Tololo Inter-American   
      Observatory.   
      
                        Tomorrow's picture: pixels in space   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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                                & Michigan Tech. U.   
      
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