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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.   
      
                                    2023 May 19   
      
                              Curly Spiral Galaxy M63   
         Image Credit & Copyright: Sophie Paulin, Jens Unger, Jakob Sahner   
      
      Explanation: A bright spiral galaxy of the northern sky, Messier 63 is   
      nearby, about 30 million light-years distant toward the loyal   
      constellation Canes Venatici. Also cataloged as NGC 5055, the majestic   
      island universe is nearly 100,000 light-years across, about the size of   
      our own Milky Way. Its bright core and majestic spiral arms lend the   
      galaxy its popular name, The Sunflower Galaxy. This exceptionally deep   
      exposure also follows faint, arcing star streams far into the galaxy's   
      halo. Extending nearly 180,000 light-years from the galactic center,   
      the star streams are likely remnants of tidally disrupted satellites of   
      M63. Other satellite galaxies of M63 can be spotted in the remarkable   
      wide-field image, including faint dwarf galaxies, which could   
      contribute to M63's star streams in the next few billion years.   
      
                       Tomorrow's picture: Galileo's Europa   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
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