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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 August 28   
           A nebula that appears blue in the middle and is surrounded by   
       red-glowing gas is featured. Dramatic lanes of dark dust cut through   
      the nebula's left side. A group of stars is visible toward the nebula's   
         center. Please see the explanation for more detailed information.   
      
                        Star Formation in the Pacman Nebula   
                      Image Credit & Copyright: Craig Stocks   
      
      Explanation: Look through the cosmic cloud cataloged as NGC 281 and you   
      might miss the stars of open cluster IC 1590. Formed within the nebula,   
      that cluster's young, massive stars ultimately power the pervasive   
      nebular glow. The eye-catching shapes looming in the featured portrait   
      of NGC 281 are sculpted dusty columns and dense Bok globules seen in   
      silhouette, eroded by intense, energetic winds and radiation from the   
      hot cluster stars. If they survive long enough, the dusty structures   
      could also be sites of future star formation. Playfully called the   
      Pacman Nebula because of its overall shape, NGC 281 is about 10,000   
      light-years away in the constellation Cassiopeia. This sharp composite   
      image was made through narrow-band filters. It combines emission from   
      the nebula's hydrogen and oxygen atoms to synthesize red, green, and   
      blue colors. The scene spans well over 80 light-years at the estimated   
      distance of NGC 281.   
      
                          Tomorrow's picture: spiral webb   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
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