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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.   
      
                                    2024 June 3   
      
                            NGC 2403 in Camelopardalis   
       Image Credit & Copyright: (Team F.A.C.T.) Lilian Lbt - Cyrille Malo -   
         Maxime Martin - Cl+¬ment Daniel - Paul Grasset - Louis Leroux-G+¬r+¬   
      
      Explanation: Magnificent island universe NGC 2403 stands within the   
      boundaries of the long-necked constellation Camelopardalis. Some 10   
      million light-years distant and about 50,000 light-years across, the   
      spiral galaxy also seems to have more than its fair share of giant star   
      forming HII regions, marked by the telltale reddish glow of atomic   
      hydrogen gas. The giant HII regions are energized by clusters of hot,   
      massive stars that explode as bright supernovae at the end of their   
      short and furious lives. A member of the M81 group of galaxies, NGC   
      2403 closely resembles a galaxy in our own local galaxy group with an   
      abundance of star forming regions, M33, the Triangulum Galaxy. Spiky in   
      appearance, bright stars in this portrait of NGC 2403 are in the   
      foreground, within our own Milky Way. Also in the foreground of the   
      deep, wide-field, telescopic image are the Milky Way's dim and dusty   
      interstellar clouds also known as galactic cirrus or integrated flux   
      nebulae. But faint features that seem to extend from NGC 2403 itself   
      are likely tidal stellar streams drawn out by gravitational   
      interactions with neighboring galaxies.   
      
                          Tomorrow's picture: tail tales   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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