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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 April 28   
       In the center is a colorful nebula, the most usually seen part of the   
           Ring Nebula. Several layers of red-glowing gas with different   
      structures are seen surrounding this center. Please see the explanation   
                          for more detailed information.   
      
                           Rings Around the Ring Nebula   
        Image Credit: Hubble, Large Binocular Telescope, Subaru Telescope;   
                      Composition & Copyright: Robert Gendler   
      
      Explanation: The Ring Nebula (M57) is more complicated than it appears   
      through a small telescope. The easily visible central ring is about one   
      light-year across, but this remarkably deep exposure - a collaborative   
      effort combining data from three different large telescopes - explores   
      the looping filaments of glowing gas extending much farther from the   
      nebula's central star. This composite image includes red light emitted   
      by hydrogen as well as visible and infrared light. The Ring Nebula is   
      an elongated planetary nebula, a type of nebula created when a Sun-like   
      star evolves to throw off its outer atmosphere and become a white dwarf   
      star. The Ring Nebula is about 2,500 light-years away toward the   
      musical constellation Lyra.   
      
        Your Sky Surprise: What picture did APOD feature on your birthday?   
                                    (post 1995)   
                      Tomorrow's picture: comet, planet, moon   
        __________________________________________________________________   
      
          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.   
      
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