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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.   
      
                                  2022 October 19   
      
                         A Galaxy Beyond Stars, Gas, Dust   
            Image Credit & Copyright: Howard Trottier; Text: Emily Rice   
      
      Explanation: Do we dare believe our eyes? When we look at images of   
      space, we often wonder whether they are "real", and just as often the   
      best answer varies. In this case, the scene appears much as our eyes   
      would see it, because it was obtained using RGB (Red, Green, Blue)   
      filters like the cone cells in our eyes, except collecting light for 19   
      hours, not a fraction of a second. The featured image was captured over   
      six nights, using a 24-inch diameter telescope in the Sierra Nevada   
      Mountains, in California, USA. The bright spiral galaxy at the center   
      (NGC 7497) looks like it is being grasped by an eerie tendril of a   
      space ghost, and therein lies the trick. The galaxy is actually 59   
      million light years away, while the nebulosity is MBM 54, less than one   
      thousand light years away, making it one of the nearest cool clouds of   
      gas and dust -- galactic cirrus -- within our own Milky Way Galaxy.   
      Both are in the constellation of Pegasus, which can be seen high   
      overhead from northern latitudes in the autumn.   
      
                          Tomorrow's picture: open space   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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