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   TID: MBSE-FIDO 1.0.7.22 (GNU/Linux-x86_64)   
                           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.   
      
                                 2021 December 10   
      
                              Eclipse on a Polar Day   
                    Image Credit & Copyright: Stephanie Ziyi Ye   
      
      Explanation: During polar day, in Arctic and Antarctic summer, the Sun   
      stays above the horizon for periods of 24 hours or more. Recorded on   
      December 4, this fisheye timelapse image tracks the Sun in multiple   
      frames as it completes a circle in the summer sky above Union Glacier,   
      Antarctica. Of course on that date, Union Glacier's sky did grow dark   
      even though the Sun was above the horizon. Captured during the brief   
      period of totality, an eclipsed Sun is at bottom center of the   
      composite view. Near the edge of the total eclipse path across planet   
      Earth, the Moon's shadow darkens the sky above.   
      
                         Tomorrow's picture: light-weekend   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
                   NASA Web Privacy Policy and Important Notices   
                         A service of: ASD at NASA / GSFC   
                                & Michigan Tech. U.   
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