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   ESSNASA      Earth & Space Sci-Tech + NASA      10,823 messages   

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   Message 7,892 of 10,823   
   Alan Ianson to All   
   Daily APOD Report   
   16 Dec 21 14:06:07   
   
   MSGID: 1:153/757@fidonet 61479de3   
   PID: MBSE-FIDO 1.0.7.22 (GNU/Linux-x86_64)   
   CHRS: CP437 2   
   TZUTC: -0800   
   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 16   
      
                               Geminids of the South   
                      Image Credit & Copyright: Fefo Bouvier   
      
      Explanation: Fireflies flash along a moonlit countryside in this scene   
      taken on the night of December 13/14 from southern Uruguay, planet   
      Earth. On that night meteors fell in the partly cloudy skies above   
      during the annual Geminid meteor shower. Frames recorded over a period   
      of 1.5 hours are aligned in the composite image made with the camera   
      facing south. That direction was opposite the shower's radiant toward   
      the north and so the Geminid meteor streaks appear to converge at an   
      antiradiant below the southern horizon. The shower's apparent radiant   
      (and antiradiant) is just due to perspective though. As Earth sweeps   
      through the dust trail of mysterious asteroid 3200 Phaethon, the dust   
      grains that create the Geminid shower meteors are really moving along   
      parallel tracks. They enter Earth's atmosphere traveling at about 22   
      kilometers per second.   
      
                     Tomorrow's picture: Geminids of the North   
        __________________________________________________________________   
      
          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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