MSGID: 1:153/757.0 abc949c0   
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   CHRS: LATIN-1 2   
                           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 January 25   
      
                               Jyv+ñskyl+ñ in the Sky   
                     Image Credit & Copyright: Harri Kiiskinen   
      
      Explanation: You might not immediately recognize this street map of a   
      neighborhood in Jyv+ñskyl+ñ, Finland, planet Earth. But that's probably   
      because the map was projected into the night sky and captured with an   
      allsky camera on January 16. The temperature recorded on that northern   
      winter night was around minus 20 degrees Celsius. As ice crystals   
      formed in the atmosphere overhead, street lights spilling illumination   
      into the sky above produced visible light pillars, their ethereal   
      appearance due to specular reflections from the fluttering crystals'   
      flat surfaces. Of course, the projected light pillars trace a map of   
      the brightly lit local streets, though reversed right to left in the   
      upward looking camera's view. This light pillar street map was seen to   
      hover for hours in the Jyv+ñskyl+ñ night.   
      
                       Tomorrow's picture: star with planet   
        __________________________________________________________________   
      
          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.   
      
   --- BBBS/Li6 v4.10 Toy-6   
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