MSGID: 1:317/3 629e40d1   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    Solar Halo Above Eastern Slovakia   
      
      June 06, 2022   
      
      
       DSC_0053   
      
      Photographer:   Róbert Hlava   
      
      Summary Authors:  Róbert Hlava;  Jim Foster   
      
      Shown above is an eye-catching  22-degree solar halo and  glitter   
      path that I observed over eastern Slovakia on the morning of January   
      18, 2020. Halos such as this one may result when  hexagonal ice   
      crystals, either in  cirrus clouds or freely falling through the   
      lower atmosphere ( diamond dust), act like miniature prisms,   
      refracting and dispersing sunlight. If the axis of a pencil-shaped   
      crystal is approximately perpendicular to the direction of sunlight, a   
      ray of sunlight will pass through two of the  crystal’s side faces   
      and be refracted roughly 22 degrees. Millions of these more-or-less   
      randomly oriented crystals form circular halos.   
      
      I was ecstatic to be able to witness both the atmospheric halo and the   
      glitter path on the ice-covered lake. Nature always seems to offer new   
      surprises for us.  Make sure to protect your eyes when looking   
      toward the Sun.   
      
      Photo details: Nikon D5300 camera; 11mm; F13; 1/250 second exposure;   
      ISO 100.   
        * Rožkovianský rybník, Sabinov Slovakia Coordinates:   
          49.106111, 21.085556   
      
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       More...   
      
   Atmospheric Effects Links   
      
        *  Atmospheric Optics   
        *  Optic Picture of Day: Gruppo Astrofili Galileo Galilei   
        *  Color and Light in Nature   
        *  The Colors of Twillight and Sunset   
        *  Refraction Index   
        *  Image Gallery: Atmospheric Effects   
        *  What is a Rainbow?   
      
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      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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