MSGID: 1:317/3 62a23563   
   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.   
      
      
    Rainbow Flashes   
      
      June 09, 2022   
      
       Rainbow Flahes on Dschubba and Mars   
      
      Photographer:  Dario Giannobile   
      
      Summary Author:  Dario Giannobile   
      
      This photo compilation features an optical effect called  Green   
      Flash for the planet  Mars and star  Dschubba. Green ray is a   
      phenomenon caused by the  refraction of incoming light as it passes   
      through thick layers of the  atmosphere. Shorter wavelengths refract   
      more strongly than longer red wavelengths, and color separation gives a   
      green hue to the last visible ray of our luminous object. Green ray   
      evidence is extremely common on the solar disk but much rarer on the   
       Moon and planets. Even more peculiar is a separation of the light   
      that can lead to the observation of a  blue-tinted flash. A   
      telescope or telephoto lens and camera can help capture this   
      tantalizing result of atmospheric refraction when celestial bodies are   
      close to the horizon. This one-of-a-kind image shows for the first time   
      the phenomenon in its entirety during the rising of the star Dschubba   
      of the constellation   Scorpius  (delta Scorpii). Various flashes   
      have been created around the star that have taken on the tints of the   
      rainbow, shifting from red (in the lower edge of the star) to blue /   
      purple in the upper edge. The same phenomenon happened shortly after   
      during the rising of Mars which presented different flashes and colors   
      mainly of red and green.   
        * Sampieri, Sicily Coordinates: 36.7219, 14.7370   
      
   Related EPODs   
      
       Rainbow Flashes  Solar Halo Above Eastern Slovakia   
       Multicolored Aurora Over Finland  Supernumerary Rainbow Over   
      Modica, Italy  Haleakala Shadow and Belt of Venus  Four Types of   
      Rainbows Over Taiwan   
       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?   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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