 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.


 The Sun’s Green Rim Observed from Arroyo de San Serván, Spain

   August 27, 2020

    6a0105371bb32c970b026bde8a8364200c

   Photographer:  Juan Manuel Pérez Rayego
   Summary Authors:  Juan Manuel Pérez Rayego;  Jim Foster

   The photo above showing the  green rim of  the Sun’s trailing rim
   was captured at sunset from Arroyo de San Serván, Spain. As the Sun
   sets, if atmospheric conditions are favorable (relatively clear and not
    optically thick), there’s a chance you might detect an
   emerald-colored lining on the Sun’s upper rim. This occurs because when
   the Sun is near the horizon the  atmosphere can behave like a prism
   and as a result sunlight is separated into different colors. However,
   the green rim is best seen when the Sun is actually a degree or two
   above the horizon.  Note that the  wind turbine silhouetted against
   the Sun’s disk is in Portalegre, Portugal, about 57 miles (92 km) away
   from my location.  Always use caution when looking toward the Sun.
   Photo taken on June 14, 2020.

   Photo Details: DSLR (x1.6) + 400 mm; f / 5.6; 1/1250 sec. exposure; ISO
   100.
     * Arroyo de San Serván, Spain Coordinates:  38.8540, -6.4530

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Atmospheric Effects Links

     *  Atmospheric Optics
     *  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.

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