Subj : ES Picture of the Day 29  2022
To   : All
From : Dan Richter
Date : Wed Jun 29 2022 12:00:54

 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 Over Torres Vedras, Portugal

   June 29, 2022

    Solar-Halo

   Photographer:  Paulo P. Pereira

   Summary Authors:  Paulo P. Pereira;  Cadan Cummings

   The photo above features a  22-degree solar halo spotted near
    Torres Vedras, Portugal on March 13, 2022. At first glance through
   a window, I saw what looked like an upside-down rainbow. When I went
   outside to photograph it, I realized it was a solar halo.

    Halo phenomena appear when randomly oriented  ice crystals
   composing cirrus clouds reflect and refract incoming sunlight. The name
   of the halo (22 degrees) denotes the angle in which the ice crystals
   bend the incoming light to create this colorful and vibrant circular
   effect. In total, this halo remained visible for over half an hour.

   Photo details: Canon EOS RP, RF 24-105mm, f/13, 1/800 second exposure,
   ISO-100, 24mm
     * Torres Vedras, Lisboa, Portugal Coordinates: 39.0918, -9.2600

Related EPODs

    Solar Halo Over Torres Vedras, Portugal  Glory Observed Above
   Sicily, Italy  Rainbow Flashes  Solar Halo Above Eastern Slovakia
    Multicolored Aurora Over Finland  Supernumerary Rainbow Over
   Modica, Italy
    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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