 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.


 Lunar Iridescent Clouds and Saturn

   November 29, 2021

    PSX_20210729_195745

   Photographer:  Soumyadeep Mukjerjee

   Summary Author:  Soumyadeep Mukjerjee;  Cadan Cummings

   A unique combination of astronomy and  atmospheric optics happened
   on July 24th, 2021 when the  Full Moon passed within approximately 4
   degrees of Saturn and  iridescent clouds treated night sky viewers
   to a spectacular display. In the image above,  Saturn is seen toward
   the left of the image through thin clouds. The sky here in  Kolkata,
   India was cloudy at moonrise, which turned out to be a blessing because
   the bright moonlight enabled beautiful rainbow-colored iridescent
   clouds to be visible. Iridescent clouds are a product of
    diffraction caused by similar sized water droplets or ice crystals
   in  mid-altitude clouds that  scatter light. They are mostly seen
   in daytime, so getting a glimpse of iridescent clouds at night is
   considered to be pretty rare. This specific event was especially
   noteworthy due to the variation of colors manifested in the clouds.

   Image Data: Nikon D5600, Laowa 100mm f/2.8 lens, ioptron Skyguider pro,
   ISO 100, 8 second exposure, 100mm, Adobe Camera Raw, Photoshop Express
     * Kolkata, India Coordinates: 22.5726, 88.3639

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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
 
