Subj : ES Picture of the Day 20  2022
To   : All
From : Dan Richter
Date : Tue Dec 20 2022 11:01:18

 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 Green Flash Sequence

   December 20, 2022


    Lorenzo_1668252846638_raggio verde (002)

   Photographer:  Lorenzo Busilacchi

   Summary Authors:  Lorenzo Busilacchi;  Jim Foster

   The photo sequence shows the  green flash phenomenon during
    moonset on May 15, 2022, as observed from Porto Ottiolu, Sardinia,
   Italy. Most of us have heard the color “blue” used to describe the Moon
   but rarely is the color “green” mentioned. Green flashes and  green
   colored rims of the Moon occur because of  atmospheric dispersion –
   near the horizon our eyes detect separate images for red, yellow, and
   green colors. Since green is the topmost color we see, when atmospheric
   conditions are right a burst of green light may be briefly noted as the
   upper rim dips below the horizon.


   Porto Ottiolu, Budoni, Sardinia, Italy Coordinates: 40.7374, 9.7079


Related EPODs

    Lunar Green Flash Sequence  La Palma Pillar  Twinned Rainbow
    Double Cloud Shadow off the Coast of Croatia  Dust Devils on a
   Dry Lakebed  Moondog and Etna Lava Flow
    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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