Subj : ES Picture of the Day 25  2022
To   : All
From : Dan Richter
Date : Fri Mar 25 2022 12:00:56

 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.


 Airglow Over Dark Sky Park Poloniny

   March 25, 2022

    Airglow_BlastSMALLer

   Photographer:  Tomas Slovinsky

   Summary Authors:  Tomas Slovinsky;  Cadan Cummings

   During my trip to the darkest place in Slovakia,  Dark Sky Park
   Poloniny, I witnessed the most vibrant  airglow I have ever
   observed. Airglow occurs when either ultraviolet light from the Sun
    excites electrons of upper atmosphere gases or the molecules are
   ionized and later recombine to produce a free electron. This phenomenon
   is the reason why the night sky is continuously blanked in a faint
   light. Although present throughout the year and around the world,
   airglow is best visible in dark locations where  light pollution is
   minimal.

   At the beginning of the  night, the sky was completely dark.
   However, right before the end of the astronomical night, the brightness
   of the sky dramatically increased to the point that it even lit the
   foreground. I had one guess about what was happening, but I wanted to
   be sure and took this picture. When I pointed the camera towards the
   sky, I was truly excited about the nice colors and structures.
   Coincidentally, there is an airglow-monitoring program at the
    Kolonica Observatory called  AMON-ES (Airglow MONitoring -
   Extended Station). It's clear that under the dark night sky, the real
   gems are revealed.
     * Dark Sky Park Poloniny, Slovakia Coordinates: 49.054, 22.409

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Night Sky Links

     *  Space Weather Live
     *  Space Weather Live Forum
     *  About the Moon
     *  American Meteor Society
     *  Arbeitskreises Meteore e.V.
     *  Global City Lights
     *  Heavens Above Home Page
     *  The International Meteor Organization
     *  Lunar and Planetary Institute
     *  MoonConnection
     *  NASA Eclipse Web Page
     *  Understanding The Moon Phases

-
   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
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