Subj : ES Picture of the Day 24  2022
To   : All
From : Dan Richter
Date : Thu Mar 24 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.


 Moondogs and Paraselenic Arc

   March 24, 2022


    MatthewC_moon-photo (003)

   Photographer:  Matthew Chin
   Summary Author:  Matthew Chin;  Jim Foster
   The photo above show the evening sky and the Moon as viewed from Yuen
   Long, Hong Kong on December 17, 2021. Faintly colored arcs in the
   vicinity of the Moon are annotated. Though it’s not unusual to be able
   to see a  22-degree lunar halo, observing  moondogs (on both
   sides of the Moon) and the  paraselenic circle is much more
   challenging. The Moon must be  bright, near the full phase, in order
   to detect these dim arcs. Note that the  paraselenic arc passes
   through the center of the lunar disk and circles around the sky ---
   best seen with a fisheye lens. The bright streak at upper is a jet
    contrail.
     * Yuen Long, Hong Kong Coordinates: 22.4445, 114.0222

Related EPODs

    Moondogs and Paraselenic Arc  Crepuscular Rays in the
   Philippines and Rainbow Wheel Over Belgium  Snow Halo Over Mala
   Fatra Mountains  Atmospheric Optics Observed in Fog  Archive -
   Picket Fence Aurora  Inferior Mirage In Venetian Lagoon
    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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