Subj : ES Picture of the Day 22  2022
To   : All
From : Dan Richter
Date : Wed Jun 22 2022 12:01:00

 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.


 Icons of Arizona

   June 22, 2022

    TomMc_CactusSaguaroMoonCaveCreekMarch19.2022#18ajpg (003)

    TomMc_CactusSaguaroMoonCaveCreekMarch19.2022#8e (003)

   Photographer:  Thomas McGuire

   Summary Author:  Thomas McGuire

   The images above combine two iconic symbols of Arizona, the stately
    saguaro cactus and “ The Valley of the Sun,” as the greater
   Phoenix area is often called. Both photos were taken on March 18, 2022,
   at sunset as the full moon was rising.

   Saguaro cacti are endemic to the  Sonoran Desert and are the tallest
   cactus species native to North America –- some specimens are over 50 ft
   (15 m) in height. The word “saguaro” originated in an indigenous
   language spoken by peoples of the Sonoran Desert in what is now Mexico.
   It’s pronounced “sah WAH roh.”

   Taking  sunset or sunrise images with the moon in view is
   challenging. The images featured here required a confluence of
   conditions. My first task was finding a photogenic saguaro cactus on a
   clear eastern horizon. Then I consulted astronomical tables in an
    ephemeris to determine when the Moon would be fullest, as well as
   the precise time and geographic direction of sunset. An added timing
   and positioning consideration is that at this location the land rises
   to the east about 5° above a flat horizon. Of course, a little luck
   with clouds and stray light is also helpful. Note that the 2nd image
   was taken in diminishing light, so it shows significantly more noise
   ( graininess and color error) than the top photo.
     * Cave Creek, Arizona Coordinates: 33.8334, -111.9507

Related EPODs

    Icons of Arizona  Path of the Sun from Two Different Latitudes
    Reflections on the Southern Wasatch Mountains  A Year of
   Sunrises from Taipei, Taiwan  Archive - Soda Dry Lake  Above
   Great Salt Lake: Colors, Contrasts, Arcs, and Angles
    More...

Geography Links

     *  Atlapedia Online
     *  CountryReports
     *  GPS Visualizer
     *  Holt Rinehart Winston World Atlas
     *  Mapping Our World
     *  Perry-Castañeda Library Map Collection
     *  Types of Land
     *  World Mapper

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

https://epod.usra.edu
 
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