 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.


 Triangular Shadow Cast on the Strait of Messina

   June 23, 2021

    IMG_1508-Pano-2-Modifica-Modifica-2

   Photographer:  Fabio Di Stefano

   Summary Author:  Fabio Di Stefano &  Cadan Cummings

   This astonishing view from atop  Mount Dinnammare overlooks the city
   of  Messina, Italy, located on the eastern edge of the island of
    Sicily. Separating mainland Italy and Sicily, the 3.2 mi (5.1 km)
   wide  Strait of Messina seen at the base of the mountain connects
   the  Tyrrhenian Sea and  Ionian Sea. This photograph taken at
   sunset on August 7, 2018, adds extra dimension to the picturesque
   landscape from Mount Dinnammare casting what appears to be a triangular
   shadow over the strait. This shadow is due to  Sun angle on the
   horizon and  perspective exaggerating the shape cast from the rugged
   landscape on the comparably flat landscape below. Note that shadows
   such as this are only observed when the Sun is low in the sky and an
   abundance of dust is present in the atmosphere. The airborne dust
   outside of the shadow acts to  scatter sunlight, but inside of the
   shadow scattered sunlight is absent. Even mountains that have flat tops
   when projected in this manner appear to have triangular shadows.

   Photo Details: Overview of two shots taken with a Canon EOS M6 and a
   Tokina 11-6mm f / 2.8 IF DX lens. ISO 200, f / 8, 1/80 " exposure, 11mm
   focal length.
     * Mount Dinnammare, Messina, Italy:  38.160249, 15.464369

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Sun Links

     *  NASA Solar Dynamics Observatory
     *  NASA Solar Eclipse Page
     *  NOAA Solar Calculator
     *  The Sun-Earth Connection: Heliophysics
     *  The Sunspot Cycle
     *  Solar System Exploration: The Sun
     *  The Sun Now
     *  This Week’s Sky

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

https://epod.usra.edu
 
