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Sunday, April 28, 2013

Sunset at the Grand Canyon

From the south rim of the Grand Canyon in Arizona, a pine tree is silhouetted against the red clouds of sunset.  Sunset is when the trailing edge of the sun goes below the horizon.  Dusk is when the sky becomes completely dark.  The period between sunset and dusk is called twilight.  So technically, I think I took this shot at twilight.

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