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| GRAND CANYON SUNSET |
What is the difference between Sunset, Civil Twilight, Nautical Twilight and Astronomical Twilight?
SUNSET is when the sun touches the horizon.
CIVIL TWILIGHT is when the sun is 6 degrees below the horizon.
NAUTICAL TWILIGHT is when the sun is 12 degrees below the horizon.
ASTRONOMICAL TWILIGHT is when the sun is 18 degrees below the horizon.
