The Midnight Sun
The midnight Sun shines over Lake Colleen at Deadhorse (Prudhoe
Bay), Alaska, on July 7, 2007. The Sun is still so far north that
it stays up for 24 hours a day, which is possible only above the
Arctic Circle. It will finally set later in the month as it moves to
the south. A latitude here of 70.2 degreees north gives an actual
solar (center) elevation of 2.8 degrees, which is raised to 2.9
degrees by atmospheric refraction.
Copyright © J. B. Kaler.