Artic Circle and Light
Name: Gina Chapman
My daughter would like to know the reason Alaska has 6
months of dark and 6 months of light?
Not quite true. In the portion of Alaska north of the arctic circle there
is at lease one day of the year when the sun does not technically rise and
one day when it does not technically set. Technically because there is
still twilight. The farther north you go, the larger the number of days of
all sunlight or all darkness.
The reason for this is what is called the seasonal tilt of the earth. It
tilts 23.5 degrees. This tilt is directly toward the sun on the summer
solstice and directly away on the winter solstice.
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Update: June 2012