5 n it doesnt set monday october 22 12 25 this is a

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Unformatted text preview: rn summer) and polar night is experience around the June Solstice (which is southern winter). Anda Bereczky Land of the Midnight Sun Time: Direction: Noon Due South 6 pm Due West Midnight Due North 6 am Due East Path of the Sun on the summer solstice near the Arctic Circle (66.5° N): It doesn’t set! Monday, October 22, 12 25 This is a series of images at a location in Scandinavia north of the Arctic Circle taken around the summer solstice, illustrating the phenomenon known as “midnight sun,” where the sun does not set. Essentially, the Sun is a circumpolar star. Notice the Sun is low in the sky, even on the summer solstice. This is why it is cold in the polar regions, even with the Sun up for 24 hours a day. Key Ideas ‣ What causes the seasons? ‣ ‣ ‣ How does the tilt cause seasons? ‣ ‣ ‣ Due to the tilt of the Earth's axis relative to the plane of its orbit. NOT due to changes in the distance of the Earth from the Sun! Changes the amount of direct sunlight over the year Changes the length of the day over the year How are seasons different around the world? ‣ ‣ The tropics are regions where the Sun can be directly overhead The polar regions are regions where Sun can be circumpolar (i.e. midnight Sun) Monday, October 22, 12 26...
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This note was uploaded on 10/23/2013 for the course ASTR 100 taught by Professor Dunne during the Fall '12 term at University of Illinois, Urbana Champaign.

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