How are the locations of the Arctic and Antarctic circles alike?
The Arctic and Antarctic Circles are each the same distance from their respective poles. Depending on the nearness of the poles, periods of continuous day or night vary from one day to six months at locations inside the circles. The circles are imaginary parallels of latitude on the surface of the earth at 66°30′ south and north of their respective poles. They mark the southern and northern limits of the areas in which the sun does or does not rise and set on the winter and summer solstices.
