The seven important lines of latitude are the equator at 0 degrees, Tropic of Capricorn at 23.5 degrees south, Tropic of Cancer at 23.5 degrees north, Antarctic Circle at 66.5 degrees south, Arctic Circle at 66.5 degrees north, South Pole at 90 degrees south and North Pole at 90 degrees north. Latitude is an imaginary line that encircles the planet and runs parallel to the equator.
Latitude is shown on a map as a line that stretches in an east to west direction. It refers to the angular distance of a particular point of reference, either north or south of the equator. Lines of latitude vary in length. The equator is around 24,901 miles long, while the Antarctic Circle is approximately 10,975 miles long.