WGS1984 projection world map differs from the others in that it contains the main horizontal circles, such as
Arctic Circle (66°33′49.2″ N)
Tropic of Cancer (23°26′10.8″ N)
Equator (0° latitude)
Tropic of Capricorn (23°26′10.8″ S)
Antarctic Circle (66°33′49.2″ S)

Tropic of Cancer A line of latitude located at 23.440N. The general dividing line in the northern hemisphere between the tropics to the south and
the mid-latitudes to the north.
Tropic of Capricorn A line of latitude located at 23.44°S. The general dividing line in the southern hemisphere between the tropics to the north
and the mid-latitudes to the south

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