The tropics or the equatorial regions, are the geographic region of the Earth centered on the equator (parallel 0) and limited in latitude by the Tropic of Cancer in the northern hemisphere, at approximately 23°26' (23.4°) N latitude, and the Tropic of Capricorn in the southern hemisphere at 23°26' (23.4°) S latitude. This region is also referred to as the tropical zone and the torrid zone.