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Travel Home > Directory > Travel Dictionary > E > Equator
EQUATOR - An imaginary line on the Earth's surface equidistant from the North Pole and South Pole. It effectively splits the Earth into a Northern Hemisphere and a Southern Hemisphere.
The equator is one of the five main circles of latitude that are based on the relationship between the Earth's axis of rotation and the plane of the Earth's orbit around the sun. It is the only line of latitude which is also a great circle. The imaginary circle obtained when the Earth's equator is projected onto the heavens is called the celestial equator.
