facts about what is the equator
1 Notably, the Equator refers to the Earth âs equator, per above: an imaginary line on the Earth âs surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. The Equator is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn. 2  The imaginary circle obtained when the Earth âs equator is projected onto the sky is called the celestial equator.