The Equator passes through three of the seven continents: South America, Africa and Asia. An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the North Pole and the South Pole, at 0 degrees latitude. An equator divides the planet into a Northern Hemisphere and a Southern Hemisphere.
When the Sun is directly above the Earth’s Equator (on the equinoxes of approximately March 20 and September 23), sunlight shines perpendicular to the Earth’s axis of rotation, and all latitudes have a 12-hour day and 12-hour night. On and near the Equator sunlight comes from almost directly above every day year-round, and thus the Equator has a rather stable daytime temperature the whole year.
Locations on the equator experience the shortest sunrises and sunsets because the Sun’s daily path is nearly perpendicular to the horizon for most of the year. The length of daylight (sunrise to sunset) is almost constant throughout the year; it is about 14 minutes longer than nighttime due to atmospheric refraction and the fact that sunrise begins (or sunset ends) as the upper limb, not the center, of the Sun’s disk contacts the horizon.
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