EQUATOR

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and midway between the poles. The Equator usually refers to the Earth's equator: an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. Other planets and astronomical bodies have equators similarly defined. The Equator is about long; 78.7% is across water and 21.3% is over land.

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equator

Noun

  1. An imaginary great circle around the Earth, equidistant from the two poles, and dividing earth's surface into the northern and southern hemisphere.
  2. A similar great circle on any sphere, especially on a celestial body, or on other reasonably symmetrical three-dimensional body.
  3. A short form of the celestial equator.


The above text is a snippet from Wiktionary: equator
and as such is available under the Creative Commons Attribution/Share-Alike License.

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