LONGITUDE

Longitude

Longitude, is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda . Points with the same longitude lie in lines running from the North Pole to the South Pole. By convention, one of these, the Prime Meridian, which passes through the Royal Observatory, Greenwich, England, was intended to establish the position of zero degrees longitude. The longitude of other places was to be measured as the angle east or west from the Prime Meridian, ranging from 0° at the Prime Meridian to +180° eastward and −180° westward. Specifically, ...

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longitude

Noun

  1. Angular distance measured west or east of the prime meridian.
  2. Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole.
  3. Length.


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

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