Prime meridian is the name of the line that marks 0 degrees of longitude. The prime meridian marks the beginning reference point for making measurements in the eastward and westward directions. Any location along the prime meridian serves as a starting point for measurements, although international consensus designates the city of Greenwich, England as the official prime meridian.Continue Reading
Despite forming a mutual consensus appointing Greenwich as the official prime meridian, governments of countries worldwide historically disagreed on the actual location marking the prime meridian. Any point on the line of 0 degrees longitude qualifies unofficially as a prime meridian. Lack of consensus on a true prime meridian posed problems for cartographers, navigators and city officials.
In 1884, representatives from various countries convened at the Royal Observatory in Greenwich, England. They agreed on forming a standard line of prime meridian; the center ran through the middle of the Royal Observatory, previously a working scientific facility. In addition to marking 0 degrees east and west, the prime meridian establishes Universal Coordinated Time, or UTC. Countries worldwide use UTC to set regional time zones within their borders. Additionally, the prime meridian divides the world, along with the International Date Line, into the Eastern and Western Hemispheres.Learn more about Maps & Cartography
There is no country located 30 degrees south latitude and 60 degrees east longitude. The islands that are nearest to these coordinates are Reunion, a province of France, and the country of Mauritius.Full Answer >
The absolute location of a place is its exact set of coordinates on the planet, frequently expressed in degrees of longitude and latitude. In geography, absolute location is contrasted with relative location.Full Answer >
Zero degrees longitude is known as the Prime Meridian and separates the Eastern and Western Hemispheres. It extends from the North Pole to the South Pole and passes through Greenwich, England. In the Pacific Ocean, at 180 degrees, is the International Date Line, which also separates the hemispheres.Full Answer >
The longitude and latitude on a map are measured in angular units called degrees, minutes and seconds. One degree is equal to 60 minutes and 1 minute is equal to 60 seconds.Full Answer >