Meridian Coordinates //top\\

Because the Earth is a sphere, meridian coordinates are measured in angles rather than linear distances. There are three primary formats used to express these coordinates in modern mapping: Degrees, Minutes, and Seconds (DMS)

On , the International Meridian Conference in Washington, D.C., brought together 41 delegates from 26 nations. They voted to adopt the meridian passing through the Airy Transit Circle at the Royal Observatory in Greenwich, England , as the world's official prime meridian . At the time, over two-thirds of the world's shipping already used Greenwich charts, making it a practical and economic choice . The vote was 22-1 in favor, with France and Brazil abstaining . meridian coordinates

In astrology, meridians are fundamental to the , which divides the astrological chart into twelve segments or "houses," each representing different areas of life (e.g., self, relationships, career). The meridian is a great circle that passes through the celestial poles and the observer's zenith and nadir. Because the Earth is a sphere, meridian coordinates