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15 July, 21:40

What is a prime meridian and what does it do

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  1. 15 July, 21:48
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    The Prime Meridian is the meridian (line of longitude) that goes through the Royal Observatory, Greenwich in London.
  2. 15 July, 21:49
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    The answer to your question is,

    A prime meridian is a meridian in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its antimeridian form a great circle. This great circle divides the sphere, e. g., Earth, into two hemispheres.

    -Mabel <3
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