ecliptic

Noun
  1. The great circle representing the apparent annual path of the sun;
    The plane of the Earth's orbit around the sun;
    Makes an angle of about 23 degrees with the equator (synset 108582743)
    "all of the planets rotate the sun in approximately the same ecliptic"
    is a type of: great circle - a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center

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