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  1. Oxford Dictionary

    celestial equator

    • n.
      the projection into space of the earth's equator; an imaginary circle equidistant from the celestial poles.

    • noun: celestial equator, plural noun: celestial equators

    • 更多解釋

    celestial equator

    • IPA[səˈlesCHəl]
    • n.
      the projection into space of the earth's equator; an imaginary circle equidistant from the ...

    Oxford American Dictionary