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celestial equator

noun

Definition of celestial equator

: the great circle on the celestial sphere midway between the celestial poles

Examples of celestial equator in a Sentence

Recent Examples on the Web

 During the equinox, the sun crosses the Earth's celestial equator, an imaginary line that stretches from the north to the south. — Leada Gore, AL.com, "First day of fall 2017: Autumnal Equinox is today; what to know," 22 Sep. 2017

First Known Use of celestial equator

1848, in the meaning defined above

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