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

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'celestial equator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of celestial equator

1848, in the meaning defined above

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The first known use of celestial equator was in 1848

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Britannica.com: Encyclopedia article about celestial equator

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