English Dictionary

CELESTIAL EQUATOR

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IPA (US): 

 Dictionary entry overview: What does celestial equator mean? 

CELESTIAL EQUATOR (noun)
  The noun CELESTIAL EQUATOR has 1 sense:

1. the great circle on the celestial sphere midway between the celestial polesplay

  Familiarity information: CELESTIAL EQUATOR used as a noun is very rare.


 Dictionary entry details 


CELESTIAL EQUATOR (noun)


Sense 1

Meaning:

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

Classified under:

Nouns denoting spatial position

Synonyms:

celestial equator; equinoctial; equinoctial circle; equinoctial line

Hypernyms ("celestial equator" is a kind of...):

great circle (a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center)


 Context examples 


The angle between the planes of the celestial equator and the ecliptic, currently the earth has a 23.4 degree obliquity cycle.

(Obliquity, NOAA Paleoclimate Glossary)

Either of two points on the celestial sphere where the celestial equator intersects the ecliptic; either of the two times each year when the sun crosses the equator, and day and night are of equal length (spring equinox, fall equinox).

(Equinox, NOAA Paleoclimate Glossary)



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