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CELESTIAL EQUATOR
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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 poles
Familiarity information: CELESTIAL EQUATOR used as a noun is very rare.
Dictionary entry details
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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