celestial equator

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Related to celestial equators: celestial poles

celestial equator

n.
A great circle on the celestial sphere in the same plane as the earth's equator. Also called equinoctial, equinoctial circle.

celestial equator

n
(Astronomy) the great circle lying on the celestial sphere, the plane of which is perpendicular to the line joining the north and south celestial poles. Also called: equinoctial or equinoctial circle

celes′tial equa′tor


n.
the great circle of the celestial sphere, lying in the same plane as the earth's equator.
[1870–75]

celestial equator

A great circle on the celestial sphere in the same plane as the Earth's equator.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.celestial equator - the great circle on the celestial sphere midway between the celestial poles
great circle - a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
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