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Equator (astronomy) definition of Equator (astronomy) in the Free ...
celestial equator: see equatorial coordinate system equatorial coordinate system, the most commonly used astronomical coordinate system for indicating the positions of stars or ...
Equator (astronomy) - Search Results - MSN Encarta
The equatorial coordinate system is a coordinate system fixed on the sky. In this system, a star keeps the same coordinates no matter what the time...
Equator (astronomy) - MSN Encarta
Equator astronomy, in astronomy, the great circle in which the plane of the equator of the earth intersects the celestial sphere. The celestial...

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Equator (astronomy)

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Equator (astronomy), in astronomy, the great circle in which the plane of the equator of the earth intersects the celestial sphere. The celestial equator is the line from which the declination of stars and planets is measured. See Ecliptic.

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