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equinoctial circle

 - 4 dictionary results

celestial equator

 
–noun Astronomy, Navigation.
the great circle of the celestial sphere, lying in the same plane as the earth's equator.
Also called equator, equinoctial, equinoctial circle, equinoctial line.

Origin:
1870–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To equinoctial circle
celestial equator  
n.  A great circle on the celestial sphere in the same plane as the earth's equator. Also called equinoctial, equinoctial circle.
equinoctial circle  
n.  See celestial equator.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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