equinoctial circle


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equinoctial circle

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

equinoctial circle

or

equinoctial line

n
(Astronomy) another name for celestial equator
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.equinoctial circle - 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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
As stated in Almagest III, 1, Ptolemy had "one" equinoctial circle in the square stoa and some in the Palaestra.
The city of Christianopolis is given impossible geographical coordinates with the "Academic Sea" ("in the Antarctic zone, 10 [degrees] of the south pole, 20 [degrees] of the equinoctial circle, and about 12 [degrees] under the point of the bull") to render it a utopia or nowhere-land.(61) The narrator is a pilgrim who, "suffering much in patience from tyranny, sophistry, and hypocrisy," embarks in a ship named Phantasy and is shipwrecked on the triangular island of Caphar Salama.