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Related to equinoctial colure: solstitial colure
equinoctial colureSee colures.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
the great circle on the celestial sphere which passes through the celestial poles and the vernal and autumnal equinoxes.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
equinoctial colure[‚ē·kwə′näk·shəl kə′lu̇r]
The great circle of the celestial sphere through the celestial poles and the equinoxes; the hour circle of the vernal equinox.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
vernal equinox. It is an imaginary point among the stars where the sun apparently crosses the equator from south to north on or about March 20 through 23 of each year. Also called a vernal equinox or a spring equinox.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved