Colure, in astronomy, is either of the two principal meridians of the celestial sphere. ==Equinoctial colure== The equinoctial colure is the meridian of the celestial sphere which passes through the celestial poles and the two equinoxes: the first point of Aries and the first point of Libra. ==Solstitial colure== The solstitial colure is the merid...
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celestial circle that intersects another at the poles
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• (n.) One of two great circles intersecting at right angles in the poles of the equator. One of them passes through the equinoctial points, and hence is denominated the equinoctial colure; the other intersects the equator at the distance of 90
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A great circle that passes through the celestial poles and meets the ecliptic at either the solstice points (the solstitial colure) or the equinox points (the equinoctial colure).
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Co·lure' noun ;
plural Colures . [ French
colure , Latin
coluri , plural, from Greek
ko`loyros dock-tailed,
a'i ko`loyroi (sc.
grammai` lines) the colures; from
ko`los docked, stunted +
o'yra` tail. So named because...
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In atronomy, a colure is one of two great circles which divide the ecliptic into four equal parts. One passes through the solstitial and the other through the equinoctial points of the ecliptic.
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either of two great circles of the celestial sphere intersecting each other at the poles, one passing through both equinoxes and the other through both solstices.
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