celestial equator


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Related to celestial equator: celestial poles

celestial equator

n.
A great circle on the celestial sphere in the same plane as the earth's equator. Also called equinoctial, 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.

celestial equator

n
(Astronomy) the great circle lying on the celestial sphere, the plane of which is perpendicular to the line joining the north and south celestial poles. Also called: equinoctial or equinoctial circle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

celes′tial equa′tor


n.
the great circle of the celestial sphere, lying in the same plane as the earth's equator.
[1870–75]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

celestial equator

A great circle on the celestial sphere in the same plane as the Earth's equator.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.celestial equator - 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.
Translations
References in periodicals archive ?
PAGASA noted that the radiant of the meteor shower will virtually lie on the celestial equator and is more favorable to southern hemisphere viewers.
The moment the Sun crosses the celestial equator and equalizes night and day is calculated exactly every year, and families gather together to observe the rituals.
For those of us in the Northern Hemisphere, theSpring Equinoxoccurs when the sun moves north across the celestial equator.
And for those in the Northern Hemisphere, the event only takes place when the sun journeys north across the celestial equator.
"At NESD 2018, for the first time in our history, we will dip within hours of the exact moment the sun crosses the celestial equator. This feels so significant to me."
Spring's arrival coincides with the vernal equinox in the Northern Hemisphere, when the center of the sun's disk crosses the celestial equator south to north.
A stunning piece of art front and back, this incredible piece displays hours, minutes, perpetual calendar, day/night indication, precision moonphase, age of the moon, running equation of time, sunrise and sunset, length of day and night, seasons, solstices, equinoxes and zodiacal signs, tide level indicator, Sun-Earth-Moon conjunction, opposition and quadrature, transparent celestial chart of the Northern Hemisphere with indication of the Milky Way, the ecliptic and the celestial equator, celestial time hours and minutes, tourbillon, 3-week power reserve (using 6 barrels), and power reserve indication.
After the autumnal equinox, Pagasa said 'Philippine nights will be longer as the sun moves below the celestial equator toward the southern hemisphere.'
In the northern hemisphere, the Sun crosses the celestial equator moving southward.
(And no, it's not just the equinox sun crossing the celestial equator.) Head over to any pharmacy or big box store and you can watch it: Scores of adults standing in the greeting card aisle, reading every Mother's Day card on the rack until they find the right one.
But at sunset on March 19th, I observed the last bright spark of sunlight precisely in my "Road Henge" notch --just four hours before the Sun crossed the celestial equator.