celestial pole


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celestial pole

n.
Either of two diametrically opposite points at which imaginary extensions of the earth's rotational axis intersect the celestial sphere.
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 pole

n
(Astronomy) either of the two points at which the earth's axis, extended to infinity, would intersect the celestial sphere. Sometimes shortened to: pole
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

celes′tial pole′


n.
each of the two points in which the extended axis of the earth cuts the celestial sphere and about which the stars seem to revolve.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

celestial pole

Either of the points at which the extensions of the Earth's axis intersect the celestial sphere.
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 pole - one of two points of intersection of the Earth's axis and the celestial sphere
celestial point - a point in the heavens (on the celestial sphere)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In our most recent paper (Vondrak and Ron, 2017) we proposed a new method of determining the parameters (period T, Q-factor) of Free Core Nutation that is not part of the IAU 2000 model of nutation, and therefore present in observed celestial pole offsets (CPO).
The south celestial pole can be found midway along the line joining Crux to Achernar.
The top edge of the gnomon (the pointy bit) needs to be aligned with the celestial pole for either type, so it's parallel to the Earth's axis.
Polaris is an averagelooking star which just happens to appear close in the sky to the north celestial pole.
Pole to celestial pole, through wind like desert sand, an adamantine
3, in which the gnomon is once again pointing to the South Celestial pole, whose shadow is cast onto a plane inclined at 15 [degrees] to the horizon.
Immediately above the celestial pole is the faint constellation of Camelopardalus which, despite being the eighteenth largest by area in the sky, contains no stars brighter than fourth magnitude.
To compensate for your local latitude, your sundial's pointer, or gnomon, that casts the shadow on the hour marks should point towards the celestial pole (the north celestial pole if you're in the Northern Hemisphere, the south celestial pole if you're in the Southern Hemisphere).
This brings you close to Polaris, located just 2/3[degrees] from the north celestial pole. The constellations in the northern sky wheel around and around this point.
Like our counterparts in the southern hemisphere, we were driven to observe near the celestial pole; in our case, the North Celestial Pole (NCP) was the only part of the northern hemisphere sky available for round-the-clock observations.
For those of us living in the middle latitudes of Europe and North America, the lens of choice should be a wide-angle--24-35 millimetres--which will provide enough coverage in the frame to include the celestial pole as well as the horizon with its landform silhouetted against the sky.
If you draw an imaginary line from Achernar to the Southern Cross, then the South Celestial Pole lies at about halfway along this line.