Astron. any great circle of the celestial sphere which passes through the celestial poles and is therefore perpendicular to the celestial equator
hour circle
hour circleWebster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"hour circle." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/hour-circle>.
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hour circle. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/hour-circle
hour circle
noun
A great circle passing through the poles of the celestial sphere and intersecting the celestial equator at right angles.
THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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MLA Style
"hour circle." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/hour-circle>.
APA Style
hour circle. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/hour-circle
A great circle passing through the poles of the celestial sphere and intersecting the celestial equator at right angles. An hour circle is equivalent to a meridian on Earth and is used in describing the position of a celestial body with respect to an observer's celestial meridian.
See more at hour angle
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Cite this page
MLA Style
"hour circle." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/hour-circle>.
APA Style
hour circle. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/hour-circle
