| 单词 | celestial equator |
| 释义 | celestial equatorSEE SYNONYMS FOR celestial equator ON THESAURUS.COM noun Astronomy, Navigation.the great circle of the celestial sphere, lying in the same plane as the earth's equator. Also called equator, equinoctial, equinoctial circle, equinoctial line. Origin of celestial equatorFirst recorded in 1870–75 Words nearby celestial equatorcelesta, Celeste, celestial, Celestial City, Celestial Empire, celestial equator, celestial globe, celestial guidance, celestial hierarchy, celestial horizon, celestial latitude Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for celestial equatorcelestial equator nounthe great circle lying on the celestial sphere the plane of which is perpendicular to the line joining the north and south celestial polesAlso called: equinoctial, equinoctial circle Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for celestial equatorcelestial equator A great circle separating the northern and southern hemispheres of the celestial sphere and lying in the same plane as the Earth's equator. The celestial equator is a projection of the Earth's equator outward onto the celestial sphere and is used as the reference point in determining a celestial body's declination. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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