galactic equator

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noun Astronomy.

the great circle on the celestial sphere that is equidistant from the galactic poles, being inclined approximately 62° to the celestial equator and lying about one degree north of the center line of the Milky Way.

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Also called galactic circle.

Origin of galactic equator

First recorded in 1885–90

Words nearby galactic equator

galactan, galactic, galactic cluster, galactic coordinate, galactic coordinate system, galactic equator, galactic halo, galactic latitude, galactic longitude, galactic nebula, galactic noise

British Dictionary definitions for galactic equator

galactic equator

galactic circle

noun

the great circle on the celestial sphere containing the galactic plane

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