galactic equator


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.
Also called galactic circle.

Origin of galactic equator

First recorded in 1885–90

British Dictionary definitions for galactic equator

galactic equator

galactic circle


noun

the great circle on the celestial sphere containing the galactic plane