galactic coordinate

noun Astronomy.

Usually galactic coordinates. a member of a system of coordinates that define the position of a celestial body with reference to the Milky Way.

Nearby words

galactacrasia, galactagogue, galactan, galactic, galactic cluster, galactic coordinate, galactic coordinate system, galactic equator, galactic halo, galactic latitude, galactic longitude

See also galactic latitude, galactic longitude

Origin of galactic coordinate

First recorded in 1930–35

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019