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.
See also
galactic latitude,
galactic longitude
Origin of galactic coordinate
First recorded in 1930–35
Words nearby galactic coordinate
galactacrasia,
galactagogue,
galactan,
galactic,
galactic cluster,
galactic coordinate,
galactic coordinate system,
galactic equator,
galactic halo,
galactic latitude,
galactic longitude