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- Galactic
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Words related to galactic
ga·lac·tic
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galactic equator
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. -
galactic latitude
the angular distance from the galactic equator of a point on the celestial sphere. -
galactic longitude
the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius. -
galactic plane
the plane of the galactic equator. -
globular cluster
a comparatively older, spherically symmetrical, compact group of up to a million old stars, held together by mutual gravitation, that are located in the galactic halo and move in giant and highly eccentric orbits around the galactic center.