Galactic-longitude
noun, Astronomy.
1.
the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius.
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galactic nucleus The center of a galaxy, usually small, very bright, and containing a high density of stars and other objects. ◇ An active galactic nucleus is a nucleus that emits more radiation than can be explained in terms of stars alone. Blazars and quasars are thought to be active galactic nuclei; the nuclei of […]
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/ɡəˈlæktɪˌkəʊ/ noun 1. (informal) a famous and highly paid footballer
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noun, Astronomy. 1. the plane of the galactic equator. noun 1. the plane passing through the spiral arms of the Galaxy