Galactic circle

Galactic circle
Galactic Ga*lac"tic, a. [Gr. ? milky, fr. ?, ?, milk. See {Galaxy}, and cf. {Lactic}.] 1. Of or pertaining to milk; got from milk; as, galactic acid. [1913 Webster]

2. Of or pertaining to the galaxy or Milky Way. [1913 Webster]

{Galactic circle} (Astron.), the great circle of the heavens, to which the course of the galaxy most nearly conforms. --Herschel.

{Galactic poles}, the poles of the galactic circle. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • galactic circle — galactic circle, the great circle inclined at an angle of 62 degrees to the celestial equator, whose plane nearly coincides with the central line of the Milky Way …   Useful english dictionary

  • galactic circle — /gəˌlæktɪk ˈsɜkəl/ (say guh.laktik serkuhl) noun the great circle of the celestial sphere which most nearly coincides with the middle of the Milky Way. Also, galactic equator …  

  • Galactic — Ga*lac tic, a. [Gr. ? milky, fr. ?, ?, milk. See {Galaxy}, and cf. {Lactic}.] 1. Of or pertaining to milk; got from milk; as, galactic acid. [1913 Webster] 2. Of or pertaining to the galaxy or Milky Way. [1913 Webster] {Galactic circle} (Astron.) …   The Collaborative International Dictionary of English

  • Galactic poles — Galactic Ga*lac tic, a. [Gr. ? milky, fr. ?, ?, milk. See {Galaxy}, and cf. {Lactic}.] 1. Of or pertaining to milk; got from milk; as, galactic acid. [1913 Webster] 2. Of or pertaining to the galaxy or Milky Way. [1913 Webster] {Galactic circle}… …   The Collaborative International Dictionary of English

  • galactic poles — galactic poles, the two opposite points on the celestial sphere, 90 degrees from the galactic circle …   Useful english dictionary

  • galactic equator — Astron. 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… …   Universalium

  • galactic longitude — noun : longitude in the system of galactic coordinates measured in degrees eastward from the point where the galactic equator crosses the celestial equator in the constellation Aquila * * * Astron. the angular distance in degrees measured… …   Useful english dictionary

  • galactic plane — Astron. the plane of the galactic equator. [1840 50] * * * galactic plane noun The plane that passes through the centre of the bulging disc formed by the spiral arms of the Galaxy • • • Main Entry: ↑galaxy * * * galactic plane, the plane of the… …   Useful english dictionary

  • galactic equator — /gəˌlæktɪk əˈkweɪtə/ (say guh.laktik uh kwaytuh) noun → galactic circle …  

  • galactic plane — /gəˌlæktɪk ˈpleɪn/ (say guh.laktik playn) noun the plane of the galactic circle …  

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