galactic poles — galactic poles, the two opposite points on the celestial sphere, 90 degrees from the galactic circle … Useful english dictionary
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 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}… … The Collaborative International Dictionary of English
galactic coordinate — In astronomy, a galactic latitude or longitude, useful for describing the relative positions and motions of components of the Milky Way Galaxy. Galactic latitude is measured in degrees north or south of the plane of the Milky Way. Galactic… … Universalium
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 equator — noun : the great circle of the celestial sphere halfway between the galactic poles parallel to and about 1 degree north of the center line of the Milky Way and inclined about 62 degrees to the celestial equator … Useful english dictionary
Galactic cosmic ray — Galactic cosmic rays (GCRs) consist of those cosmic rays that enter the solar system from the outside. They are high energy charged particles composed of protons, electrons, and fully ionized nuclei of light elements. OriginThe magnetic fields of … Wikipedia
Galactic coordinate system — Artist s depiction of the Milky Way galaxy, showing the galactic longitude relative to the sun. The galactic coordinate system (GCS) is a celestial coordinate system which is centered on the Sun and is aligned with the apparent center of the… … Wikipedia
Poles of astronomical bodies — This article is about geographic, magnetic and other poles on planets and other astronomical bodies. For the Earth s poles, see North Pole, South Pole, North Magnetic Pole, and South Magnetic Pole. See also Pole of inaccessibility. The poles of… … Wikipedia
Milky Way Galaxy — Large spiral galaxy (roughly 150,000 light years in diameter) that contains Earth s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky defining the plane of… … Universalium
