galactic plane
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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 plane — /gəˌlæktɪk ˈpleɪn/ (say guh.laktik playn) noun the plane of the galactic circle …
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
Galactic North — This article is about the book. For the celestial direction, see Galactic coordinate system. Galactic North … Wikipedia
galactic latitude — noun : latitude in the system of galactic coordinates measured as distance north or south of the galactic equator * * * Astron. the angular distance from the galactic equator of a point on the celestial sphere. [1905 10] * * * galactic latitude,… … Useful english dictionary
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 longitude — Astron. the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius. [1910 15] * * * … Universalium
Galactic astronomy — is the study of our own Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything outside our galaxy, including all other galaxies.Galactic astronomy is that branch of astronomy which… … Wikipedia
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 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
