Galactic Coordinates


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Related to Galactic Coordinates: Galactic poles, galactic system

galactic coordinates

[gə′lak·tik kō′ȯrd·ən·əts]
(astronomy)

Galactic Coordinates

 

a system of celestial coordinates (galactic latitude and longitude) that determine the position of celestial objects with respect to the plane intersecting the celestial sphere along the great circle nearest to the center line of the Milky Way (the galactic equator). Galactic coordinates are used in stellar astronomy.

References in periodicals archive ?
The galactic coordinate system is one of three that are used for specifying a position on the celestial sphere.
This was dramatically proven during the International Astronomical Union's 1958 Moscow meeting, when new radio maps and plots of blue-white stellar giants and emission nebulae - which tend to congregate at the galactic plane - led the IAU the next year to shift the entire galactic coordinate system by a few degrees.