galactic coordinate system

(redirected from Milky Way's plane)
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galactic coordinate system

n.
A celestial coordinate system in which an object's position on the celestial sphere is defined relative to the plane of the Milky Way galaxy and the two poles formed by a line through the center of the galaxy perpendicular to the plane.
References in periodicals archive ?
Because the pulsars we detect lie in our own galaxy, astronomers often look near the Milky Way's plane when hunting for these zombie stars.
That's why astronomers are excited about the newfound string of stars orbiting above and below the Milky Way's plane.
And the third test offered an explanation for the dispersion of the speeds of stars oscillating around the Milky Way's plane.
At last January's meeting of the American Astronomical Society, astronomers Richard Rees (Westfield State College) and Kyle Cudworth (Yerkes Observatory) proposed that when NGC 6397 plunged through the Milky Way's plane some 5 million years ago it triggered the formation of the open cluster NGC 6231 in neighboring Scorpius.