Dictionary Home »
Dictionary Definitions » Polaris
Polaris
noun
a binary Cepheid variable, the brightest star in the constellation Ursa Minor; North Star; Pole Star: magnitude, 1.95 to 2.05: used for navigation, since it is the closest star to the north celestial pole and remains nearly stationary throughout the night
See Polaris in American Heritage Dictionary 4
Learn more about Polaris
Related Articles
link/cite print suggestion box