"Dog Star." YourDictionary, n.d. Web. 14 October 2018. <http://www.yourdictionary.com/dog-star>.
Dog Star. (n.d.). Retrieved October 14th, 2018, from http://www.yourdictionary.com/dog-star
(astronomy) A bluish-whitestar in the constellation Canis Major; Alpha (α) Canis Majoris. A vertex of the Winter Triangle and the brightest star in the night sky. It is actually a binary star with a white dwarf companion star.
From the fact that the star lies in the constellation of Canis Major (the "larger dog")
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