Definition of Alkaid
astronomy
: a bluish-white star of the second magnitude that marks the end of the handle of the Big Dipper Next, I targeted NGC 5448, a … spiral located just east of the bright star Alkaid at the tail of Ursa Major, close to the Bootes border. — William A. McLaughlin, Astronomy, February 1997 —called also Eta Ursae Majoris
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1675
First Known Use of alkaid
1675
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