prop. n. [ Ar. al-debarān, fr. dabar to follow; so called because this star follows upon the Pleiades. ] (Astron.) A red star of the first magnitude, situated in the eye of Taurus; the Bull's Eye. It is the bright star in the group called the Hyades. [ 1913 Webster ]

Now when Aldebaran was mounted high
Above the shiny Cassiopeia's chair. Spenser. [ 1913 Webster ]