- a first-magnitude star, orange in color, in the constellation Taurus.
- a binary star, one component of which is a red giant, the brightest star in the constellation Taurus. It appears in the sky close to the star cluster Hyades. Visual magnitude: 0.85; spectral type: K5III; distance: 65 light years
bright star in Taurus, late 14c., from Arabic Al Dabaran “the follower” (of the Pleiades, which rise shortly before it does), from dabara “he followed.”
- A red giant star in the constellation Taurus. Aldebaran is the thirteenth brightest star in the sky, with an apparent magnitude of 0.85. Scientific name: Alpha Tauri.