Aldebaran

Aldebaran , brightest star in the constellation Taurus ; Bayer designation α Tauri; 1992 position R.A. 4 ^h 35.5 ^m , Dec. +16°30′. An orange giant star ( spectral class K5 III) with apparent magnitude averaging 0.85, it is one of the 20 brightest stars in the sky. Aldebaran is a visual binary star and an irregular variable star , with magnitude ranging from 0.78 to 0.93. Its distance is 68 light-years. The name is from the Arabic meaning "follower (of the Pleiades)."

Aldebaran The star Alpha Tauri. It is a K5 giant that varies irregularly by about 0.1 mag. from its average brightness of magnitude 0.87. It appears to be a member of the Hyades star cluster but is in fact only 65 l.y. away, less than half the cluster's distance.

Taurus (abbr. Tau, gen. Tauri) A constellation of the zodiac, representing a bull. The Sun passes through Taurus from mid-May to the third week of June. Its brightest star is Aldebaran (Alpha Tauri). Beta Tauri is Alnath. The constellation contains two large, bright open clusters, the Hyades and the Pleiades. Theta Tauri is a wide double in the Hyades, magnitudes 3.4 and 3.8. Within Hind's Variable Nebula lies T Tauri, the prototype of a class of young variable stars. M1 is the famous Crab Nebula, a supernova remnant. The Taurid meteors radiate from the constellation from late October to the end of November every year.