Aldebaran

Alpha (α) Taurus, Aldebaran, is a pale rose star marking the right eye of the Bull (the star Ain, or epsilon (ε), marks the left eye).Alderbaran is the Greek Omma Boos, Latin Oculus Tauri, and the early English Bull's Eye. Bull's-eye is what we call "the centre of a target, which usually carries the highest score", and "a precise or highly effective achievement"

The great red giant, war-like Aldebaran is one of the Four Royal Stars or Guardians of Heaven, sentinels watching over other stars. It forms one of the four royal stars of Persia as Watcher of the East.