Sigma Librae (also known as Zubenhakrabi, 20 Librae or Gamma Scorpii) was a star system, located in the space of the galaxy's Beta Quadrant. Sigma Librae is a spectral class K orange giant without notable permanent inhabitantion. This star is visible from Sol, 288 light-years distant, in the constellation of Libra. (ST reference: Star Charts) The Zubenhakrabi system's orbit was the location of a planetary system. (ST video game: Starfleet Command III)