Rai

Rai is a star system in the Klingon Empire, located somewhere in the galaxy's Alpha or Beta Quadrants. Rai was the location of a planetary system of at least five worlds, including a fifth planet, Rai V. 

System

 * Rai system primary:
 * Rai I
 * Rai II
 * Rai III
 * Rai IV
 * Rai V