Hadar

Hadar is a star system in Klingon Empire space, located somewhere in the galaxy's Alpha or Beta Quadrants.

History and specifics
Hadar was the location of a planetary system in orbit, including fourth planet Hadar IV. 

System makeup

 * Hadar system primary star
 * Hadar I
 * Hadar II
 * Hadar III
 * Hadar IV