The star cluster is located 'below' the plane of the galaxy, specifically under the Jade Empire. It is outside the hyperspace barrier that surrounds the galaxy. In 17 ABY, Jade Empire physicists plotted the interaction between the barrier and the black hole/white fountain pair that is central to the Jade sector. They found a temporary hyperspace tunnel that allowed the JEAF starship Kaloskagathia to reach the cluster. The window would open again six weeks later.