Hyralan sector

From Memory Alpha, the free Star Trek reference

The Hyralan sector is a sector located in Federation space.

In 2370, this sector was the rendezvous point for the mercenary ship commanded by Arctus Baran and the Klingon Toron-class shuttle of Koral. However, the USS Enterprise-D intercepted Koral's shuttle before Baran arrived. (TNG: "Gambit, Part II")