Typhon sector

The Typhon sector is an area of space on the coreward edge of the Federation in the 24th century, beyond which lies the Typhon Expanse. It is within close proximity to the Romulan Star Empire, Sector 221-G and the former Thallonian Empire. The Typhon sector also lies on the so-called Borg vector, the most frequent route of Borgincursions into the Alpha Quadrant. (: '; ; s: ', et. al; )

By the 2370s, Starfleet maintained at least three facilities in or near the sector: Deep Space 4, Deep Space 5 and Starbase 185. (: ; )

In 2373, this sector was the rendezvous point for a Starfleet task force led by Vice Admiral Hayes, and the location of the initial engagement with a Borg cube enroute to Earth. The fleet failed to stop the cube in the sector and fought it all the way to Sector 001.