Starbase 173

Starbase 173 is a Federation Starbase in Sector 23, close to the Romulan Neutral Zone. Established in the Mid 24th Century. In 2365, the USS Enterprise (NCC-1701-D) visited this starbase. (TNG: "The Measure of a Man")

The design of Starbase 173 was a re-use of the Regula 1 starbase seen in Star Trek II: The Wrath of Khan