Starbase 173

Starbase 173 was a newly built Federation Starbase in Sector 23, close to the Romulan Neutral Zone, in 2365. It was under the command of Sector Commander, Vice Admiral Nakamura. Captain Phillipa Louvois was assigned to the base as the sector's Judge Advocate General.

That year, the USS Enterprise-D visited Starbase 173. (TNG: "The Measure of a Man")

Ensign Sonya Gomez transferred from Starbase 173 to the Enterprise-D to serve in Engineering. (TNG: "Q Who?")

The design of Starbase 173 was an upscaled re-use of the Regula I station seen in Star Trek II: The Wrath of Khan.