Trekipedia

Starbase 10

A space station located near Gamma Hydra IV, Starbase 10’s most important duty was to monitor the activities of the Romulan Empire near the Neutral Zone.^[3] The original strategic base defending the Neutral Zone against Romulan incursion, Starbase 10 was screened and supported by the critical Gamma Hydra cluster.^[4] Between its construction in the 2170s to 2266, it slowly became a scientific support base as well; following the Romulan incursions in the later 23rd century, it added a state-of-the-art medical facility in case of war.^{[3, 4]} Like Starbase 173, it remained at heightened alert status,^[4] and thus lacked the relaxed atmosphere of more secure starbases; everyone was constantly on edge, wondering just who might be an impostor working for Romulan intelligence.^[3]

Starbase 10, which was the destination of the U.S.S. Enterprise NCC-1701 after leaving Deneva in 2266,^[1] was originally slated to become the command of Commodore Stocker in 2267, but after his rash actions aboard the Enterprise disgraced him,^[2] command passed instead to Commodore Gerald Williams.^[3]

Starbase 6

A space station located past Aldebaran, Starbase 6 was famous for providing the finest amenities for rest and relaxation of any Starfleet facility, ^[2], a reputation that dated back as far as the 2250s, when a Tiburonian–Centauran team redesigned it from the hub out.^[3] Run by Tiburonian civilians, the base offered a surprising array of recreational activities. Regular athletic tournaments attracted competitors from throughout the Federation, and no visiting flag officer in the 2260s could imagine drinking in the Crystal Bar without the station’s commanding officer, Commander George Reed, at their side.^[2] In peacetime, starships diverted from sectors around to enjoy its facilities, which included state-of-the-art holodecks, null-G saunas, and the most sophisticated replicators (and chefs) within a thousand parsecs of Aldebaran.^[3]

The U.S.S. Enterprise NCC-1701 was diverted from scheduled R&R at Starbase 6 in 2267. Responding to an emergency call from Starfleet Command, the Enterprise traveled to Sector 39J to investigate the disappearance of the U.S.S. Intrepid NCC-1631.^[1]

Starbase 4

Initially contructed in the late 22nd century to support Federation colonization efforts,^[4] Starbase 4 eventually became an administrative center for the Lyris Corridor^{[3, 4]} between Tellar and Deneb.^[4] Commanded by Commodore Jack Kerr in the 2260s, Starbase 4 housed a large administrative unit of the Federation’s department of colonial management, as well as temporary housing for up to two hundred thousand people in readiness for emergencies requiring mass evacuation. A civilian court at the starbase also administered justice for colonies too new to have established their own justice systems.^[3]

In late 2267, the U.S.S. Enterprise NCC-1701 dropped off several children rescued from the doomed Starnes Expedition to Triacus at Starbase 4.^[1] Several months later, in early 2268, a shuttlecraft was stolen from Starbase 4 by Lokai, and was recovered two weeks later by the Enterprise.^[2]

During the Federation’s great expansion into the Alpha Quadrant during the early 24th century, Starbase 4 became a test-bed for terraforming and replicator technology. It has temporary quarters with full life support for over a quarter of a million people (one of the largest orbital settlements in the Federation) and remains one of the most cosmopolitan places in Starfleet.^[1]