Starbase 9
Starbase 9 was a Federation starbase administered by Starfleet. This starbase was located in the Alpha Quadrant.

In 2259, the location of this starbase was labeled on a stellar cartography chart that was seen on the 's ready room viewscreen. ()

In 2267, the starship  was en route to Starbase 9 for resupply, when it encountered a previously-uncharted black star, which trapped the starship in its gravity well. The Enterprise was able to escape by utilizing full warp power in reverse, but the resulting whiplash effect propelled the ship into a time warp, through which the Enterprise traveled to the year 1969. ()

In 2399, the location of Starbase 9 was labeled on a Federation star chart that was in Fleet Admiral Kirsten Clancy's office at Starfleet Headquarters. The base was located in or near to Federation space. () 

In 3190, the location of Starbase 9 was labeled on a star chart used by Commander Paul Stamets for tracking the movement of the Dark Matter Anomaly through the galaxy. ()

Appendices

Background information 
In a deleted scene from , placed between the departure of the black cat and the arrival of , DeSalle inquired to Uhura the "time elapse for a message to and from Starbase 9", which he learned was "almost ten solar days" from their location at Pyris VII. DeSalle then requested that all the appropriate log entries of the past solar day were relayed there. This fact was later referenced in the .

Apocrypha 
Issue 2 of the comic book "Who's Who in Star Trek" established the starbase as having been constructed sometime during the 22nd century, and located close to Sector 001, near the border of the Miaplacidan Alliance. The comic also stated the location was chosen due to the proximity of the nearby black star which provided an opportunity for scientific study, and the base consisted of both planetary and orbital facilities.

According to the comic book "Star-Crossed", in the late-2250s the USS Eagle docked at the Starbase 9 space station facility before embarking on a planetary survey of Caperna IV, during Commander James T. Kirk's first month as starship first officer.

Starbase 9 was referenced in the Pocket TNG ization of , in which the Enterprise was headed for shore leave at the starbase when Lieutenant Commander Montgomery Scott celebrated his birthday in the year 2267. Commander Tattinger was also assigned to the starbase at the time.

In the comic book "The Quality of Mercy", Commodore Markessan was the commander in the mid-23rd century. He resided on the starbase's planetside facility with his family. In the early 2370s, Markessan's son, Tak Markessan, was involved in a tragic ground vehicle accident which cost the life of his girlfriend, Lorina. Grief-stricken, Tak left Starbase 9 shortly thereafter in a shuttlecraft, bound for the Miaplacidan Alliance.

External links 
 

bg:Звездна база 9
de:Sternenbasis 9
es:Base Estelar 9
ja:第9宇宙基地
nl:Sterrenbasis 9
0009, Starbase