Memory Beta, non-canon Star Trek Wiki

A friendly reminder regarding spoilers! As always, the expanded Trek universe is in a period of major upheaval with the continuations of Strange New Worlds and Prodigy, the advent of new eras in gaming with the Star Trek Adventures RPG and Star Trek Online, as well as other eventful releases such as Section 31, the ongoing IDW Star Trek comic and spin-off Star Trek: Defiant. Therefore, please be courteous to other users who may not be aware of current developments by using the {{spoiler}}, {{spoilers}} OR {{majorspoiler}} tags when adding new information from sources less than six months old (even if it is minor info). Also, please do not include details in the summary bar when editing pages and do not anticipate making additions relating to sources not yet in release. THANK YOU

READ MORE

Memory Beta, non-canon Star Trek Wiki

Starbase 257 was a Federation Starfleet Sigma-class starbase with a space station facility in the 24th century.

Service history[]

During the Dominion War, in the year 2374, Starbase 257 came under attack by several Jem'Hadar fighters. Jake Sisko and Nog had just left the starbase before the attack aboard the USS Shenandoah. (DS9 episode: "Valiant")

In the event of an attack on Deep Space 9 by hostile forces such as the Dominion, starships stationed at Starbase 257 were to travel there to assist the USS Defiant and the Danube-class runabouts in protecting the space station. (DS9 reference: Star Trek: Deep Space Nine Technical Manual)

Location[]

Starbase 257 was located in relatively close proximity to Deep Space 9 in the B'hava'el star system. (DS9 episode: "Valiant")

Appendices[]

Connections[]

Sigma-class starbase space stations
Emblem of the United Federation of Planets. Starbase 17Starbase 69Starbase 82Starbase 109Starbase 176Starbase 211Starbase 257Starbase 375 Seal of the Federation Starfleet.
Federation starbases
Starbases Federation HeadquartersStarfleet Headquarters1234567891011121314151617181920212223242525-Alpha2627282930313233343536373939-Sierra404142434445464747-Vanguard484950515253555658596162636465666768697172737475767779808182838485868788899091929395969799101102103104105106108109112113114117118120121122123126127128129131133134137143144146148152153157162171172173174175176178179180182185188189193197200201202209210211212214215217218219220222223224227231234235236237244247252257260261263264268277295297301302303307309310311312313314315324325326328336343344347357364371375383389393395401410411412413414416419420422434440452473495499505514515516521522523524528535541585592-Epsilon612621623693714718804823834906 (Vanguard)1317Starbase 3141 Romeo407761 CygniAlhenaAndorArdanaBattle Group 1Battle Group 2Battle Group 3Battle Group 4Battle Group 5BethelBravoCopernicusCoridanDenobulaDevalokaDiamandis 1DrozanaEarhartEuropa BaseFleet Setup StationG4G-6HearthHelaspontIcarusIndiaIridaniLambdaLeonovMagellanMI-17MidwayMontgomeryNeil ArmstrongNew XindusOmar StationOutpost Quebec AlphaR-3Regulus StationRigelRisaSeedea BaseSpace Station Sigma OneTazi StationUnity OneVulcanXindus Federation icon image. Starfleet icon image.
Kelvin timeline Starbase 1Starbase 76Starbase 82Starbase 91Frontier 17Starbase YorktownStarbase Zeta
Deep Space Stations 123456789 (I)9 (II)1012161175220253633C-15E-5G-6HubbleK-2K-5K-7K-8K-9K-10K-11K-12K-13K-22KR-1KR-3L-6M-20M-33R-5Repair Beta 6Portal 1
Kelvin timeline K-5K-7K-4K-11

External link[]