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For other uses, see Yontasa.

Map of the Yontasa sector in 2411.

The Yontasa sector was a region of space, a sector located in the Tekara sector block of the the galaxy's Delta Quadrant. In 2409, the sector was under nominal control of the Vaadwaur Supremacy. (STO - The Delta Quadrant missions: "Mindscape", "Takedown")


The sector block's name was derived from the Yontasa Expanse, which lay within its borders. (ST reference: Star Charts, STO video game: Delta Rising)


Map of the Yontasa sector in 2409.

This was one of six sectors that became more easily accessible to the AQA powers through the Iconian gateway connecting the Tau Dewa sector block with the Jenolan Dyson Sphere, which had jumped to the neighboring Vyntadi sector block. Yontasa was the most coreward of the Tekaran sectors. (STO - The Delta Quadrant mission: "Mindscape")

This sector lay circa 50.000 light-years from Sol, spanning at least a thousand lightyears in length. (ST reference: Star Charts, STO video game: Delta Rising)


The spacially lost Federation starship USS Voyager traversed what would later be regarded the Yontasa sector in 2376. This odyssey included travelling between stardates 53520 and 53896. (ST reference: Star Charts)

In 2410, the AQA poured into the Delta Quadrant after the Jenolan Dyson Sphere jumped there. While the AQA and the Voth already contested the Delta Quadrant-based Solanae Dyson Sphere but had not ventured outside the Dyson sphere en masse.

The AQA soon became embroiled in the Vaadwaur Supremacy's war against local powers. Controlled by the Bluegills, an Iconian Empire servitor race, the Vaadwaur attempted to conquer the Delta Quadrant, starting with the Tekara and Vyntadi sector blocks. (STO video game: Delta Rising)

The AQA forged an alliance between the besieged powers, the Delta Alliance. Together, the AQA and the Delta Alliance members defeated the Vaadwaur at Vaadwaur Prime. (STO - The Delta Quadrant mission: "Takedown")


  • Brothra system
  • Brunal system
  • Class-J Nebula
  • Class-T Cluster
  • FGC-538960
  • Hodos system
  • Kartella system
    • Kartella IV
  • Kelsid system
    • Kelsin 3
  • Molinya system
  • Nakan system
  • Orlitus Cluster
    • Orlitus system
  • Orpisay Nebula
  • Pansarka system
  • Selnia system
  • Tahol-Meeroj system
    • Tahol-Meeroj
  • Tarakis system
    • Tarakis
  • Toranius system
    • Toranius Prime
  • Qomar system
  • Wyanti system
    • Telsius
  • Wysanti system
  • Yontasa Expanse

Native species

Nations and factions



Delta Quadrant sectors
Alsuran sectorDalmine sectorDelta Quadrant sector blockDevore sectorKotaba sectorMarkonia sectorPodaris sectorSector 3556Sector 3658Sector 41741Sector 41751Sector 41753Sikarian sectorSyllerran sectorTakara sectorTekara sector blockVaskan sectorVyntadi sector blockWindu sectorYontasa sectorunnamed sectors Delta Quadrant locator logo.
sectors of the galaxy
sector blocks and their major sectors Alpha Centauri (TeneebiaSierraVendor) • Alpha Trianguli (AlgiraAlmathaDorvan) • Beta Ursae (BajorCardassiaKalandra) • Eta EridaniGamma OrionisIota PavonisOmega Leonis‎OrelliusPi CanisPsi VelorumRegulusSirius‎Tau Dewa‎TekaraVyntadiZeta Andromedae Galaxy diagram image.
other named sectors AjmanAkiganelAldebaranAllicarAlpha 19Alpha CentauriAlsuranAncharAndorAnsterraAntaresAntedianArchimedesArawathArgosianArgusAriasBellatrixBelotiBeneciaBeta NiobeBeTauB'MothBolarusBoswelliaCabralCambornCampanCanopisCarrayaCelesCicadaDalmineDashaDelta VegaDenobulanDevronEerina VEliasEpsilon IXEpsilon QuinonezEpsilon Z-3Epsilon-485FoxtrotFries-PosnikoffG-5G17GallowayGameraGamma HydraGamma TrianguliGandGarimanGavariaGlesseneGlintaraGouramiGrewlerGuravaH-100HekarasHorusHromiHyralanIgoJaradanKalebKandariKavis AlphaKavrotLaganaLan'TuanaLeughonLidaraMagellanMalfabricanMarkomenMarkoniaMariotianMarrabMaxiaMekordaMinaraMoabMobiaMoranMurasakiOmegaOmicalOneamisuOphiucusParveniumPerseusPodarisProcyonQav'loSQuebecRakhariRedRegulusReydovanRhomboid Dronegar 006Rhymus MajorRomeoRukaniRutharianSamnarSargassoScyllaSelaySelcundi DremaSigma DraconisSigma-485SikarianSilarianSolTakaraTalarTangoTarodTauganTellarTerra NovaThanatosTharkianThetaTiberTintagelTrexelian 001Trexelian 002Trexelian 003Trexelian 004Trexelian 005Trexelian 006Trexelian 007Trexelian 008Trexelian 009Trexelian 010Trexelian 011TriangleTrillTyphonUmaniVandenVaskanVegaVega 6Vega-OmicronVenturiusVestaVrungVulcanV'varianWinduWodenWumparXarantineYontasaYurokZed LapisZhirrZ-6Zytchin
numbered sectors 00100200300400500600700800901012-J14C16C01818J01921C02323-D23-H02427F02829G030031032034038038G39J040047B054054R061063068H078079F90.4097108109G116T119D130134142145179204E213219A220B220A221-G221-H262275283396401418D4414-70492500507743-D861875902949104511561385150916071608160921582520355636413658442319658211662118521290213052139621399214592150321505215272153821602218032183421835219472203622055220932213922309223582240225712227572284622849228532285822956230792309425013367643762841751417524175364238

External link