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Alpha Centauri TWotF

Inner system of Alpha Centauri primary Rigil Kentaurus.

Alpha Centauri is a trinary star system consisting of the three companion stars Rigil Kentaurus, Quindar and Proxima.

History and specifics[]

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Alpha Centauri vicinity.

At a little over four light-years distant, this is the closest star system to Earth in the Sol system. By the 24th century, the system's three inhabited planets and various space stations and outposts supported a population of over 21 billion sentient individuals. (TOS reference: Star Fleet Technical Manual; ST reference: The Worlds of the Federation; TOS novels: Crisis on Centaurus, Time for Yesterday)

It is located in the Beta Quadrant.

In an early extraterrestrial observation, Alpha Centauri was surveyed by the Vulcan civilization's starship Fal Chaya. (Decipher RPG module: Starships)

Earth's first permanent colony on one of the Alpha Centauri planets was established in the year 2116. (VAN - Declassified short story: "Hard News")

The Federation worlds here are sometimes also referred to simply as Alpha Centauri. According to Starfleet Intelligence outpost maps, this system's coordinates are 1.27N 2.92W, placing it in the Starfleet Intelligence sector 1. (FASA RPG module: Star Fleet Intelligence Manual)

During the Dominion War, Alpha Centauri was a pivotal planet in the Federation's defense, with its supply lines to Vulcan being the Federation's "life's blood", as Admiral Sitak told Benjamin Sisko in 2374. Captain Sisko thought it was a mistake to devote so many ships to protect them from the Jem'Hadar in a bid to "defend our way to victory". (DS9 novelization: ...Sacrifice of Angels)

Later that year, Alpha Centauri, along with Vulcan, Andor and Tellar Prime, were threatened by the fall of Betazed to the Dominion. (DS9 episode: "In the Pale Moonlight")

A Federation transwarp hub was opened in the system in the year 2404, an event which was attended by Admiral Chakotay. (ST website: The Path to 2409)

Alternate timelines[]

In an alternate timeline, Alpha Centauri was wiped out by the Xindi following their destruction of Earth in 2154. (ENT episode: "Twilight")

In another alternate timeline in which Montgomery Scott rescued James T. Kirk before he could be absorbed into the Nexus, Alpha Centauri was the first world that had been assimilated and was in the process of being converted into raw materials after the fall of Earth, decades after the assimilation of Earth in 2063. By 2293, the Alliance had secretly placed several hundred cloaked photon torpedoes near the system, intent on destroying the Borg presence there. (Star Trek novel: Engines of Destiny)

In another alternate timeline created by the death of Gabriel Bell prior to the Bell Riots in 2024, Earth remained a pre-warp civilization and never expanded beyond the Sol system. Consequently, neither the United Federation of Planets nor Starfleet ever existed. The USS Defiant, having been protected from the changes in the timeline by a subspace bubble, detected Romulan transmissions emanating from Alpha Centauri. This would indicate that the Romulan Star Empire was able to expand considerably further in this timeline due to the lack of Federation interference. (DS9 episode: "Past Tense, Part I")

In fiction[]

One story in the literature of Captain Proton featured this system. In "Captain Proton's Adventure at Alpha Centauri", one of its inhabited worlds planned an invasion of Earth in the year 2000. (ST - Captain Proton: Defender of the Earth short story: "Letters to Captain Proton")

System makeup[]

Other worlds: Toralon

See also[]

Appendices[]

Connections[]

Stars, systems and objects of the Centaurus constellation
1 CentauriAlpha Centauri (Rigil KentaurusQuindarProxima) • Beta CentauriTau CentauriTheta CentauriZeta Centauri the galaxy's Beta Quadrant icon image.
Alpha Centauri sector
Alpha Centauri system Alpha Centauri A (primary)Alpha Centauri I • II. Behemoth (Alpha Centauri II-A) • Alpha Centauri III (1 moon) • IV. Centaurus (2 moons) • Alpha Centauri V (2 moons) • Alpha Centauri VI (8 moons) • VII. Al RijilAlpha Centauri VIIIAlpha Centauri IXAlpha Centauri XAlpha Centauri XIAlpha Centauri XIIAlpha Centauri XIIIToralon Centauran icon image. Centauran icon image. Federation icon image.
Alpha Centauri BOlson • II. New MontanaPerry • III. Lang • IV. Kent
Proxima CentauriProxima Centauri (Proxima Maintenance Yards) • Proxima Centauri I (Proxima Centauri I-A) • Proxima Centauri IIProxima AlphaProxima Beta
Centauran stars and star systems
Centauran home system (Alpha Centauri): Rigil Kentaurus (Alpha Centauri A)Quindar (Alpha Centauri B)Proxima (Alpha Centauri C) Federation icon image. the galaxy's Alpha and Beta Quadrants icon image. Centauran icon image. Centauran icon image.
Alpha Canus Majoris/Alpha CanarisArabennBeta RigaliaEgara 172KolitorIllexLaxes AlphaLeoxaLuris EtaMaven ParsisMegolarMinarcis AlphaMolinusMoxenalusOronessOsirisParsus IndiPillas MinoraPiramPrincipPrincipius MidosQuadrixRidixSestarci 124SingularitySiriusTarletus
Alpha and Beta Quadrant stars and star systems (A)
AaladAarakAarraAbakirAbalmaAbassaAbdadiAbelAberrizAbessiaAboiraAbraxasAbrenaAbroraAbroxAb'vekAbyss AlphaAccellusAchillonAcibenAdigeonAdonoloAdraAd'rethAdrian's BaneAd'vethAecupusAeonAerieAerimeaAesaAesirAesuriAetisanAexixAfebraAfervaAflorAfritalisAgbarAgiirratAgricoAhadiAhzdarAia'vadiAiligAinAinaroAindiaAin'TokAirolaAitiAjoraAkemoraAkersAkirenAlabasterAlactiAladfarAladsoAlakAlamedusAlannahAlarisAlastorAlatumAlcyoneAlderamAlderaminAldhanAlelaAlephAleraAlexisianAleydaAlfas DucatAlfin-BernardAlfirkAlforAlfrAlgeridaAlgeronAlilaAliothAlkaluropsAlkukAllendonAlmedoAlmeisanAlmekanAlnathAlnitakAlonsoAlorinaAlpha AldissAlpha ArietisAlpha AtaruAlpha BaratisAlpha CorandaAlpha DarwinAlpha DemetriusAlpha EmoriAlpha Epsilon TauriAlpha EquuleiAlpha FeronisAlpha HeliosAlpha HonorusAlpha HydrosAlpha ImvoriAlpha Is'tekAlpha KirikiAlpha KratoniiAlpha LeporisAlpha Min'rothAlpha MaluriaAlpha Marak 272Alpha NarniaAlpha NemvadiAlpha NexusAlpha NimorraAlpha OmicronAlpha OrionisAlpha OrtelinaAlpha ParnaculonAlpha PerseiAlpha QuarramAlpha SarpeidonAlpha ShiroAlpha SigmaAlpha TauAlpha Tel'rethAlpha TenoriAlpha ThetaAlpha TrimoraAlpha VarangisAlpha VegetisAlpha VergorisAlpha XaridianAlphaxAlsafiAltamidAltaneaAltanis IdrilonAltarAlthosAltorAludraAlulaAlvaradiAlvarkaAlyaAlycenAma DaraanAmalAmanaAmborisAmbrose's StarAmebisAmeldaAmi BeraAmmdonAmonAmpokAmpolisAmstarAmvadaAn DaraanAnaxaAnaxarAndraAndrade AbyssAndreaAndrekAndrocusAneldaAneziraAnkiAngosiaAnnobonAnrakAnretaAntasAntedeAntiacusAntideAntigoneAntiliosAntipathyAntonehkAntos VeriaAntrosAnzibarAparchaAphir'kethApniraApriliaApyraAquila ScorpiAr DaraanArachnaeAradaArakAralanAraliAraraArb'saArbutusArcadiaArcan-BetaArcanis MajorisArchernarArchibaldArdajiArdanArdanaAretianArgentomeaArgezArgonaArhenniusAriaAriaxAriannaAridanesAridiaArkabArkenArktoArloffArmusArnabArnebArnebiusArnosAroriArovenArrakisArtaleirhArtemisArvadaAsaraAsearaAsellusAshgraveAshiraAsiti AlphaAsiti BetaAskalifex's SorrowAskalonAsmidiskeAsnethAsta DaraanAstamanteAstareaAsteropeAstra BelAstra BoraAstra EndaAstra FaraAstra ImraAstra InaAstra JelraAstra JoraAstra KaldaAstra KolAstra LeraAstra MelvaAstra MentaAstra NorAstra PevraAstra RendraAstra VeldraAstra VinAstra YaraAstra YeraAstridaAtabisAtaliaAtalisAtana DaraanAtarviAtlasAtriaAtriusAtropiraAtryn'aucdetAugustus GammaAumoide PoreAuvaAveryAvanAvekAv'telAX AraeAxelotAxtoxAyelaAyin AlephAylus AlphaAylus BetaAytaAyvrenAzati PrimeAzedisAzentraAzinda the galaxy's Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (A) AaamazzaraAbilakk AlphaAbilakk BetaAchirdActriumAdhilAdia AlphaAdia BetaAegis AquilaAjirAl NathAlam'ak system (Alam'ak) • AlbireoAlcorAldhibainAlferaz (Alferaz AAlferaz B) • AlgolAlgiraAlkaidAlmachAlmathaAlpha Andromedae (Alpha Andromedae AAlpha Andromedae B) • Alpha AquariiAlpha AquilaeAlpha AurigaeAlpha BoötisAlpha Canum VenaticorumAlpha CamusAlpha Coronae BorealisAlpha CygniAlpha MajorisAlpha OphiuchiAlpha ProximaAlpha TrianguliAlpha Ursae MajorisAlpha ZariaAlpha-1 AndromedaeAlpha-2 AndromedaeAlpheccaAlpheratzAltairAmlethAnchaAndromedaAnkaroAnticaAntosAnzat AlphaAnzat BetaAokiiAquilaArawathArbazanArchariaArcturusArduriaArgayaArgusArtelineAscellaAtairAtikAureliaAvenal the galaxy's Alpha Quadrant icon image.
Beta Quadrant stars and systems (A) AcamarAchernarAcruxAcubensAdaraAdelphousAdhaferaAdharaAelasAgenaAgornuAgurthaAjilonAkaaliAl NairAlchibahAldebaranAlgorabAlhenaAlkesAlnilamAlpha-2 CentauriAlpha CancriAlpha Canis MinorisAlpha Canis Majoris (Alpha Canis Majoris AAlpha Canis Majoris B) • Alpha CarinaeAlpha Centauri (Alpha Centauri AAlpha Centauri BAlpha Centauri C) • Alpha ChamaeleonisAlpha CirciniAlpha Comae BerenicesAlpha CorviAlpha CrucisAlpha CygniAlpha EridaniAlpha GeminorumAlpha GruisAlpha HydriAlpha LeonisAlpha MensaAlpha MonocerotisAlpha OniasAlpha PhoenicisAlpha PictorisAlpha PrimeAlpha ScorpiiAlpha VirginisAlpha VolantisAlpha ZetaAlphardAlshemaliAlterfAlungisAmarAmargosaAmiriiAndoriaAngelAnkaaAntaresArchanisArcherArgeliusArgelius BAridedAviorAxanarAzhaAzraga the galaxy's Beta Quadrant icon image.

References[]

External links[]

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