Memory Beta, non-canon Star Trek Wiki
Memory Beta, non-canon Star Trek Wiki

Epsilon Eridani (also known as Delta Orcus and Toredar) is a star, an orange star that is visible from Earth in the Eridanus constellation, some 10.5 light-years distant. This star system contains the planet Axanar, and is located in the general vicinity of 61 Ursae Majoris, Sirius and the Tau Ceti system. (ST reference: Star Charts)

System[]

  • Delta Orcus (primary)
    • Axanar
    • Delta Orcus II
    • Delta Orcus III

Appendices[]

Connections[]

Stars, systems and objects of the Eridanus constellation
1 Eridani (Tau-1 Eridani)3 Eridani (Azha, Eta Eridani)13 Eridani (Zibal, Zeta Eridani)14 Eridani18 Eridani (Delta Orcus, Toredar, Epsilon Eridani)23 Eridani (Rana, Delta Eridani)34 Eridani (Gamma Eridani, Zaurak)38 Eridani (Beid, Omicron-1 Eridani)40 Eridani (Keid, Omicron-2 Eridani, Vulcanis)59 Eridani67 Eridani (Cursa, Beta Eridani)82 Eridani88 Eridani198 EridaniAlpha Eridani (Achernar)Beta Eridani (Cursa, 67 Eridani)Chi Eridani (Caleb, Kaleb)Delta Eridani (Rana, 23 Eridani)Epsilon Eridani (Delta Orcus, Toredar, 18 Eridani)Eta Eridani (Azha, 3 Eridani)Gamma Eridani (34 Eridani, Zaurak)Iota EridaniOmicron-1 Eridani (Beid, 38 Eridani)Omicron-2 Eridani (Keid, 40 Eridani, Vulcanis)p EridaniTau-1 Eridani (1 Eridani)Tau Eridani CloudTheta Eridani (Acamar)Zaurak (34 Eridani, Gamma Eridani)Zeta Eridani (Zibal, 13 Eridani)
Klingon stars and star systems
14 Cancri14 Leonis15 Leporis15 Lyncis16 Cancri18 Eridani2 Corvi22 Hydrae24 Geminorum27 Geminorum26 Monocerotis3 Coronae Borealis38 Lyncis42 Boötis43 Andromedae48 Aquarii54 Geminorum57 Andromedae (Alam'ak, Behr'ak, Czar'ak) • 59 Eridani6 Delphini67 Eridani7 Aurigae75 Geminorum8 Aurigae8 MonocerotisAaladAberrizAgenaAgiirratAiligAlam'ak (Alam'ak, Behr'ak, Czar'ak) • AlhenaAlmachAlpha MonocerotisAltanis IdrilonAmarAquilaArchanisArktoArnosAxanarAxelotAzragaBaldukBehr'akBeta AndromedaeBeta BoötisBeta CentauriBeta Coronae BorealisBeta DelphiniBeta EridaniBeta LankalBeta PentheBeta ThoridorB'MothBorethBortasBrestantBurukCambraCernenCerzomCossinaChu'DeghCursaCzar'akDa'KelDayosDellerenDelta CyannaDelta KhinahDelta LeporisDhum'QhaDhu'QuaDelta OrcusDoltecDon'zaliDoralaDorlaElkauronEpsilon AurigaeEpsilon CorviEpsilon EridaniEpsilon GeminorumEpsilon MonocerotisEta SerpentisFev'TokFGC-24187ForcasFuh'RhudGaldonterreGamma Andromedae (Alam'ak, Behr'ak, Czar'ak) • Gamma AquariiGamma EridonGamma GeminorumGanaldaGanarraGhombaGilaGorathGrafGr'othHadarHaleeHamalzH'atoriaHegh'taHor-chaHrakkourIkaalIkaliaIota GeminorumKachtullaKa"hatKahlessKandruKannonKanthKanthuKaphKaplhaadKapor'AtKappa GeminorumKarhammurKarregheniKathraKavrot javmaH javKedgellanKhashahKhitomerKinkuthanzaKintirK'KorranKlach D'Kel BrachtK'lai KlinzhaiKlamuthKlathindKlevasKlinzhai (K'lai Klinzhai) • KlorgatKlothosKohlKolothosKoranischatKorgochtKorinarKorregKorvadKorvusKrazKrellKrios systemKrychekK'TazzaK'thar (K'lai Klinzhai) • K't'ingaK'TinnamKumarKuraK'VortLaktarLambda GeminorumLandauLanderrabbLaurentianLazarraLoskiLothosMaazMaht-H'aMakrechaMarangaMarcanMarramMazurM'CharMebsutaMempaMinkarMirachMorskaMrangMuldorMunjebNarendraN'derialNegh'varNekkarNereitNimbusNo'MatNusakanOgatOmega-2 CygniOmicron LeonisOnzaPaghPalgrenaxPenchanPhadPhaedusPhebenPhillo'tokPleth'raPlyranaP'rangPsi CancriPuriazQaitosQo'noS (K'lai Klinzhai) • Q'TahlQua'Khanqul TuqQurelletQu'VatRaiRaknalRhota'NevRibeldaliaRotanevRotarranRuchbaSadachbiaSadatoniSanurnaSelta AvastamShahkurSifSigma GeminorumSigma KinnaSinnawa LotosSomrawSoranT'acogTarazedTarfTariaxTau LacertaeT'DakkaTegmeniT'ghaTheta HydraeTikaToh'kahtTok'BhulTomanT'ongToredarTornaToronTozoxTraelusVenatorVeneradtVerianneVilliamVor'chaVornVor'nakVuriexWozXolXuxiazYa'vangYeradY'temYullumZemicaZeta AurigaeZeta CancriZeta Pictoris Emblem of the Klingon Empire.
Alpha and Beta Quadrant stars and star systema (D)
DaffodonDagemDak-AlphaDakiakDaledDanae VictoriaDanara 5986DanianDantarDantonDanulaDaranDark HorseDarosDar'shintaDauouuyDavidulDaxuraDD TauriDedderacDekianDelanosDeliorDeliusDellatonDellerenDelmasDelosDelta (Delta Principius/Delta Triciatu)Delta ArietisDelta ArlanaDelta CassiopeiaeDelta CyannaDelta DariusDelta FuegoDelta GammaDelta GammaDelta IndusDelta KhinahDelta MajorisDelta NeezottDelta OmegaDelta Principius/Delta TriciatuDelta SigmaDelta ThetaDelta VaraDelta VegaDelta Zeta 785DemeterDenabDeneb KaitosDenkirDenocetDenroDerenjaDetriaDevidianDevnarDevonaDexelDextera 273Dhum'QhaDhu'QuaDiadDidactiDidiDigifalDilyutDinarDisDisuzDixiakDizokDolcanDonovan's StarDon'zaliDoonaDoralaDoskaDouruineDoxiezDozoxDragoDrakenDramiaDraomnDraxis IIDrexlerDridDrixaneDundeeDuosetelDuraianaDuralaDuranDuviniax Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (D) DannusDavonDelaviDelkarDelta AquilaeDelta AurigaeDelta HerculisDelta Pegasi (Delta Pegasi ADelta Pegasi B) • Delta Ursae MajorisDenabDeneb systems: (DenebDeneb KaitosDeneb el Okab) • Denobula TriaxaDnocesDoltecDopteriaDorvanDraco MinoraDraco Omega 371Draco UrsulaDraygoDraylonDreonDubhe Alpha Quadrant icon image.
Beta Quadrant stars and systems (D) D'deridexDa'KelDasha VertaDavlosDayosDelphicDelta CanarisDelta CorviDelta DoradoDelta EridaniDelta GeminorumDelta HydriDelta LeonisDelta LeporisDelta OrcusDelta PavonisDelta PhoenicisDelta RanaDelta VelorumDenebolaDenevaDeniusDerexDesotrianaDessicaDevolinDevorasDevorrenDevronDewaDimorusDinasiaD'KorinDonatuDrovnaDumok'azen Beta Quadrant icon image.
Alpha and Beta Quadrant stars and star systems (E)
EdrinEdrisEgara 172EizebEkinusEl AdrelElbaElkauronEllison's StarElohimElonaElvrosElysia IncendaeElzbarEmbenEmilaEminiarEndicorEnochEntrunarEojurEpsilon 119Epsilon Anubis (Epsilon Anubis AEpsilon Anubis B) • Epsilon BallaraEpsilon BetaEpsilon CetiEpsilon DeltaEpsilon FornacisEpsilon IonisEpsilon KitajEpsilon MinoraEpsilon MirandaEpsilon SoronaEpsilon TauriEpsilon ThetaEpsilon Ursae MajorisEpsionEquessErcolaEremarErgolErivekEsablEskiisEssaiEstoEstradaEta SeratornEta TauriEta TrianguliEzani Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (E) EdasichEl NathElasi PrimeEltaninEnnarEnteliorEpsilon AurigaeEpsilon BoötisEpsilon CygniEpsilon DraconisEpsilon OphiuchiEpsilon SerpentisEta CassiopeiaeEta Coronae BorealisEta DraconisEta OphiuchiEta SerpentisEta Ursae MajorisEye of Ket-Cheleb Alpha Quadrant icon image.
Beta Quadrant stars and systems (E) EdinovEisnEjul ThelniEpsilonEpsilon CanarisEpsilon Canis MajorisEdrenEpsilon CarinaeEpsilon CorviEpsilon EridaniEpsilon GeminorumEpsilon GruisEpsilon HydraeEpsilon Indi (Andoria) • Epsilon LibraeEpsilon MonocerotisEpsilon OrionisEpsilon PavonisEpsilon PhoenicisEpsilon ScorpiiEta AntliaeEta CorviEta CrucisEta EridaniEta HorologiiEta IndiEta LupiEta ScorpiiEta VirginisEye of Grun Beta Quadrant icon image.
Alpha and Beta Quadrant stars and star systems (T)
TabukTagusTajarhiTakanTakanarraTakoiTalgatTaliTalinTalithaTallusTalnaTaloraTalquosTamarosTanarisTaniaTandorianTantalusTaojiTaosTaranTarazedTarettTarfTariaxTaris SetiTarletusTarnakTarquoleseTarsusTartarusTasoxTasusTau BetaTau GammaTau OmegaTaureanTauro-34TautallusTauteeTaxakTaygetaTaziokTaziorT'DakkaTe AwamutuTechnisTejatTekianTekielTelcosusTelumTeluridianTemarisTemaziTemirTenakTenaraTendarTendarriTenekratusTenberTera LaraTeranthTerazon-X31TergaTerminimurusTerratinTerrellianTessmataTesumTevronTewaTezel-OrokoTezionThabitThalakThaliaThallusThark-MorkolTharnosTharsisThasusTheata LeonisThelonii system (Thelonii) • ThetaTheta 116Theta BowlesTheta CobriniTheta CygniTheta GammaTheta MajorisTheta MarianaTheta MeesTheta RillTheta TauThetalianThevosTholusThonolanThorian-VThoris AmarnisThranstorThraxThrazThrellviaThubanTHX-1138TiganTikopaiTiliulTimoniumTimorTimoreTir KapovTirianTirosTitanTitaniasTithadiTizumTlaoliTNC-5527TohvunTokanTok'BhulTolochonTolorTomanToolianTorTorgu-VaToronaTortugaToziuzTozoxTragerTraklivTrelkisTri-BetalineTri-Rho NauticaTriaminusTriangelesTriangularisT'RillTrillbyTripoliTruaiTruxtunTseenTsihTsugh KhaidnnTszeTufemTulanTutakai system (Tutakai) • T'VantTyburnTychoTyntTyoloTyraTyrtaeusTyrus Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (T) TagraTalosTama/TamarTammeronTarahongTarvoTasakTau CetiTau CygnaTau BoötisTaurusTegedaarTellarTemeckliaThalosTherbiaTheta AquariiTheta DraconisTheta PegasiTL-9139TomedTopinTormanTorrosTrelkaTriangulumTrillTrivasTyl Alpha Quadrant icon image.
Beta Quadrant stars and systems (T) TalvathTarodTau CentauriTau DeltaTau LacertaeTegmeniTellunTeneebiaTerixTessenTeutilThalassaThallonTheta CentauriTheta EridaniTheta HydraeTheta IndiTheta LeonisTheta PavonisTiburonTigelisT'MetToredarTorekTornaTraelusTranome SarTrilith Beta Quadrant icon image.
Alpha and Beta Quadrant stars and star systems (0-9)
5 Arietis6 Arietis6-156-237 Ursae Minoris12 Lyncis13 Arietis19 Tauri22 Hydrae22 Ophiuchi25 Tauri37 Cassiopeiae43 Aquarii47 Draconis56 Arietis57 Arietis61 Ursae Majoris74 Tauri77 Ursae Majoris78.56/3.54/23.4483 Beta114 Delta114 Trianguli128 Trianguli334 Scorpii415 Arietis780 Arietis4725 CancriSystem 330System 7348 Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (0-9) 1 Herculis2 Ophiuchi3 Coronae Borealis4 Aurigae5 Coronae Borealis6 Delphini7 Aurigae7 Delphini8 Aurigae8 Canum Venaticorum10 Canum Venaticorum10 Lyrae11 Lacerti12 Canum Venaticorum12 Draconis13 Aurigae13 Draconis14 Draconis14 Lyrae15 Lyncis15 Sagittae15 Virginis16 Ceti16 Cygni17 Andromedae17 Aquilae17 Piscis Austrini20 Draconis21 Andromedae (21 Andromedae A21 Andromedae B) • 21 Boötis23 Draconis24 Cassiopeiae26 Pegasi27 Herculis30 Boötis31 Aquilae33 Aurigae33 Draconis34 Aquarii34 Aurigae35 Ophiuchi37 Cygni37 Serpentis38 Sagittarii40 Capricorni42 Boötis43 Andromedae44 Persei46 Andromedae50 Cygni50 Serpentis51 Pegasi53 Aquarii53 Aquilae56 Aurigae57 Andromedae57 Serpentis59 Aquarii61 Cygni61 Draconis63 Draconis65 Herculis70 Ophiuchi92 Herculis94 Aquarii99 Herculis112 Tauri218 Persei329 Aurigae492 Lyncis1440 Ophiuchi (1440 Ophiuchi B) • 1616 Ophiuchi1865 Serpens4408 Trianguli Alpha Quadrant icon image.
Beta Quadrant stars and systems (0-9) 1 Centauri1 Orionis2 Corvi3 Canis Minoris3 Eridani5 Virginis8 Monocerotis10 Canis Minoris11 Hydrae13 Crateris13 Eridani13 Leporis14 Cancri14 Eridani14 Leonis15 Leporis16 Cancri17 Circini17 Pavonis18 Eridani20 Librae23 Eridani24 Geminorum24 Leonis24 Orionis25 Canis Majoris26 Monocerotis26–27 Crucis27 Geminorum32 Pictoris34 Eridani34 Fornacis36 Leonis38 Eridani38 Lyncis40 Eridani (40 Eridani A40 Eridani B40 Eridani C) • 43 Pavonis46 Orionis54 Geminorum54 Orionis59 Eridani65 Cancri65 Fornacis66 Geminorum67 Eridani67 Virginis70 Leonis70 Ophiucus74 Orionis75 Geminorum78 Geminorum78 Pavonis82 Eridani83 Leonis (83 Leonis A83 Leonis B) • 87 Tauri88 Eridani88 Pavonis89 Carinae94 Leonis111 Pavonis113 Pavonis127 Scorpii128 Pavonis128 Trianguli198 Eridani1020 Octantis1212 Muscae4403 Pavonis Beta Quadrant icon image.

Background[]

Epsilon Eridani was identified as Vulcan's star in the reference book Spaceflight Chronology, as well as in the TOS novel: Strangers from the Sky. However, in 1991, Gene Roddenberry along with three astrophysicists determined 40 Eridani A (first suggested as the Vulcan sun by James Blish in Star Trek 2) was the more likely candidate. This has subsequently been reinforced in other novels, and canonically in the ENT episode: "Home".

Real-life astronomy currently has determined Epsilon Eridani to be a singular star with a large gas giant planet, but Star Charts shows the location as a binary star, although some binaries listed in Star Trek publications use that description for systems with stellar-sized gas giant companions instead of additional stars. FASA RPG module: The Four Years War provided Axanar the alternate system name Delta Orcus and called this a K0 type orange dwarf, another slight difference from real-life observations.

In the name "Delta Orcus", the stellar notation using the Greek language letter "delta" indicates that there might be a star group or constellation of some sort named "Orcus", of which Delta Orcus would logically be indicated to be the fourth most prominent star or system.

In TNG video game: Birth of the Federation, the orbital configuration of the game map star systems was randomly generated each time a new game started.

External links[]