Spoiler warning: Plot and/or ending details follow.

Eisn (also known as Ket-cheleb or Stelam Rom'lnz or 128 Trianguli) was a spectral class G9 white star, primary of the Romulan system. The Federation name for the star was Romulus. (TNG video game: Echoes from the Past)

History and specificsEdit

This area contained the home planets of the Romulan Star Empire, Romulus and Remus, as well as the moons Pirek and Elvreng. The system had a secondary star which is known as Romulus B. (TOS - Rihannsu novels: My Enemy, My Ally, The Romulan Way)

During the final battle of the Romulan Civil War in the year 2276, the crews of the USS Enterprise and ChR Bloodwing created a link between Eisn and Sol to defeat an attempt by the Three to destroy the Sol system with a sunkiller bomb. Ael t'Rllaillieu said in a public address that this event permanently bound the two stars together and any future attempts on either star would likewise affect the other, though she was bluffing. (TOS - Rihannsu novel: The Empty Chair)

By the beginning of the 2380s decade, the Romulans discovered their star was going to supernova within a matter of years. They asked the Federation for assistance in evacuating the 900 million inhabitants of their systems. In 2387, after the Attack on Mars destroyed vessels constructed to help evacuate the system, the Federation withdrew their assistance. Later that year, Eisn went supernova, destroying Romulus, Remus, and the other planets. (Star Trek: Picard; PIC novel: The Last Best Hope; TOS movie, novelization & comic adaptation: Star Trek; STO website: The Path to 2409)

System makeupEdit

There were at least seven planets in the system:

The Rihannsu novels state that the system contained six planets whilst FASA material indicates that there were seven but the latter only numbers six as Remus orbits Romulus.



Iota Pavonis sector block
bordered locations: Iota PavonisAlpha Centauri sector blockFederation-Romulan Neutral ZoneEridan Belt
sector Z-6 Fvillhaih system (Fvillhaih IFvillhaih II) • Lirss system (Lirss Prime) • Vhoran system (Vhoran)
Iconia system Iconia IIconia (Iconia's inner moonIconia's outer moon)
Tarod sector
Romulan sector/sector 30
Dimorus system (DimorusDimorus IIDimorus II-A) • Great Bloom/Bassen RiftK'shan system (K'shan) • Lonco system • Sarita system (Sarita III)
Romulus system Eisn/Romulus B: I. Aranusia • IIA/B. Romulus/Remus • III. S'latas • IV. D'lanam • V. Ulunam • VI. Trijth
Bolarus sector
Bolian/Tango sector
Breshar system • Ch'menira system • Llaiir system • NGC 1218Ponor systemRashana system • system Y
Bolarus system I. Se'ka • II. Krith • III. Bol'turFirst Bolarus asteroid belt • IV. Harmar • V. Bolin • VI. Tha'lat • VII. Ral'narSecond Bolarus asteroid belt • VIII. Sol'nar • IX. Bolarus IX • X. Motal • XI. Sernar • XII. Sath • XIII. Ki'siu
Devron sector Aihai system • Cero system • Delta Corvi system • Devron system • Fitzan system • Hobus system
Stars, systems and objects of the constellations of Triangulum and Triangulum Australe
15 Trianguli113 Trianguli114 Trianguli123 Trianguli ~ 128 Trianguli (Romulus system) • 4408 Trianguli553 Trianguli658 Trianguli766 Trianguli872 TrianguliAlpha TrianguliBeta TrianguliEta TrianguliGamma TrianguliIota TrianguliPhi TrianguliRV TrianguliSigma-285 TrianguliTriangulum GalaxyZeta Trianguli Australis
Stars, systems and objects of the Perseus constellation
139 Persei (Romulus system)218 Persei29 Persei44 Persei (Zeta Persei)Alpha PerseiBeta Persei (Algol)Iota PerseiKappa PerseiLambda Persei (Typerias)Omicron PerseiPerseus ArmZeta Persei (44 Persei)
Romulan stars and star systems
1 Centauri12 Canum Venaticorum123 Trianguli (123 Trianguli A123 Trianguli B) • 128 Trianguli (128 Trianguli A128 Trianguli B) • 139 Persei (139 Persei A139 Persei B) • 17 Circini34 Aquarii6 Arietis74 Tauri78.56/3.54/23.448 Canum VenaticorumAbraxasAchernarAcruxAgurthaAinAlgorabAlpha AquariiAlpha Canum VenaticorumAlpha ChamaeleonisAlpha CirciniAlpha EridaniAlpha HydriAlpha OniasAlpha PictorisAlpha VolantisArtaleirh (star)AtriusAviorBelak systemBestariBeta ArietisBeta Canum VenaticorumBeta ReticuliBeta VolantisB'levBrutusBuqretBu'uli TevCarrayaChaltokCharaCor CaroliCorillCorvus systemD'deridexDasha VertaDelta CorviDelta HydriDelta PhoenicisDelta VelorumDevorasDevorrenDewaDidactiD'KorinDrovnaDumok'azenEisn binary system (EisnEisn B) • EnnarEpsilon CarinaeEpsilon PhoenicisEpsilon TauriEta AntliaeEta CorviEta CrucisEta HorologiiEta TauriEye of GrunEye of Ket-ChelebFarlornFelussusGacruxGamma CraterisGamma CrucisGamma MensaeGamma TucanaeGaskoGeilodGentaraGlintaraGotannaGotaraHaakona systemHobusHyberai CentauriIota CarinaeIota HydriJezerekJustarusKapor'AtKappa TucanaeKe KwanusKet-cheleb binary system (Ket-cheleb AKet-cheleb B) • KevratasKhazara systemKirKrotarLambda CraterisLangusLeughonMakarMedusa systemMelikMenkentMira MajMu HorologiiMu VelorumNequenciaNew OthaNu OctantisOssecOtha PrimePallorPaxarPerenPi MensaePollusProsennaPsi VelorumQuatelRatorRedanskRegulusRho TucanaeRho VirginisRomii systemRomulus (Romulus ARomulus B) • RouleanRuchbahSaliehSamnarSandalSankraxSantoraSar'kellSheratanSoltarisStelam DelethamStelam Rom'lnz binary system (Stelam Rom'lnz AStelam Rom'lnz B) • TalvathTegedaarTerix/TerixTeutilTheta CentauriTigelisT'MetTorekTranome SarUmbriosUnrothUstullanVendorVertiliaXhujXi HydraeYagraYatilZaxx'nZeta Trianguli AustralisZeta PictorisZeta VolantisZevarus RomulanEmblem
Alpha and Beta Quadrant stars and star systems (E)
EdrisEkinusEl AdrelElbaElkauronEllison's StarElohimElysia IncendaeEmilaEminiarEndicorEnochEntrunarEpsilon 119Epsilon CetiEpsilon DeltaEpsilon IonisEpsilon KitajEpsilon MinoraEpsilon MirandaEpsilon SoronaEpsilon TauriEpsilon ThetaEpsilon Ursae MajorisEpsionEquessErcolaEremarErgolEsablEskiisEta SeratornEta TauriEta Trianguli Alphabetasym
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 AlphaQuadrant
Beta Quadrant stars and systems (E) EdinovEisnEjul ThelniEpsilonEpsilon CanarisEpsilon Canis MajorisEpsilon CarinaeEpsilon CorviEpsilon EridaniEpsilon GeminorumEpsilon GruisEpsilon HydraeEpsilon Indi (Andoria) • Epsilon LibraeEpsilon MonocerotisEpsilon OrionisEpsilon PavonisEpsilon PhoenicisEpsilon ScorpiiEta AntliaeEta CorviEta CrucisEta EridaniEta HorologiiEta IndiEta LupiEta ScorpiiEye of Grun BetaQuadrant

Template:Alpha and Beta Quadrant stars and systems (K) Template:Alpha and Beta Quadrant stars and systems (R) Template:Alpha and Beta Quadrant stars and systems (S)

Alpha and Beta Quadrant stars and star systems (0-9)
5 Arietis6 Arietis7 Ursae Minoris12 Lyncis13 Arietis22 Hydrae22 Ophiuchi37 Cassiopeiae37 Serpentis47 Draconis56 Arietis57 Arietis61 Ursae Majoris74 Tauri78.56/3.54/23.4483 Beta114 Trianguli128 Trianguli334 Scorpii415 Arietis780 Arietis4725 CancriSystem 7348 Alphabetasym
Alpha Quadrant stars and systems (0-9) 1 Herculis2 Ophiuchi3 Coronae Borealis4 Aurigae5 Coronae Borealis6 Delphini7 Aurigae7 Delphini8 Aurigae8 Canum Venaticorum10 Canum Venaticorum11 Lacerti12 Canum Venaticorum12 Draconis13 Aurigae14 Draconis14 Lyrae15 Lyncis15 Sagittae16 Ceti16 Cygni17 Andromedae17 Aquilae17 Piscis Austrini20 Draconis21 Andromedae (21 Andromedae A21 Andromedae B) • 21 Boötis24 Cassiopeiae26 Pegasi27 Herculis30 Boötis31 Aquilae33 Aurigae33 Draconis34 Aquarii34 Aurigae35 Ophiuchi37 Cygni38 Sagittarii40 Capricorni42 Boötis43 Andromedae44 Persei46 Andromedae51 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 AlphaQuadrant
Beta Quadrant stars and systems (0-9) 1 Centauri1 Orionis2 Corvi3 Canis Minoris3 Eridani5 Virginis8 Monocerotis10 Canis Minoris11 Hydrae13 Eridani14 Cancri14 Eridani14 Leonis15 Leporis16 Cancri17 Circini17 Pavonis18 Eridani23 Eridani24 Geminorum24 Orionis25 Canis Majoris26 Monocerotis26–27 Crucis27 Geminorum32 Pictoris34 Eridani34 Fornacis36 Leonis38 Eridani38 Lyncis40 Eridani (40 Eridani A) • 43 Pavonis46 Orionis54 Geminorum54 Orionis59 Eridani65 Cancri65 Fornacis66 Geminorum67 Eridani67 Virginis70 Ophiucus74 Orionis75 Geminorum78 Geminorum78 Pavonis82 Eridani83 Leonis (83 Leonis A83 Leonis B) • 88 Eridani88 Pavonis111 Pavonis113 Pavonis127 Scorpii128 Pavonis198 Eridani1020 Octantis1212 Muscae4403 Pavonis BetaQuadrant
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