Alpha Coronae Borealis (also known as 5 Coronae Borealis, Gemma and Alphecca) is a star system, a binary star consisting of a type F white star primary with a type G yellow star companion. It is visible in the constellation of Corona Borealis, and is located 75 light-years from Earth. Situated in the galaxy's Alpha Quadrant, this system is in or near the space of the Federation in the general vicinity of Rasalhague, Alshain and Upsilon Aquarii. (ST reference: Star Charts)

This system is the location of a number of planets, including fourth planet Alphecca IV, the homeworld of the Alpheccan civilization. For religious and cultural reasons, the Alpheccans rarely leave their system. (TNG novel: Intellivore)

Seventh planet Gemma VII is, in the late 24th century, a holding of the Romulan Star Empire, and a friendly port-of-call for starships of the Romulan Imperial Fleet. (ST video game: Starfleet Command III)

In SFC3 gameplay, this name was part of a list that were applied to planets on the game map, with random attributes assigned to them. Other Star Trek sources show Gemma as being independent and within Federation space, despite this seventh planet of Gemma's system apparently harboring Romulans.

System[edit | edit source]

  • Alpha Coronae Borealis trinary

Appendices[edit | edit source]

Connections[edit | edit source]

Stars, systems and objects of the Corona Borealis constellation
Alpha Coronae Borealis (Gemma)Beta Coronae Borealis (Nusakan)Gamma Coronae BorealisEta Coronae BorealisKappa Coronae Borealis (Dopteria)Lambda Coronae BorealisRho Coronae Borealis (Ludugia) • Sigma Coronae BorealisTau Coronae Borealis (Hupyria)Zeta Coronae Borealis
Alpha and Beta Quadrant stars and star systems (A)
AaladAarakAarraAberrizAbraxasAbyss AlphaAccellusAchillonAcibenAdigeonAdonoloAecupusAerieAerimeaAesaAesirAesuriAetisanAexixAfritalisAgiirratAgricoAhzdarAiligAinAindiaAitiAkersAlactiAladfarAladsoAlamedusAlannahAlarisAlastorAlatumAlchibahAlcyoneAlderamAlderaminAldhanAlephAlexisianAlfas DucatAlfin-BernardAlfirkAlfrAlgeronAliothAlkaluropsAlkesAlkukAllendonAlmeisanAlnathAlnitakAlonsoAlorinaAlpha AldissAlpha ArietisAlpha AtaruAlpha CorandaAlpha DarwinAlpha Epsilon TauriAlpha EquuleiAlpha HeliosAlpha HonorusAlpha HydrosAlpha KirikiAlpha KratoniiAlpha Marak 272Alpha NarniaAlpha NexusAlpha OmicronAlpha OrionisAlpha OrtelinaAlpha ParnaculonAlpha PerseiAlpha QuarramAlpha SarpeidonAlpha ShiroAlpha SigmaAlpha TauAlpha ThetaAlpha VarangisAlpha VegetisAlpha VergorisAlpha XaridianAlphardAlphaxAlsafiAltamidAltaneaAltanis IdrilonAltarAlterfAlthosAltorAludraAlulaAlyaAlycenAmalAmbrose's StarAmi BeraAmmdonAmonAmpolisAnaxarAndreaAndrocusAnkaaAngosiaAnnobonAnrakAntedeAntideAntigoneAntiliosAntipathyAntonehkAntos VeriaApriliaAquila ScorpiArachnaeArakAralanArcadiaArcan-BetaArcanis MajorisArchernarArchibaldArdajiArdanAretianArgentomeaArgonaArhenniusAriannaAridanesAridiaArkabArkenArktoArloffArmusArnabArnebArnebiusArnosArrakisArtaleirhArtemisArvadaAsellusAskalonAsmidiskeAsteropeAstridaAtaliaAtlasAtriaAtrius'aucdetAumoide PoreAuvaAX AraeAxelotAyin AlephAyvrenAzati Prime Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (A) AaamazzaraAchirdAdhilAegis AquilaAjirAl NathAlam'ak system (Alam'ak) • AlbireoAlcorAldhibainAlferaz (Alferaz AAlferaz B) • AlgolAlkaidAlmachAlmathaAlpha Andromedae (Alpha Andromedae AAlpha Andromedae B) • Alpha AquariiAlpha AquilaeAlpha AurigaeAlpha BoötisAlpha Canum VenaticorumAlpha Coronae BorealisAlpha CygniAlpha MajorisAlpha OphiuchiAlpha ProximaAlpha TrianguliAlpha Ursae MajorisAlpha-1 AndromedaeAlpha-2 AndromedaeAlpheccaAlpheratzAltairAnchaAndromedaAnkaroAnticaAntosAokiiAquilaArawathArbazanArcturusArduriaArgayaArgusArtelineAscellaAtairAtikAurelia Alpha Quadrant icon image.
Beta Quadrant stars and systems (A) AcamarAchernarAcruxAcubensAdaraAdelphousAdhaferaAdharaAelasAgenaAgornuAgurthaAjilonAkaaliAl NairAldebaranAlgorabAlhenaAlnilamAlpha-2 CentauriAlpha CancriAlpha Canis MinorisAlpha Canis Majoris (Alpha Canis Majoris AAlpha Canis Majoris B) • Alpha CarinaeAlpha Centauri (Alpha Centauri B) Alpha ChamaeleonisAlpha CirciniAlpha Comae BerenicesAlpha CrucisAlpha CygniAlpha EridaniAlpha GeminorumAlpha GruisAlpha HydriAlpha LeonisAlpha MensaAlpha MonocerotisAlpha OniasAlpha PictorisAlpha PrimeAlpha ScorpiiAlpha VirginisAlpha VolantisAlpha ZetaAlshemalAlungisAmarAmargosaAndoriaAngelAntaresArchanisArcherArgeliusArgelius BAridedAviorAxanarAzhaAzraga Beta Quadrant icon image.
Alpha and Beta Quadrant stars and star systems (G)
GakoraGalagosGalarGalinaGaliulGallonikGallosGalonGaloxGalwayGamma 400Gamma 7AGamma AlphaGamma AmarGamma ArgusGamma ArietisGamma ChrysalisGamma DeltaGamma DemetriusGamma EmerataGamma KestraGamma LlongoGamma MeridienGamma OmicronGamma TarsesGamma TrianguliGamma TrixisGamma VertisGamma XaridianGamma YsalisGanarraGanielGanidraGaniezGarisGarrGarriatGasparGasioxGaziorGealanGekiaxGelokGelrakGemetGemonGenovese's StarGentariatGeresGeriesGesiumGesokGeziulGezonGhandiGharGhombaGhondrGilaGirielGixiakGobiGolgothaGolumbin 699GombaraGonalGorakGorlaGorsachGowokGradientesGrafGrenfilGreshik TyrrGribbinGrisellanGriswald 3489GuldammurGunarp Alpha and Beta Quadrant icon image.
Alpha Quadrant stars and systems (G) GaladorGallinaGamma AndromedaeGamma AquariiGamma AurigaeGamma CapricorniGamma Coronae BorealisGamma CygniGamma DraconisGamma LyraiGamma OphiuchiGamma PerseiGeilodGemmaGemulonGentaraGoralisGotannaGreat PulsarGrevvenGrovranGulvaria Alpha Quadrant icon image.
Beta Quadrant stars and systems (G) GacruxGainsGalorndon CoreGaldonterreGamma CraterisGamma CrucisGamma EridaniGamma EridonGamma GeminorumGamma HydraGamma LeporisGamma MensaeGamma OrionisGamma PavonisGamma ScorpiiGamma TucanaeGamma XertiaGamma Zeta 4GanaldaGaradiusGaragGaskoGateway GideonGlintaraGomeisaGoranGorathGornGornarGotaraGr'oth 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.

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