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

Epsilon Ionis is a binary star system, located about 30 light-years from the Kyr system, consisting of a star with a black hole in a highly elliptical orbit. The primary star had just gone nova not too long before a point in the 2260s when the USS Enterprise was nearby at Kyros, causing an intense wave of radiation to close in on that position. The radiation was picked up by the black hole, from the nova star, as energy in a gravitational field. Because of the fast motion of the black hole as it approached the perihelion in its ellipse motion, a slingshot effect occurred, propelling parts of a radiation field at warp 10 in the direction of Enterprise. (TOS novel: Spock, Messiah!)

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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 ScorpiiEpsilon VirginisEta AntliaeEta CorviEta CrucisEta EridaniEta HorologiiEta IndiEta LupiEta ScorpiiEta VirginisEye of Grun Beta Quadrant icon image.
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