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List of stars and star systems beginning with the letter "A".

Star or star system Arity Makeup Associated bodies Locational references Source reference
Aalad singular K'Linsann (Aalad III) Imperial Klingon States, coordinates 8.9S 6.7E
Acamar (Theta Eridani)
Achernar (Alpha Eridani)
Adhara (Epsilon Canaris, Epsilon Canis Majoris) binary star A component: spectral class B2Iab Adhara (Epsilon Canaris III) Federation space, Canis Major constellation, visible from Sol (430 light-years)
Aexix star system Aexix II, Aexix V-B near Gorn space
Agena (Beta Centauri)
Ahzdar singular none known near Sol (within 25 light-years)
Ajilon system
Akritiri binary star 2 type K orange stars planet Akritiri Delta Quadrant, near Heva, Enara ST reference: Star Charts; VOY episode: "The Chute"
Aksani quadrinary star type F white star primary; 1 type A blue-white star, 2 M-type red star companions Aksani homeworld Delta Quadrant, near Terrellia, Dralia, Antaria ST reference: Star Charts; VOY episode: "Drive"
Al Rijil (Rigil Kentaurus, Alpha Centauri A) part of trinary star system
Alam'ak (Gamma Andromedae A) part of multiple star system part of Gamma Andromedae system Behr'ak, Czar'ak Andromeda constellation, visible from Sol (350 light-years)
Albireo (Beta Cygni)
Alcyone system (Eta Tauri)
Aldebaran (Alpha Tauri)
Aldhan
Aleph
Alexisian system Alpha or Beta Quadrant, near Sector 061 TOS - Shinsei Shinsei comic: "Anything But Alone"
Alferaz (Alpha Andromedae A) part of binary star system part of Alpha Andromedae system Hajj Andromeda constellation, visible from Sol (97 light-years)
Alfr part of trinary star system Thelonii, Xanthii near Sol (within 25 light-years)
Algol
Allendon
Alnitak (Zeta Orionis) trinary star three stellar masses inhabited planet Orion constellation, visible from Sol (800 light-years)
Alpha system (Alpha Canaris, Alpha Canis Majoris, Sirius) binary star components are spectral class A1V white star and a white dwarf Alpha III, Alpha V Canis Major constellation, Federation space, visible from Sol (8 light-years distant)
Alpha Aldiss star system unknown none known in or near Federation space
Alpha Andromedae (Delta Pegasi) binary star two stellar masses Alferaz, Hajj Andromeda constellation, visible from Sol (97 light-years)
Alpha Aquilae (Altair) singular white star, spectral class A7 Altair III, Altair IV, Altair VI Aquila constellation, visible from Sol (16 light-years), near 61 Cygni (9 light-years) and Ross 154 (10 light-years)
Alpha Arietis (Hamal) singular spectral class K2 Hamal IV Aries constellation, near Alpha Trianguli (8 light-years), visible from Sol (66 light-years)
Alpha Aurigae (Capella)
Alpha Boötis (Arcturus, Hokule'a) singular orange star, spectral class K Arcturus IV Boötes constellation, visible from Sol (36 light-years), near Zeta Herculis (21 light-years) and 61 Ursae Majoris (22 light-years)
Alpha Canaris (Alpha system, Alpha Canis Majoris, Sirius) binary star components are spectral class A1V white star and a white dwarf Alpha III, Alpha V Canis Major constellation, Federation space, visible from Sol (8 light-years distant)
Alpha Canis Minoris (Procyon)
Alpha Carinae (Canopus)
Alpha Centauri (Rigil Kentaurus) trinary star system
Alpha Ceti (Ceti Alpha, Menkar)
Alpha Chamaeleonis
Alpha Circini
Alpha Cygnus
Alpha Draconis binary star spectral class A0III (primary), red giant (secondary) location of a quantum filament Draco constellation, visible from Sol (300 light-years)
Alpha Epsilon Tauri singular white dwarf 6 planets Taurus constellation, within Palmyra Nebula
Alpha Eridani (Achernar)
Alpha Fornacis
Alpha Geminorum (Castor)
Alpha Gruis
Alpha Herculae (Rasalgethi)
Alpha Hydri
Alpha Hydros Alpha Hydros V Federation space, near Beta Hydros
Alpha Indi
Alpha Kiriki
Alpha Leonis (Regulus)
Alpha Lyrae (Vega)
Alpha Majoris
Alpha Mensa singular spectral class G5V Alpha Mensa V Mensa constellation, visible from Sol (33 light-years), near Zeta Reticuli (13 light-years)
Alpha Monocerotis
Alpha Omega
Alpha Onias
Alpha Orionis (Betelgeuse)
Alpha Ortelina
Alpha Persei (Mirfak)
Alpha Pictoris
Alpha Piscis Austrini (Fomalhaut)
Alpha Prime
Alpha Proxima system Alpha Proxima II near Proxima Centauri
Alpha Scorpii (Antares)
Alpha Tauri (Aldebaran)
Alpha Trianguli binary star spectral class F6IV (combined) location of Starbase 310 Triangulum constellation, near Alpha Arietis (8 light-years), visible from Sol (63 light-years), in Federation space near the Cardassian Demilitarized Zone
Alpha Ursae Majoris (Dubhe)
Alpha Varangis system none known near Klingon Neutral Zone
Alpha Virginis (Spica)
Alpha Volantis
Alpha Zion
Alphax
Altair (Alpha Aquilae) singular white star, spectral class A7 Altair III, Altair IV, Altair VI Aquila constellation, visible from Sol (16 light-years), near 61 Cygni (9 light-years) and Ross 154 (10 light-years)
Amargosa system
Ammdon system
Androcus singular Astrad near Sol (within 25 light-years)
Annari star/system type A blue-white star Annari homeworld Delta Quadrant, near Kraylor, Maldor ST reference: Star Charts; VOY episode: "Nightingale"
Annobon singular none known near Sol (within 25 light-years)
Anrak
Antares (Alpha Scorpii)
Antaria star/system type G yellow star Antarian homeworld Delta Quadrant, near Aksani, Imhotep, Chessu ST reference: Star Charts; VOY episode: "Drive"
Antos system type G yellow giant Antos IV Alpha Quadrant ST reference: Star Charts; FASA RPG module: The Federation
Arakis binary star type F white star primary; type A blue-white star companion Arakis Prime Delta Quadrant, near Nekrit Expanse; Garan, Tak Tak systems ST reference: Star Charts; VOY episode: "One Small Step"
Arbuk star/system Delta Quadrant VOY novel: Incident at Arbuk
Arcanis Majoris
Arcturus (Alpha Boötis, Hokule'a) singular orange star, spectral class K Arcturus IV Boötes constellation, visible from Sol (36 light-years), near Zeta Herculis (21 light-years) and 61 Ursae Majoris (22 light-years)
Arehaz (Borg system) star/system Borg Prime (fm. planet Arehaz); Borg Unicomplex Delta Quadrant ST reference: Star Charts; ST - Destiny novel: Lost Souls
Argelius A
Argelius B (Rho Magnin)
Argala star/system type A blue-white star Argala homeworld Delta Quadrant, near Nyria, Nasari ST reference: Star Charts; VOY episode: "Displaced"
Arken
Arrithea star/system type K orange star Arrithean homeworld Delta Quadrant, near Garenor, Kradin-Vori ST reference: Star Charts; VOY episode: "Revulsion"
Avery star/system type A blue-white star Avery III Delta Quadrant, near Komar Nebula ST reference: Star Charts; VOY episode: "Faces"
Azati Prime singular red giant Four planets and a satellite grid within Delphic Expanse
Azha (Eta Eridani) singular spectral class K0 none known Aldebaran sector, Eridanus constellation, visible from Sol (121 light-years)
Azraga
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