Alpha Centauri IV

Alpha Centauri IV (commonly known as Velestus, Centaurus or Al Rijil IV) is the fourth planet in the Alpha Centauri star system, orbiting the primary binary pair of stars, Rigil Kentaurus and Quindar. This world is class M and is home to humanoid inhabitants, including a thriving Federation colony started by Human settlers and other Centauran cultures. (ST reference: The Worlds of the Federation; TOS novels: Crisis on Centaurus, Time for Yesterday)

Alpha Centauri IV's most distinguishing celestial feature is its series of rings. It has two small moons, Nykos and Tharon, which are home to mining colonies. The planet's atmosphere is an oxygen-nitrogen mix with pressure close to Earth normal. Seventy percent of the planet is covered with water. There are hundreds of small islands scattered across the surface. The average temperature is 26.6° C.

Widely varying solar radiation levels, tectonic stress and other problems beset the planet driving the Alpha Centaurans to develop terraforming technology early in their history. Their scientists believe that, over ten million years ago, a third moon orbiting the planet was ripped apart by tidal forces as it descended too close to the planet, producing a rare ring system around the inner planet.

The population of Alpha Centauri IV in the early 2360s was around 3 billion people, plus a small human and Vulcan population. Many of the humans living on Alpha Centauri are descended from the first immigrants from Earth, dating all the way back to the 21st century. The capital city is Tarola'n, with features the famous Monument of Visions Art Museum.

Alpha Centauri is a major exporter of art and is a popular tourist destination. Their holographic art is highly collectable. Alpha Centauran artists are sought out to design specialized holodeck programs.

Two native species have become well known to Federation visitors. The kerra'vein are canine-like animals similar to huskies and the lala'vel, a small winged creature that closely resembles the Terran bat. (Last Unicorn RPG module: Planets of the UFP)

Recent novels state that Alpha Centauri was uninhabited by a native species, and that it was primarily a human colony. Most current Star Trek novels use this premise. Star Charts reveals that the human colony of Alpha Centauri was a founding member of the Federation in 2161. Early mentions of the Centauran civilization in ST reference: The Worlds of the Federation revealed they were thought to have been transplanted from Earth by the Preservers. The fact of their Human origin could be used to rationalize the fact that later sources treat the system as a Human colony.

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Continents: Ash'ayn • Avara • Bastal • Farain • Great Oreas • Kesta'al • Knu'fyr • Naroth • New America • New Asia • New Europe • Nyria • Shalaven • Tedimah'k

Bodies of water: B'etha'ein Sea • Farragut River • Ral'einn Sea • Shima'ran Sea • Varan Sea • Varath Sea

Landmarks: Columns of Ineti • Mount Fera'an • Leroth Islands • Nyrian Pyramids • Garrovick Valley

Cities and settlements: Aquinasville • Dora'an • Torus • Tarala'n • McIverton • Narva • Ku'ltan • Shadra • Lamenk • Caladia • Vehaxein • Gorek • New Athens • Second Try • Gregory's Landing • Chandrik

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Alpha Centauri star system

Alpha Centauri A (primary) • Alpha Centauri I • II. Behemoth • Alpha Centauri III (1 moon) • IV. Centaurus (2 moons) • Alpha Centauri V (2 moons) • Alpha Centauri VI (8 moons) • VII. Al Rijil • Alpha Centauri VIII • Alpha Centauri IX • Alpha Centauri X • Alpha Centauri XI • Alpha Centauri XII • Alpha Centauri XIII

Alpha Centauri B • Olson • II. New Montana • Perry • III. Lang • IV. Kent

Proxima Centauri • Proxima Centauri II • Proxima Alpha • Proxima Beta • Proxima Maintenance Yards

planets visited by the USS Enterprise (NCC-1701) during Captain Kirk's initial five-year mission (2265-2270)
various	Aprilia III • Capory • Garrus • Rheel • Triangularis III
2265	Earth • Draxis II • Tally • Gamma Alpha V • Pollux II • Starbase 8 planet • Sector Vega 6 planet • M-155 • Archernar IV • Dimorus • Mandylion V • Tendar IV • Mestiko • Alpha Ortelina VII • Arronus VII • Aldebaran III • Delta Vega I • Starbase 12 • Vellurius • Earth • Globular planet • Norus • Junkyard planet • Palnak's planet • Santar • Nova XIII • Zeltok • Korak • the Traveler's homeworld • Dukar • Orthoo • Algenib II
2266	Crucial-3 • Vultra • Robots' planet • Angoma • Mantis planet • Nuofo • Stai • Vrex • Balant planet • Zargot • Coltac • Rigel XII • Alfa 177 • M-113 • Psi 2000 • Tlaoli IV • Skur • Selkye • Taragon • Alpha 332 • Ynobe II • Ecnal • Raylo • Noriga • Alpha Proxima II • Kynardi • Argylus • Ominnus • Earth • K-G • Seggor • Fornia • Angira • Beta II • Neesan • Kujal • Luna • Bwuja • Fayo • Hercula • Earth • Kibo/Ndora • Nraka • Alpha 23-C • Oordon • Mobita • Jodarr • Quodar • Zarta • Floe I • Metamorpha • Inicrust • Morti • Terrellian II • Voodoo planet • Riza homeworld • Mila Xa • Krugar III remnant • Quaraxus • Arima • Mazda • Numero Uno • Beta Carinae • Exo III • 1324-IV • 7348-II • Tantalus V • Miri's homeworld • Planet Q • Benecia
2267	Taurus II • Makus III • Ximega II • Hydra Epsilon III • Perseus Arm planetoid • Yko • Tenkara • Salvum • Grotus • Varanu planet • Yko • Talos IV • Tekton • Rifas-L • Amusement Park planet • Heitius VII • Centaurus V • Fomalhaut V • Emben III • Cynur IV • Tyrtaeus II • Gothos • Beta VI • Theta VII • Ramedes III • Cestus III • Metron planet • Alva • Lazarus's planet • Galaxy Zekbran planet • Cygnet XIV • Earth • Canara • Beta III • Draqqana • Iach'tu Prime • Eminiar VII • Ceti Alpha V • Gamma 400 • Vartax • Dak-Alpha • Thark • Morkol • Timshel • Omicron Ceti III • Janus VI • 7348-II • Chandra IV • Organia • Angrena • Yko • Earth Colony II • Gateway • Earth • Deneva • Janvar • Zentar • Zettin • Diad II • "the Frontier" • Modala • Lado • Gamma Xaridian • Elsinor H-25 • Starbase 10 • Beta Mariotia III • Vega III • Tondus • Tekkor • Carnak • Pyris VII • Earth • Pentam V • Gamma Canaris N • Vandros VII • Nukolee • Styra • Lurota • Oorego IV • Giant Brain asteroid • Otari II • Gateway • Isis III • Not Eden • Maaba S'Ja • Capella IV • Pollux IV • Vulcan • Mestiko • Nador • Tactis II • Beta Nirobi II • Phygma IV • Outpost Omega-70 • Tau Gamma IV • M-370 • Argelius II • Merope IV • Malur • Eulus • Donico II • Gamma Trianguli VI • Masaba • Lekythos • Tyrtaeus II • Shroud IV • Halka • Ixtolde • Gamma Hydra IV • Calydon • Belmara IV • Turan Tot Narut's planet • Gamma Canaris N • Taunus • Planet 656 • Beton III • Sklurr • Karr • Graktan • Plixes • Andrius • Mudd • Earth • Aneher II • Wezonvu • Nalaing • Magna Roma • Bavarya • Neolithia • Mythra • Rimillia • Babel • Gamma Canaris N • Vulcan • Nisus • Certax • Narnel's World • NGC 667 • Neural
2268	Fornax II • Gamma II • Triskelion • Rudimon • Argus X • Tycho IV • Centaurus • Usilde • Theta VII • Signi Beta • Tautee system • Vulcan • Beta Canzandia III • Mevinna • Sigma Iotia II • Xanvia • Xoxxa • Inquisitor planet • Beta Reticuli • Delta Vega • Nalogen IV • Delta Vega • Delta Canaris IV • Alnath II • Ammdon • Arret • Ekos • Eeiauo • Sivao • Kahless • Omega IV • Earth • Theta Kiokis II • Elas • Troyius • Elethia • Alsand • Kos • Tau Delta IX • Amerind • Starbase 14 planet • Andru 4/6 • Tranquility VII • Minos V • Earth • Exo III • T'nufo • Minos V • Eando 375 • Wrigley's Pleasure Planet • Exo III • Tortuga VI • Taos IV • Triacus • Marcos XII • Wokkle III • Cawley IV • Makon III • Kala • Lowaria • Dreamers' planet • Sigma Draconis VI • Moauv • Pomplance • Ribol II • Marpaplu • Direidi • Medusa • Elcidar Beta III • Minara II • Octavius IV • Beta Cabrini • Pegasus IV • Careta IV • Beta XII-A • Platonius • Izell • Earth • Scalos • M-317 • Beta Aurigae III • Sanoora host planet • Rhinegelt • Kalandan outpost • Brellian IV • Prastor • Distrel • Tttnicktttnor • Ariannus • Cheron • Elba II • Sanctuary • Gideon • Tau Omega IV • Tau Omega III • Kolya
2269	Memory Alpha • Merak II • Ardana • Pollux V • Avalon • Balkos III • Nova Atar III • Tarnak II • Meta IV • Vesbius • Janus VI • Pollux II • Leora IV • Beta Niobe III • Mygdalus III • Waasertla • Centaurus • Raga's Planet • Eden • Theta Tau V • Holberg 917G • Lothor • Tau Beta IV • Excalbia • Sarpeidon • Camus II • Duwamish • Ephrata IV • Sigma Niobe II • Gateway • Krasni's Folly • Vestalan • Maltos IV • Organia • Kyros • Nesta • Anomaly • Academy • Yko • Arachnae • Babel • Epsilon Delta IV • Heartland • Memory Prime • Talin IV • Web of Worlds • Syhaar Prime • Gateway • Mantilles • Valeria • Taurus II • Kinshasa • Amusement Park planet • Motherlode • Megas-Tu • Terratin • Sherman's Planet • Verdanis • The Strand • Aarak III • Phi XI • Ur homeworld • Viden • Gobi III • Pacifica • Gralafi • Loren V • Argo • Waycross • Dengella II • Perry • Delta Gamma IV • Trefolg • Lloyd Zeta-9 • Sigma Iotia II • Hesperides I • I'Qos • Circe V • Andoria • Trellisane • Beta Castelli • Holox • Boaco VI • Juram V • Vancadia • Chyrellka • Veletus V • Patria I • Pelos
2270	Janus VI • Phylos II • Vedala asteroid • Dramia • Dramia II • Arret • Lactra VII • Boqu II • Delta Theta III • Pandro • Briamos • Yko • Belarius IV • Velat Nol/R-836 II • Gelladorn/R-775 I • DT-262 • Belarius IV • Cenotaph • Emilla II • Vehtora IV • Anabarra colony • N'cai • Muldoon • Coridan III • Akladi • Mudd • Kuban • Sarai • Starbase 7 planet • Stella Mudd's planet • Mudd • Taygeta V • Okeanos • Beta Omicron Delta III • Yoondri • Gateway • Zeta Gibraltar • Andros • Yusub • Artemys 314 • Kwettir • Polymax VIII • Hollow Planet • Earth (alternate) • Gateway • Sycorax • Bira III • Njura • Omne's planet • Voran • Razar • Mercan • Aleriad • Aritani • Yalbo • Vulcan • Hoshan planets • Tanis • Aragos planet • Aleph Prime • Aleph III • Antos IV • Takoi homeworld • Earth • Denebia • Veneu II • Gribbin II • Klondike VI • Isitra Zero • Pelos • Archernar IV • Talos IV • Pillagra/R-855 • Earth • Starbase 12 • Tomarii

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