Casmus III was a planet located somewhere in the galaxy's Alpha or Beta Quadrants, the third planet in orbit of the Casmus star system in Federation space.
History and specifics
By the late 23rd century, in the 2280s decade, Casmus III was orbited by Starbase 42. The starship USS Enterprise-A traveled to the planet in the year 2287 on its first mission following the visit to Sha Ka Ree, on the way to the Chronian system. (TOS comics: "The Return!", "The Sentence")
- While not mentioned by name, the TOS - Errand of Vengeance novel: River of Blood and TOS - Errand of Fury novel: Seeds of Rage state that Starbase 42 orbits a planet on which dilithium had been found.
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Appendices
Connections
| planets visited by the USS Enterprise (NCC-1701-A) (2286-2293) | |
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| 2286 | Earth • Luna • wishing planet • Rontelm • Gamma Trianguli VI • Briar Patch • Christofi IX • Vulcan • Sector 9 Romulan colony • Miraud • Triaminus IV • Endicor • Omicron Ceti IV • Chapin I |
| 2287 | Nimbus III • Sha Ka Ree • New Ketira • Skylord planet • Casmus III • Chronian III • New Brinden • Tau Gamma II • Earth • Yko • Temaris IV • Cetacean Probe homeworld • Vega IX • Calligar homeworld |
| 2288 | Uninhabited chroniton-discovery world • Datugad • Venus • Oyolo • Pavak • Sumno • Claneia I • Karimea • Kristenian world • Rimbor • Needra • Tyrion Defense Zone • Starbase 29 • Dinar IV • Sandar IX • Lerik IV • Skellen III • Horan system • Javik VI • Kurat I • Earth • Sigma Iotia II |
| 2289 | Arbutus VIII • Earth • Pilkor III • Metaga V • Zuyna • Pallas 14 star system • Tree of Life planet • Sumellian-adjacent star system • Sumellian homeworld • Deneva • Quatrin Alpha • Quatrin Beta |
| 2290 | Earth • Tabuka III • Tabuka IV • Epsilon Kitaj • Starbase 99 planet • Arnebius IV • Alpha Darwin • Kondo Nebula • Mardelva • Nirobi III • Thevos • Casmus III • Largo star system • Theata Leonis • Gateway • Calufrax IV • Babel • Gribbin II • Bupahr mining colony • Gamma Kestra • Nara • 'Gi • Zantak Prime • Kreth |
| 2291 | Devidia IV • Musgrave IV • Varba II • Varnex • Mestiko • Tiranax • Earth • Kaskadia IV |
| 2292 | Osor Prime • Hiberna Base • Earth • unnamed asteroid belt |
| 2293 | Rura Penthe • Khitomer • Faramond • Vulcan • Qo'noS • Patelva • Freelan • Pacifica • Rigel V • Duparre Asteroid Belt • Yquitra • Yko • Earth • Alpha Gederix IV • Prestor V • Sigma Draconis Sector • Chal |
| Casmus star system | ||||||||||||||||||||||||||||||||||||||||||||||
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| Casmus primary star: Casmus I • Casmus II • Casmus III (Starbase 42) |  
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