Multiple realities
(covers information from several alternate timelines)
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This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.

Tau Ceti was the primary of a planetary system located approximately eleven light years from Sol. (TNG: "The Naked Now", production art)

According to Doctor Beverly Crusher, CMO of the USS Enterprise-D, a planet in this system was the homeworld of the The Traveler's species. (TNG: "Journey's End")


When the universal translator on the USS Discovery malfunctioned, one of the many languages the system translated verbal and written displays into from Federation Standard was Tau Cetian. (DIS: "An Obol for Charon")

Prior to stardate 5718, the USS Enterprise, under the command of Captain James T. Kirk, engaged and defeated a Romulan vessel near Tau Ceti, using the Cochrane deceleration maneuver. (TOS: "Whom Gods Destroy")

In Starfleet Academy's Kobayashi Maru scenario, in 2285, Amber on Tau Ceti IV was named as the home port of the tanker/transport Kobayashi Maru. (Star Trek II: The Wrath of Khan)

In 2293, the location of Tau Ceti in the Milky Way Galaxy was named in a star chart that was in Captain James T. Kirk's quarters aboard the USS Enterprise-A. (Star Trek VI: The Undiscovered Country, production art)

In 2328, this was the home for the Tau Ceti Deep Space Station. (TNG-R: "Inheritance")

Some time before 2348, Jean-Luc Picard first met Walker Keel at an exotic bar on Tau Ceti III. Some time after this Keel introduced Jack Crusher to Beverly Howard. (TNG: "Conspiracy")

In 2358, the father of Kathryn Janeway, Vice admiral Janeway, died under the polar ice cap of Tau Ceti Prime. (VOY: "Coda")

In 2364, the location of Tau Ceti was named in a star chart of a stellar neighborhood with Sol at the center. This chart was stored in the USS Enterprise-D library computer. Later that year, the chart was scanned by Outpost 63. (TNG: "The Naked Now", production art; TNG: "The Last Outpost")

In 2155, in the mirror universe, Tau Ceti was the system in which the Terran Empire lost twelve ships in a battle against alien rebels. Propaganda had spread that this was a major victory for the Terran Empire, when in fact it was a sign they were losing. (ENT: "In a Mirror, Darkly")

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Background information Edit

Tau Ceti is a real star, which due to being a solar twin that at less than 12 light years is also very close has been a very popular star in science fiction.

The chart naming stars within 20 light years of Sol was drawn by Rick Sternbach for the Star Trek Spaceflight Chronology in the late 1970s. Found on page 77, this chart showed Earth commercial and exploration routes after the use of warp drive began. Tau Ceti was the destination on an exploration route. According to the Spaceflight Chronology, the UNSS Bonaventure, under the command of Captain Hadrian Huckleby, began Earth's warp drive era with a trip to Tau Ceti four years after the first successful demonstration of warp technology.

In TNG: "Where No One Has Gone Before" and TNG: "Remember Me", The Traveler was also said to be a native of Tau Alpha C, suggesting Tau Alpha C was located in the Tau Ceti system.

According to Star Trek: Star Charts (p. 44) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the Kaferia (Tau Ceti) system was located in the Alpha Quadrant. The primary was a G-class star. In the late 24th century, this was a Federation system, with Tau Ceti III listed as a member.

According to the Star Trek Encyclopedia (4th ed., vol. 2, p. 375), the Tau Ceti system was some eight light years from Sol.

Apocrypha Edit

According to the novel Enterprise: The First Adventure, Tau Ceti was located along the Romulan Neutral Zone and the inhabitants of Tau Ceti II were widely regarded as possessing great mineralogical expertise, using sapphires as the local currency.

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