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Tarsus IV, or Tarsis IV, was the fourth planet in orbit of the Tarsus star system, at coordinates 3.89N 3.11E, located somewhere in the space of the galaxy's Alpha or Beta Quadrants. It was a class M planet.

History and specifics

In the 23rd century, Tarsus IV had become home to a Federation agricultural colony. The colony was founded by Earth-Romulan War veterans seeking a more peaceful life in the late 22nd century. The world became part of the United Federation of Planets after its government, a technocracy, was formed. (FASA RPG module: The Federation, ST reference: Federation: The First 150 Years)

By the 2240s decade, Tarsus IV was home to 8,000 inhabitants. A significant part of the population was comprised of colonists that had been evacuated from Epsilon Sorona II following a disaster on that world. Most of the colonists lived in or near the capital of New Anchorage, however there were other settlements on the planet. These settlements included a small coastal village which featured a beach resort that was popular with residents and visitors. (DSC novel: Drastic Measures)

In the year 2246, a mutagenic virus struck the crop plants being grown on the planet's surface and a famine ensued. Only having food supplies for half the colony's inhabitants, Governor Kodos had the other half put to death, in what became known as the Tarsus IV Massacre. (TOS episode & Star Trek 1 novelization: The Conscience of the King; TOS - Enterprise Logs short story: "Though Hell Should Bar the Way"; TOS novel: Academy: Collision Course)

Upon the arrival of the USS Enterprise, chief medical officer Sarah Poole-April was quickly able to isolate and cure the fungal infection. Following the massacre, Starfleet offered to evacuate any survivors who wanted to leave, but the vast majority of colonists elected to remain on Tarsus IV and rebuild the colony. Having managed to survive, Kodos assumed the identity of his aide Ian Galloway and slipped away on a transport. (DSC novel: Drastic Measures)

By reference stardate 2/2306.01, the world had a population of 2.23 billion individuals of various races and cultures, and the government was a full-status colonial member of the Federation. (FASA RPG module: The Federation)

In 2268, Captain Kirk stated in a log entry that he and his team were returning from a mission to Tarsus IV, which had been offered membership in the Federation. However, this was most likely an error, as it was later stated that they had gone to Tarsus II. (TOS comic: "Day of the Inquisitors")

Beginning in the 2270s or 2280s, Tarsus IV used the Miranda 1 space station laboratory for biological studies. (FASA RPG module: Regula-1 Orbital Station Deckplans)

When the virogen plague spread across a number of Federation planets in 2372, Tarsus IV was among the first worlds stricken, and the colony was evacuated. The following year, a hidden Symmetrist base was discovered, from which they had launched the plague. (ST novel: Avenger)

In the Kelvin timeline, the colony was attacked in 2246. This information was used in the fictional biography of "John Harrison", where he survived but his parents had not. (TOS video game: Star Trek App)



planets visited by the USS Enterprise (NCC-1701) (2243-2264)
Robert April's command (2243-2251) EarthRomulan planetoidTarsus IVFaramondAlpha Tau IVGandarShakirVulcanUsilde
Christopher Pike's command (2251-2264) EarthGS391AretaMagefferus IIIPharos siteworldRigel VIITalos IVJupiterCalligarGamma Gemini IVDarien 224PrairieNeyda PrimeLiriaJubalTheta KalybAlgol IITemaziAronniaDeverniaCorinthia VIICypria IIIBeta TrilochusKalajia VIIEridiosSusquatanePragine 63Bardeezi Prime


According to a computer image (seen here) created for the ENT episode: "In a Mirror, Darkly", Hoshi Sato and Takashi Kimura married lived on Tarsus IV, where they had a family, until they were executed in the Tarsus IV Massacre. However, an alternative image not mentioning their deaths was used instead (seen here), rendering these events as only a possible fate for the characters.

Appearances and references

mirror universe

other universes

External link