Tycho City is the capital city of the Lunar colonies on Luna. The city had a self-contained atmosphere and artificial gravity system that enabled its citizens to live a normal life. (ST movie: Star Trek: First Contact, ST reference: Star Charts)

Dorian Collins was born in Tycho City in the 2350s. After the destruction of the USS Valiant she returned there. (DS9 episode: "Valiant", DS9 short story: "Dorian's Diary")

William Riker visited Tycho City in 2355. (ST - The Lost Era novel: Deny Thy Father)

In 2383, Esperanza Piñiero had made arrangements for Federation President Nanietta Bacco to visit Tycho City as part of a diplomatic tour. President Bacco later sent Piñiero instead, although the arrival of the RIS Enderavat at Earth carrying Fleet Admiral Devix of the Romulan Imperial Fleet and Praetor of the Romulan Star Empire Gell Kamemor scuppered the plans. (ST - Typhon Pact novel: Raise the Dawn)

Alternate universesEdit

In one alternate universe, Elizabeth Cutler lived in Tycho City until her death at age 147 in 2264. (Star Trek: Myriad Universes novel: A Less Perfect Union)

In another alternate universe where the Klingons conquered Earth, Tycho City was destroyed during the invasion. Will Riker was a boy at the time and watched the flashes or explosions of the lunar city being destroyed from Earth. (The Last Generation: No Cure For That)


the moon Luna
cities and settlements Aldrin CityArmstrong CenterArmstrong CityCollins AmphitheatreCopernicus CityLuna CityLunar One ColonyNew BerlinNew ChicagoOceanviewTycho City UFP seal Seal of United Earth
landmarks and institutions Aldrin City Archives AnnexCollins AmphitheatreCopernicus Ship YardDisneymoonGoddard MoonbaseHadley Rill HospitalHiBeam Energies LimitedKashishowa StationLuna repair baseLunar Base 3O'Hare Rocket PortTranquility BaseTranquility ParkUniversity of Luna
geography Fra MauroLake ArmstrongLaserton NorthMare NubiumMare TranquillitatisOcean of Storms
bodies of water Lake Armstrong

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