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Qo'noS: Misc



Up to date as of February 02, 2010

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Qo'noS, as it appeared in the mid 22nd century.
Full name: Qo'noS
Alternate name: Kling
Classification: Class M
Affiliation: Klingon Empire
Location: Beta Quadrant
Moon(s): Praxis (destroyed 2293)
Dominant Species: Klingons
Warp Capable: 930 AD
Capital: First City
For the mirror universe counterpart, see Qo'noS (mirror).

Qo'noS, also known as Kling, is the homeworld of the Klingon species and capital planet of the Klingon Empire. (TOS movie, novelization & comic adaptation: Star Trek VI: The Undiscovered Country)

In the novel The Final Reflection and the FASA role-playing game's supplement "The Klingons" (both by John M. Ford), the Klingon homeworld was given the name Klinzhai, which was used in some later works such as The IDIC Epidemic and Ishmael before being superceded by The Undiscovered Country.

The world orbits an orange bright subgiant (Type K1 IV) star and possessed two moons; Corvix and Praxis, the latter of the two is now remnants that circle the planet after it exploded. The planet itself possesses a single landmass that comprises the entire habitable surface. The terrain consists primarily of high, rocky mountains, jagged cliffs, and rivers of lava, which are the result of unstable tectonics. A greenhouse effect caused by the volcanic ash keeps the planet's surface warm and traps its oxygen-nitrogen atmosphere. The interaction of cold air over the ocean and extremely hot air over the continents gives rise to sizable storms; with no land on the planet's far side to halt their growth, the hurricanes the size of Earth's North America form over the sea and slam into the land like a sledgehammer. Visitors to Qo'noS find it difficult to move around in the high gravity (1.23G) and thick atmosphere causing fatigue among those who visit the planet. (ST reference: Aliens)

Out of the other five planets located wihin the system, Qo'noS is the only habitable M Class planet. Though it requires a certain level of technology in order to maintain the environment. (TOS video game: Starfleet Command)

This clashes with the information in Decipher's Aliens book which states it is the third world within a ten planet system.



500,000 years ago, what would be considered the "earlier recognizable Klingons" appear on Qo'noS. (ST roleplay module: All Our Yesterdays: The Time Travel Sourcebook)

The most significant change that occurred to Qo'noS was the destruction of its moon Praxis due to overmining. (TOS movie: Star Trek VI: The Undiscovered Country) The remains of the moon would form an asteroid belt around the planet which would remove any detection systems the Klingons had in place. Furthermore, the asteroid field resulted in frequent meteor showers raining on the planet below with the larger pieces crashing into the Klingon homeworld fifty years after Praxis' explosion. This would be a dangerous event for the Klingon homeworld and the species itself as it resulted in a slow death without assistance from the Federation. (TOS novel: Sarek)

In 2376, this was listed as the host location of a current or past marathon. (New Worlds, New Civilizations short story: "The Footfalls of Tradition")

In 2381, the Borg bombarded Qo'noS from orbit killing a total of 77 million people. (ST - Destiny novel: Lost Souls)


the planet Qo'noS
cities and settlements An'quat • D'Takka • Emperor Kahless Military City • First City (Old Quarter) • Khal • Khinah • Kopf's CliffKrennla (Baldi'maj DistrictKenta District) • Kri'stak CityM'riiah • Navarath • NarOs • NovatQam-Chee • Qa'yarin • Quin'lat • Saqwa' • Serra'nob • Szlar'it • T'chariv • Tisur • Tolar'tu • Tong Vey • Ya'Koraq Klingon emblem image.
landmarks and institutions Combat Testing CenterDu'HurghFederation Embassy on Qo'noS • Flame Cliffs of Kutabi • Goqlath Castle • Great Domes of Qo'noS • Great HallHall of HeroesHall of HonorKilgore Landing BayKlingon Defense Force Command HeadquartersLukara EdificeTactical CollegeTaklar TempleTemple of MolgarTemple of RogaxTengchaH JavThree Turn BridgeTlhIng Veng laboratoryVulcan Cuisine
nations and provinces Ketha • Khlaru • Mekro'vak
geography Almron Preserve • BIng'av Mountains • Caves of Kahless • Caves of No'Mat • Chak'okCybriss ValleyDuHoH DesertFesh'rin Hills • Kutabi • Gharhuil • Hamar Mountains • HatlhHurgh • Jungles of Kintak • Kang's Summit • Kannaga Mountains • Karak Summit • Kartade Forest • Ka'Toth plainsKetha LowlandsKol'VatKri'stak volcano • Mount Batlhqui • Mount Vor • Nagh Be'nImey • Ona'ja'bur • Qimpo • Qo'dung Mountains • Qora Forest • Qualnagh Mountains • ShranaSutor Mountains • S'zlach • Tiv'ranisch • Tl'Gekh • TlhIngtuj Mountains • Tor'aqUhq'ra' Mountains
bodies of water BIQ'a'bIng OceanBIQ'a'dung OceanChu'paq Sea • Sea of Gatan • HoSghaj RiverLake Lursor • Lake Lusor • NIHbIQ'a' OceanPoSbIQ'a' OceanQam-Chee River • Skral River

Natural History




Alternate Reality

In an alternate reality where Bajor and the Bajoran wormhole remained under Cardassian control, the Dominion formed and alliance with the Cardassian Union and targeted Qo'noS in a Jem'Hadar attack. Originally over 100 Jem'Hadar ships left Cardassian space for Qo'noS. While only 40 ships made it to the planet, they were still able to do considerable damage to the Klingon Defense Forces. As the battle raged, five Jem'Hadar ships focused their attention on the planet, entered the atmosphere, and bombarded its surface. Billions were killed, including Worf's brother Kurn who sat on the Klingon High Council.

By this time, the USS Defiant under the command of Worf had entered the system and begun to attack the Jem'Hadar fleet, but it was unable to stop the planetary bombardment. Scans of the surface revealed that the First City had been entirely destroyed and that only a few thousand survivors remained on the planet.

With news that an additonal 20 Jem'Hadar ships were approaching the system, Worf ordered the Defiant into Qo'noS's sun with plans to initiate a warp core breech that would then cause a supernova, destroying the system and the the Jem'Hadar fleet. The attack and destruction of Qo'noS left the Klingons significantly weakened to the point that the remaining two Founders trapped in the Alpha Quadrant no longer considered the Klingon Empire to be a power in the region. (Myriad Universes novel: A Gutted World)

External link

This article uses material from the "Qo'noS" article on the Memory-beta wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

ST Expanded

Up to date as of February 07, 2010

The Star Trek Expanded Universe Database is for fanon and related content. See for the canon Star Trek wiki.

For the mirror universe counterpart, see Qo'noS (mirror).
Star system: Klingon
Class: M
Surface: Moderate

Qo'noS (Anglicized Kronos) is a Class M planet, homeworld of the Klingons and capital of the Klingon Empire.


Astronomical data


Qo'noS is about four days away from Sol at warp 4.5, putting the planet about 1.4 lightyears from Earth.

This fact seems questionable, considering that the nearest star to Earth is Proxima Centauri, which is 4.22 lightyears away. Also, an evacuation of the planet was being planned in 2293, which would have altered the distance between Earth and the Klingon Homeworld.


  • Qo'noS
  • The Homeworld
  • Klinzhai (FASA RPG, Star Trek VI: The Undiscovered Country)
Surface view, 2151

Further information


In 2293, a nearby moon, Praxis, exploded due to an accident involving over-mining. The subspace shockwave sent out by the explosion caused damage severe damage to Qo'noS's ozone layer, forcing planning for the evacuation of the planet. (Star Trek VI: The Undiscovered Country)


Qo'noS has a single land mass and a vast ocean. The planet also has a severely titled axis, which causes extreme weather shifts and wild seasonal changes. (DS9: "Once More Unto the Breach")


The capital of Qo'noS is First City. Other cities include Qam-Chee, Quin-lat, and Tong Vey.




It remains unclear if the Qo'noS seen in ENT: "Broken Bow, Part One" is the same planet as seen in TNG and DS9 episodes, as the evacuation of the original Qo'noS was never seen on screen, but only mentioned at the 2293 Khitomer Conference.

This article uses material from the "Qo'noS" article on the ST Expanded wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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