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Xenon is a planet in the Hugopata Quadrant. It is the most mysterious planet in the galaxy with a thousand terrible legends surrounding it.[1] It has earned the reputation of being a destination of no return, as proven by the thousands of shipwrecks left by those who tried to navigate through the asteroids and perpetual darkness.


The combination of gases in Xenon's outer atmosphere gives the planet an intense green glow.[1][2]

Xenon is home to some of the rarest plant life in the galaxy - much of it planted by Azmuth himself.[1][3]


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Xenon's landscape

Azmuth chose Xenon as a way to escape the "mayhem" of the rest of the universe and to be able to continue his work in peace. He and Myaxx created a device that absorbs all the light in the vicinity, thus creating perpetual darkness around Xenon. That, combined with the large asteroids surrounding Xenon, force ships, who attempt to come close, to crash blindly into the asteroids. Azmuth created a homing beacon in the Omnitrix so that if it is ever in range, the Omnitrix will lead the user through the dark oblivion to get to Xenon.

Notable Inhabitants

Non-native species

Notable Visitors


Ben 10

Season 4


Xenon was named after Xenon, a noble gas in the periodic table.

The name is also a nod to the fictional planet Krypton (Superman's home planet), which is itself named after a noble gas.


  • The Hugopata Quadrant is an unchartered section of space because no ships can survive long enough to explore it.[1][4] This is similar to the Bermuda Triangle.
  • Azmuth's compound is built from one of Xenon's strange but natural formations.[1][5]


Celestial Bodies
Seen Planets
AldabraAnodyneAnur TransylAranhaschimmiaAugstakaCoda CodaEarthEncephalonus IVGalvan PrimeIncursean HomeworldKhorosLepidopterraMikd'ltyPantophagePeptos XIPeptos XIIPetropiaPisccissPlutoPrimusRevonnahT.K.Terminus IIITerraexcavaTurrawusteVilgaxiaXenon
Unseen Planets
AeropelaAndesiteAnur G'rrnayAnur KhufosAnur MillganAnur OrmerowAnur PhaetosAnur VladiasAppoplexiaArburiaAul-TurrhenChalybeasChordelta Star World BetaColeop TerraFlors VerdanceGilli-Perambulous PromenadeHathorJ'HambaH'JKeplorrKinetKiusanaKylmyysLewodaMethanosMolluskusNemunimos IVPattersoneaPolyominusPrypiatosRinga MorrSangerosiaScalpascSightraSotoraggTechadonTerradinoTesslosThalassiaViscosiaVulcanVulpinX'Nelli
Sapient Planets Satellites Locations in Space
Galilean (Gravattack, Orbit Man)Evolved Galilean (Ultimate Gravattack) Galvan BLuna LoboMoonMyceto Great Vault of SulkisEdge of the Galaxy IncarceconNull Void IncarceconPerplexahedronSpace Cafe
Stars Star Systems Galaxies
Pyros Anur SystemGalvan Star System Andromeda GalaxyMilky Way
Other Celestial Bodies
Cosmic StormsForge of CreationNosedeen QuasarTeslavorr
Retconned Non-canon
ChroniaOsmosOsmos V CorundorIgnisLignumMor' OtesiPoiana LüncasZvezda