108,561
edits
Changes
From Warhammer 40k - Lexicanum
The planetary images are sparse, take up the screen, and mess with page format
{|align=center border="1" cellpadding="5" cellspacing="0"
|-
|style=background:#4F4F4F align=center|'''Planet name'''
|style=background:#4F4F4F align=center|'''Segmentum'''
|style=background:#4F4F4F align=center|'''Notes'''
|-
|align=center|[[Accatran]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Homeworld of the [[Legio Destructor]].
|-
|align=center|[[Achlys III]]
|align=center|
|align=center|
|-
|align=center|[[Adrosi]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Agripinaa]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Albert IV]]
|align=center|
|align=center|
|-
|align=center|[[Alpha Primus (Forge World)|Alpha Primus]]
|align=center|Unknown<br>(just outside of [[Segmentum Solar]])
|align=center|
|-
|align=center|[[Altevfor]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Ammunheim]]
|align=center|
|align=center|
|-
|align=center|[[Amontep II]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Contested by [[Necron]]s
|-
|align=center|[[Angstrom]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Antasic IX]]
|align=center|
|align=center|
|-
|align=center|[[Antax]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Antioc]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Captured by [[Chaos]] forces
|-
|align=center|[[Anvillus]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Known for production of [[Warlord Battle Titan]]s of '''Mars-Alpha Pattern'''
|-
|align=center|[[Anvilus Nine]]
|align=center|
|align=center|Was captured by renegade [[Tech-Priest]]s of the [[Dark Mechanicus]] during the [[Horus Heresy]]. Its later fate is unknown.
|-
|align=center|[[Aphret]]
|align=center|
|align=center|
|-
|align=center|[[Appus IV]]
|align=center|
|align=center|
|-
|align=center|[[Arachnus (Forge World)|Arachnus]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Arcetri]]
|align=center|
|align=center|Now — [[Dead World]]
|-
|align=center|[[Arenxis Minoris]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Arl'yeth]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Artemia Majoris]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|Scene of the [[Hieronymite Heresy]]
|-
|align=center|[[Astaramis]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Artos-Rho IV]]
|align=center|
|align=center|One of the trio of Forge Worlds (named [[Deuterium Stars]]) which during the [[Great Crusade]] were the only ones who produced the [[Las-Impulsor]]s for [[Imperial Knights]] before M34. Overrun and destroyed during the [[Horus Heresy]].
|-
|align=center|[[Atanix Triumvirae]]
|align=center|
|align=center|
|-
|align=center|[[Atar-Median]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|
|-
|align=center|[[Avachrus]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Barnassus]] (former)
|align=center|
|align=center|Now — [[Dead World]]
|-
|align=center|[[Belacane]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Bellicos]]
|align=center|
|align=center|Swallowed whole by the [[Great Rift]].
|-
|align=center|[[Bellona (Moon)|Bellona]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Forge moon that orbits [[Nemeton]]
|-
|align=center|[[Beshic V]]
|align=center|
|align=center|
|-
|align=center|[[Beta Cornix]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Bheta-Decima]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Crashsite of the [[Space Hulk]] ''[[Gallowdark]]''
|-
|align=center|[[Bronta-Median]]
|align=center|
|align=center|Homeworld of the [[Legio Perennia]] [[Titan Legion]]
|-
|align=center|[[Byrrus Alpha]]
|align=center|
|align=center|
|-
|align=center|[[Cadamine]]
|align=center|
|align=center|Invaded by the [[Leviathan]] splinter fleet known as the [[Silent Murder]] during the [[Third Tyrannic War]].
|-
|align=center|[[Cadmon's Lock]]
|align=center|
|align=center|
|-
|align=center|[[Cahim II]]
|align=center|
|align=center|Invaded by the forces of [[Chaos]] sometime after the [[Great Rift]]'s creation.
|-
|align=center|[[Casiorix]]
|align=center|
|align=center|
|-
|align=center|[[Cavor Sarta]]
|align=center|
|align=center|[[Dark Mechanicus]] Forge World
|-
|align=center|[[Chaeroneia]]
|align=center|
|align=center|
|-
|align=center|[[Columnus]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|
|-
|align=center|[[Crucible-Omega]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|[[Dark Mechanicus]] Forge World
|-
|align=center|[[Cyclopea]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Also — [[Civilized World]]
|-
|align=center|[[Cyclothrathe]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|[[Chaos]] Forge World
|-
|align=center|[[Cypra Mundi]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Also [[Segmentum Fortress|Fleet Base]]
|-
|align=center|[[Cyraxus II]]
|align=center|
|align=center|
|-
|align=center|[[Daiamantus]]
|align=center|
|align=center|
|-
|align=center|[[Dantris III]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Daxxos]]
|align=center|
|align=center|Home to the [[Legio Naesseas]].
|-
|align=center|[[Deimos]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|Ancient moon of [[Mars]], now a sub-moon of [[Titan (Moon)|Titan]].
|-
|align=center|[[Delphi (Forge World)|Delphi]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Delphi IX]]
|align=center|
|align=center|
|-
|align=center|[[Demios Binary]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Diamat]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Diesos]]
|align=center|
|align=center|[[Dark Mechanicum]] Forge World
|-
|align=center|[[Dominica II]]
|align=center|
|align=center|
|-
|align=center|[[Driantum]]
|align=center|
|align=center|[[Chaos]]-held Forge World, that was invaded by the forces of the [[Indomitus Crusade]].
|-
|align=center|[[Duos]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Dykurnos VI]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Dynax Primus]]
|align=center|
|align=center|
|-
|align=center|[[Dynax-Abultra]]
|align=center|
|align=center|
|-
|align=center|[[Dynostix V]]
|align=center|
|align=center|
|-
|align=center|[[Ecovoria]]
|align=center|
|align=center|
|-
|align=center|[[Eontar]]
|align=center|
|align=center|Subservient to the greater Forge World of [[Voss Prime]].
|-
|align=center|[[Ermune]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|Occupied by the forces of [[Chaos]] by the time of the [[Sabbat Crusade]].
|-
|align=center|[[Estaban III]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Estaban VII]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Esteban VII]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Home to the [[Death Bolts]] [[Titan Legion]]
|-
|align=center|[[Eufrates II]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Governed by the Adeptus Mechanicus Explorator Cognisance Fleet. Lay-visitors are not allowed onto the surface.
|-
|align=center|[[Ferrovarum]]
|align=center|
|align=center|
|-
|align=center|[[Forge Polix]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|[[Dark Mechanicus]] Forge World
|-
|align=center|[[Forge World Thule]]
|align=center|[[Tempestus]]
|align=center|The heart of industry of the [[Caligari Sector]].
|-
|align=center|[[Fortis Binary]]
|align=center|[[Segmentum Pacificus|Pacficus]]
|align=center|[[Chaos]] Forge World
|-
|align=center|[[Fusiria]]
|align=center|
|align=center|One of the trio of Forge Worlds (named [[Deuterium Stars]]) which during the [[Great Crusade]] were the only ones who produced the [[Las-Impulsor]]s for [[Imperial Knights]]. Turned Traitor during the [[Horus Heresy]].
|-
|align=center|[[Galatia]]
|align=center|[[Ultima Segmentum|Ultima]] ([[Eastern Fringe]])
|align=center|
|-
|align=center|[[Gamanede]]
|align=center|
|align=center|[[Cadian 113th]] took the last stand on this planet
|-
|align=center|[[Gantz]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Forge moon and home to the [[Legio Praesagius]] [[Titan Legion]].
|-
|align=center|[[Gehn Quora]]
|align=center|
|align=center|Once lost to the Imperium, until the [[Adepta Sororitas]] brought it salvation in [[M37]]. In thanks, the Fabricator General of Mars had the relic [[Purgator Mirabilis]] restored for the Sororitas.
|-
|align=center|[[Gharani]]
|align=center|
|align=center|
|-
|align=center|[[Ghoulwright]]
|align=center|
|align=center|
|-
|align=center|[[Glasgow IV]]
|align=center|
|align=center|
|-
|align=center|[[Glenescrede Raptus]] (Destroyed)
|align=center|[[Pacificus]]
|align=center|Exploded during the [[Thirteenth Black Crusade]].
|-
|align=center|[[Glomus]]
|align=center|
|align=center|Occupied by [[Orks]].
|-
|align=center|[[Goralech]]
|align=center|
|align=center|Oribited by an Artificial moon called [[Pergamatros]].
|-
|align=center|[[Gorgonum]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Gorvallon]]
|align=center|
|align=center|Subservient to the greater Forge World of [[Voss Prime]].
|-
|align=center|[[Goth]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Graia]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Homeworld of the [[Legio Astramana]].
|-
|align=center|[[Grammachus Beta]]
|align=center|
|align=center|
|-
|align=center|[[Gryphonne IV]] (former)
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Now — [[Dead World]]. Devoured by [[Hive Fleet Leviathan]]
|-
|align=center|[[Gulgorahd]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Gylax VI]]
|align=center|[[Segmentum Ultima|Ultima]]
|align=center|
|-
|align=center|[[Hadd]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Haddrack]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Also a [[Death World]].
|-
|align=center|[[Halfus]] (former)
|align=center|
|align=center|Conquered by the [[Tau Empire]]'s [[Fal'shia Sep]].
|-
|align=center|[[Helios]]
|align=center|
|align=center|
|-
|align=center|[[Hellgrace]]
|align=center|
|align=center|
|-
|align=center|[[Hephaesto]]
|align=center|
|align=center|
|-
|align=center|[[Hervara]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Hesh]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Het]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Hexium Minora]]
|align=center|
|align=center|
|-
|align=center|[[Hydra Cordatus]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Index Expurgatorius
|-
|align=center|[[Hydraphur]]
|align=center|[[Segmentum Pacificus|Pacficus]]
|align=center|Also — [[Segmentum Fortress|Fleet Base]]
|-
|align=center|[[Hypnoth]] (former)
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Now planet belongs to [[Sautekh Dynasty]]
|-
|align=center|[[Idumea]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Iktomia]]
|align=center|
|align=center|Forge moon under the domain of the [[Blackshield Legio]] [[Legio Tritonis|Tritonis]] during the [[Horus Heresy]].
|-
|align=center|[[Illium]]
|align=center|
|align=center|Forge moon.
|-
|align=center|[[Incaladion]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Incriminated in a conspiracy connected to Techno-heretics and worship of proscribed Xenos-lores
|-
|align=center|[[Ionus X]]
|align=center|
|align=center|
|-
|align=center|[[Iridial]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Ironfound]]
|align=center|
|align=center|
|-
|align=center|[[Ironghast Foundry]]
|align=center|
|align=center|[[Chaos]]/[[Khorne]] Forge World
|-
|align=center|[[Ironhelm]]
|align=center|
|align=center|
|-
|align=center|[[Ixas]]
|align=center|
|align=center|Housed the [[STC]] for the [[Las-Impulsor]].
|-
|align=center|[[Jerulas Station]] (former)
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Now a [[Dead World]].
|-
|align=center|[[Jupiter]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|Also a [[Mining World]].
|-
|align=center|[[JXM A18Z]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Kai]] (former)
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Population butchered by [[Chaos]].
|-
|align=center|[[Kalibrax]]
|align=center|[[Tempestus]]
|align=center|
|-
|align=center|[[Kantakkha]] (former)
|align=center|[[Obscurus]]
|align=center|Occupied by Chaos
|-
|align=center|[[Kantrael]]
|align=center|[[Obscurus]]
|align=center|Famous for its Kantrael-pattern [[Lasgun]]s, used by [[Cadian Shock Troopers]].
|-
|align=center|[[Kappa Prime]]
|align=center|
|align=center|Homeworld of the [[Magos Biologis]], [[Daleth Tencin]].
|-
|align=center|[[Kernak III]] (former)
|align=center|[[Ultima]]
|align=center|Occupied by [[Orks]]
|-
|align=center|[[Khania]]
|align=center|
|align=center|Invaded by [[Tyranid]]s. Fate unknown.
|-
|align=center|[[Kiavahr]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Controlled by the [[Raven Guard]].
|-
|align=center|[[Koden Tertius]]
|align=center|
|align=center|
|-
|align=center|[[Kogen's Toil]]
|align=center|
|align=center|
|-
|align=center|[[Konor]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Controlled by the [[Ultramarines]].
|-
|align=center|[[Krawbek]]
|align=center|
|align=center|Forge moon that is currently being invaded by the [[Iron Warriors]] forces of the [[Warpsmith]] [[Brondex]].
|-
|align=center|[[Krytos]]
|align=center|
|align=center|Home to the [[Legio Krytos]] [[Titan Legion]].
|-
|align=center|[[Lankast]]
|align=center|[[Tempestus]]
|align=center|Fate unknown.
|-
|align=center|[[Lannar IV]]
|align=center|[[Solar]]
|align=center|Fate unknown.
|-
|align=center|[[Lashte]]
|align=center|
|align=center|
|-
|align=center|[[Lector's Lowell]]
|align=center|[[Ultima]]
|align=center|
|-
|align=center|[[Lentrel Prime]]
|align=center|[[Ultima]]
|align=center|One of the eighteen worlds within the Vidar Sector, that contact was lost with in 925.M41.
|-
|align=center|[[Lipitou Anville]]
|align=center|
|align=center|
|-
|align=center|[[Lliax]]
|align=center|
|align=center|
|-
|align=center|[[Lucius (Forge World)|Lucius]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[M'khand]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|
|-
|align=center|[[M'Pandex]] (former)
|align=center|[[Obscurus]]
|align=center|Controlled by the [[Dark Mechanicum]].
|-
|align=center|[[Magnax]]
|align=center|
|align=center|One of the trio of Forge Worlds (named [[Deuterium Stars]]) which during the [[Great Crusade]] were the only ones who produced the [[Las-Impulsor]]s for [[Imperial Knights]]. Overrun and destroyed during the [[Horus Heresy]]
|-
|align=center|[[Magnos Omicron]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|
|-
|align=center|[[Mars]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|
|-
|align=center|[[Mediant]]
|align=center|
|align=center|
|-
|align=center|[[Megyre]] (former)
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Now — [[Dead World]]
|-
|align=center|[[Melior-Tertia]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Metalica]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Mezoa]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Major naval shipyard
|-
|align=center|[[Milhand]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|
|-
|align=center|[[Moirae]] (former)
|align=center|
|align=center|Now - Destroyed
|-
|align=center|[[Monsk]]
|align=center|
|align=center|
|-
|align=center|[[Moredakka]] (former)
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|Now — [[Ork World]]
|-
|align=center|[[Morod]]
|align=center|
|align=center|Consumed by [[Tyranid]]s, now [[Dead World]].
|-
|align=center|[[Morvane]]
|align=center|
|align=center|Lost Imperium world
|-
|align=center|[[Mpandex]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Nekkar]]
|align=center|
|align=center|Formerly held by the [[Word Bearers]]
|-
|align=center|[[Ninevah]]
|align=center|
|align=center|Home of the [[Legio Invictus]] [[Titan Legion]].
|-
|align=center|[[Noctillus Dhega-Nox]]
|align=center|
|align=center|
|-
|align=center|[[Novios]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-forge Cluster]] and contested by [[Chaos]].
|-
|align=center|[[Nullivar]]
|align=center|
|align=center|Fabled lost Forge World.
|-
|align=center|[[Nysairene Delta]] (former)
|align=center|
|align=center|Fell to a vast [[Chaos]] warhost, which slaughtered the [[Indomitus Crusade]] forces sent to defend it.
|-
|align=center|[[Ohmn-Mat]] (former)
|align=center|[[Ultima]]
|align=center|Destroyed during the [[Horus Heresy]], now [[Dead World]].
|-
|align=center|[[Oktos]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Omegrath]]
|align=center|
|align=center|
|-
|align=center|[[Omnicron 71-DX]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Onos]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Ophelia VII]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|Also — [[Cardinal World]], [[Shrine World]]
|-
|align=center|[[Opus Ersaticus]]
|align=center|
|align=center|
|-
|align=center|[[Opus Macharius]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Ordana]]
|align=center|
|align=center|
|-
|align=center|[[Ordex-Thaag]] (former)
|align=center|[[Tempestus]]
|align=center|Controlled by the [[Dark Mechanicum]].
|-
|align=center|[[Orestes]]
|align=center|[[Ultima]]
|align=center|Also — [[Knight World]]
|-
|align=center|[[Palatine III]]
|align=center|
|align=center|Also — [[War World]], partly — [[Ork World]]
|-
|align=center|[[Palomar]] (former)
|align=center|
|align=center|Now — [[Dead World]]
|-
|align=center|[[Parabellus III]]
|align=center|
|align=center|
|-
|align=center|[[Pentos]]
|align=center|
|align=center|
|-
|align=center|[[Perinetus]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Phaestos (Forge World)|Phaestos]]
|align=center|
|align=center|
|-
|align=center|[[Phaeton]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|Originator of a common Leman Russ pattern
|-
|align=center|[[Phaistos]]
|align=center|
|align=center|
|-
|align=center|[[Porphetus]] (former)
|align=center|
|align=center|Now — [[Dead World]]
|-
|align=center|[[Proteus (planet)|Proteus]]
|align=center|
|align=center|
|-
|align=center|[[Proximus]]
|align=center|
|align=center|
|-
|align=center|[[Qartos]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Qintos]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Quir]]
|align=center|
|align=center|Controlled by the [[Dark Mechanicum]].
|-
|align=center|[[Raeddon]]
|align=center|[[Obscurus]]
|align=center|Located at the [[Cadian Gate]].
|-
|align=center|[[Rangda IX]]
|align=center|
|align=center|
|-
|align=center|[[Retlaxi]]
|align=center|
|align=center|Contested.
|-
|align=center|[[Rho-Delpha]]
|align=center|
|align=center|
|-
|align=center|[[Ryboth]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Ryza]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|
|-
|align=center|[[Samech]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|[[Dark Mechanicum]] Forge World
|-
|align=center|[[Sanctus Valorium]]
|align=center|
|align=center|Renowned for its [[Las Weapons|las-craft workshops]].
|-
|align=center|[[Sarcosa-Omikron]]
|align=center|
|align=center|Controlled by [[Dark Mechanicus]]
|-
|align=center|[[Sareme]]
|align=center|
|align=center|Home to [[Legio Arconis]]. It has almost completely fallen to [[Heresy]], in the aftermath of the [[Great Rift]]'s creation.
|-
|align=center|[[Satyraes XII]]
|align=center|
|align=center|Home of the [[Legio Defensor]] [[Titan Legion]].
|-
|align=center|[[Seixios]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Septios]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Shaehol]]
|align=center|
|align=center|
|-
|align=center|[[Shallethrax]]
|align=center|
|align=center|
|-
|align=center|[[Shenlong]] (former)
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Now — [[Dead World]]
|-
|align=center|[[Shern]]
|align=center|[[Obscurus]]
|align=center|
|-
|align=center|[[Shevilar]]
|align=center|
|align=center|
|-
|align=center|[[Sidon 452]]
|align=center|
|align=center|Built the starship ''[[Star of Venam]]''
|-
|align=center|[[Sigma-Ulstari]]
|align=center|[[Ultima]]
|align=center|Also the only [[Warden Planet]] that lies within the [[Cordon Impenetra]], which borders the [[Ork Empire of Octarius]].
|-
|align=center|[[Silent Forge]]
|align=center|
|align=center|[[Dark Mechanicus]] Forge World
|-
|align=center|[[Skorgulian]]
|align=center|[[Obscurus]]
|align=center|
|-
|align=center|[[Solemnium]] (former)
|align=center|
|align=center|Former [[Imperium]] Forge World
|-
|align=center|[[Staban VII]]
|align=center|
|align=center|
|-
|align=center|[[Straxos]]
|align=center|
|align=center|
|-
|align=center|[[Stryken Primus]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Stygia XII]]
|align=center|
|align=center|
|-
|align=center|[[Stygies VIII]]
|align=center|[[Ultima Segmentum|Ultima]]/[[Segmentum Obscurus|Obscurus]]
|align=center|Produces Leman Russ Vanquishers
|-
|align=center|[[Synford]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Synford II]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Taslan's Forge]]
|align=center|
|align=center|
|-
|align=center|[[Telemachus]]
|align=center|
|align=center|
|-
|align=center|[[Telerac]]
|align=center|
|align=center|
|-
|align=center|[[Temaxia]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Tephusa Binary]]
|align=center|[[Obscurus]]
|align=center|
|-
|align=center|[[Thagria]]
|align=center|
|align=center|
|-
|align=center|[[Thrax (Forge World)|Thrax]] (former)
|align=center|
|align=center|Now — [[Dead World]]
|-
|align=center|[[Thrios]]
|align=center|[[Ultima]]
|align=center|Part of the [[Tri-Forge Cluster]]. Contested by [[Chaos]].
|-
|align=center|[[Thule (Planet)|Thule]]
|align=center|[[Ultima]]
|align=center|
|-
|align=center|[[Tigrus]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Former [[Ork World]], now reclaimed.
|-
|align=center|[[Titanslair]]
|align=center|[[Pacificus]]
|align=center|Homeworld of [[Legio Machaera]].
|-
|align=center|[[Toil]]
|align=center|
|align=center|Former [[Imperium]], now — [[Chaos]] Forge World and [[Dead World]]
|-
|align=center|[[Tolkan]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Tolkhan]]
|align=center|[[Tempestus]]
|align=center|Home to the [[Titan Legion]] [[Legio Pallidus Mor]]. It is also the [[Sector Lord|Sector Capital]] of the [[Khaldun Sector]] and a vassal world of the [[Gryphonnen Octad]] as well.
|-
|align=center|[[Tophet VI]]
|align=center|
|align=center|Invaded by the [[Iron Warriors]].
|-
|align=center|[[Transix Seven]]
|align=center|
|align=center|Homeworld of [[Inquisitor]] [[Kessel]]'s [[Acolyte]] [[Logan Storm]].
|-
|align=center|[[Triplex Phall]]
|align=center|[[Ultima Segmentum|Ultima]]
|align=center|Home of the [[Legio Victorum]].
|-
|align=center|[[Trisolian A-4]]
|align=center|[[Solar]]
|align=center|Fate unknown.
|-
|align=center|[[Turanshush]]
|align=center|[[Obscurus]]
|align=center|
|-
|align=center|[[Tydeus (Forge World)|Tydeus]]
|align=center|[[Ultima]]
|align=center|
|-
|align=center|[[Tymatros Aleph]]
|align=center|
|align=center|Occupied by [[Necrons]].
|-
|align=center|[[Ulan Huda]]
|align=center|[[Ultima]] (Originally)
|align=center|Controlled by the [[Dark Mechanicum]], said to now lurk somewhere in the darkness beyond the galactic rim.
|-
|align=center|[[Unverrdt IX]]
|align=center|[[Ultima]]
|align=center|Has close ties to the [[Blood Angels]] [[Chapter]].
|-
|align=center|[[Uraniborg 1572]]
|align=center|
|align=center|[[Chaos]] Forge World
|-
|align=center|[[Urdesh]]
|align=center|[[Segmentum Pacificus|Pacificus]]
|align=center|Principal supplier to the [[Sabbat Crusade]].
|-
|align=center|[[Vanaheim]]
|align=center|[[Solar]]
|align=center|
|-
|align=center|[[Vantius]] (former)
|align=center|
|align=center|Overrun by an assault by [[Dark Eldar]] [[Mandrake]]s, but not before a handful of its secrets had been preserved by the [[Raven Guard]]. This includes the creation of [[Silentus Pistol]]s.
|-
|align=center|[[Vastum-01]] (former)
|align=center|
|align=center|Abandoned by the Mechanicus after being stripped of resources.
|-
|align=center|[[Vaznagrod]]
|align=center|
|align=center|
|-
|align=center|[[Vellung]]
|align=center|[[Solar]]
|align=center|Homeworld of the [[Cyclopeans]] [[Titan Legion]].
|-
|align=center|[[Venatoria]]
|align=center|
|align=center|In '''743.[[M40]]''', [[Tech-Priest]]s of the world created the infamous [[Reality Cage]].
|-
|align=center|[[Verica VII]]
|align=center|
|align=center|Home to the [[Collegia Titanica]] [[Legio Sirius]].
|-
|align=center|[[Vindalex]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Voss (Forge World)|Voss]]
|align=center|[[Solar]]
|align=center|
|-
|align=center|[[Voss Prime]]
|align=center|[[Segmentum Solar|Solar]]
|align=center|Known as the '''Right Hand of Mars'''. Homeworld of the [[Legio Invigilata]].
|-
|align=center|[[Weldcog]]
|align=center|
|align=center|Forge Moon, that is controlled by the [[Pistonhand's Daemoniforge]] [[World Eaters]] [[Chaos Warband|Warband]].
|-
|align=center|[[Xana]]
|align=center|[[Pacificus]]
|align=center|One of the first [[Hell Forge]]s.
|-
|align=center|[[Xana II]]
|align=center|[[Obscurus]]
|align=center|Controlled by the [[Dark Mechanicum]].
|-
|align=center|[[Zeran]]
|align=center|
|align=center|
|-
|align=center|[[Zhao-Arkkad]]
|align=center|[[Segmentum Tempestus|Tempestus]]
|align=center|
|-
|align=center|[[Zopyrus VI]]
|align=center|
|align=center|
|-
|align=center|[[Zosma]]
|align=center|[[Segmentum Obscurus|Obscurus]]
|align=center|
|-
|align=center|[[Zpandex]]
|align=center|[[Segmentum Obscurus|Obscurus]]
