Ultima Segmentum

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Galactic map of Ultima Segmentum

The Ultima Segmentum is one of the divisions of the Galaxy known as Segmentums of the Imperium and is by far the largest. It is located to the east of Holy Terra, and its Segmentum Fortress is located at Kar Duniash.^[1] Notably it contains the Ultramarines empire of Ultramar, the Tau Empire, and along its border is the Eastern Fringe.^{[Needs Citation]}

Following the conclusion of the Thirteenth Black Crusade and the rebirth of Roboute Guilliman, much of north and northeastern Ultima Segmentum has become stranded within Imperium Nihilus.^[2]

Notable Planets

• Andermung
• Anvilus Nine
• Attila
• Baal
• Badab
• Bork'an
• Calth
• Catachan
• Charadon
• Chemos
• Chogoris^[3]
• Dal'yth
• Eye of Damocles
• Fort Pykman
• Gorkamorka (Angelis)
• Konor
• Macragge
• Mancora
• Mandragora
• Masali
• Metalica
• Mu'gulath Bay
• Newfound
• Nuceria
• Olympia
• Orask
• Pech
• Prefectia
• Prospero
• Protos
• Pythos
• Rynn's World
• Ryza
• Sotha
• Stygies VIII
• T'au
• Talasa Prime
• Tsagualsa
• Tarsis Ultra
• Triplex Phall
• Valhalla
• Vespator
• Vespid
• Vior'la
• Vior'los
• Voltoris

Notable Regions

• Galactic Core
• Ultramar
• Craftworld Iyanden
• Tau Empire
• Sautekh Dynasty
• Grendl Stars
• Ghost Stars
• Ork Empire of Charadon
• Ork Empire of Octarius
• Red Scar^[4]
• Pariah Nexus^[4]

Notable Sectors, Sub-sectors, and Systems

• Charadon Sector
• Demeter Sector
• Loki Sector
• Badab Sector
• Karthago Sector
• Nostramo Sector
• Thramas Sector
• Vidar Sector
• Yasan Sector^[3]
• Corvus Sub-sector
• Lagan System
• Dovar System
• Gulgorahd Protectorate
• Balor System
• Octarius System
• Kreen Worlds
• Nephilim Sector^[5]
• Nocturne System

Other Celestial Objects

• Ulthwe^[6]
• Saim-Hann^[6]
• Ymga Monolith
• Pariah Nexus^[5]

Warpstorms

• Maelstrom
• Storm of the Emperor's Wrath
• Great Rift

Other Segmentums

• Segmentum Tempestus - Galactic South West
• Segmentum Solar - Galactic West
• Segmentum Obscurus - Galactic North West
• Segmentum Pacificus - Galactic Far West

Sources

• 1: Rogue Trader Rulebook, pg. 315
• 2: Warhammer Community
• 3: Codex Supplement: White Scars (8th Edition), pgs. 8-9
• 4: Psychic Awakening: Blood of Baal pg.4
• 5: Warhammer Community: Into the Pariah Nexus (Posted on 26/06/2020) (Last accessed on 26 June 2020)
• 6: Warhammer 40,000.com Map (last accessed 8/10/2020)