System · Segmentum Ultima
Trisolian System
The Trisolian System is Mechanicum territory (formerly bound to the Emperor); the site of the Battle of Trisolian, where Leman Russ was wounded by Horus. The segmentum is not directly established — the core-eastern frontier.
- Category
- System
- Location
- Segmentum Ultima
- Significance on the map
- 3 of 5
- Place confidence
- Place reconstructed
- Events
- 1 event
Place on the map
The place is reconstructed: the canon does not name it directly; the map places it from indirect evidence.
Grounds for placing the system exactly here on the map:
- «…segmentum not firmly stated» — Atlas compilation · source check 2026 (atlas inference)
Events in the system
Legions
Legions named in the system’s events:
Factions
Named among the sides of the system’s events:
Characters
Linked to the system’s events:
Sources
- Lexicanum: Battle of Trisolian
- Atlas compilation · source check 2026
Open in the atlas
Permalink: https://astart.es/en/systems/trisolian/