Horus Heresy · atlas

World · Segmentum Obscurus

Lucius

Fig. 1 · Location on the map

Lucius, “the Hollow Forge”, is a forge world of the Segmentum Obscurus with an artificial thermonuclear sun at its core; the home of the loyalist Legio Astorum (the “Warp Runners”) and patron of the Knight House Terryn. Throughout the Heresy it remained loyal to Terra.

Category
World
Location
Segmentum Obscurus
Significance on the map
2 of 5
Place confidence
Place reliable
Events
not marked in the chronicle

Place on the map

Grounds for placing the system exactly here on the map:

  • «Lucius — ‘The Hollow Forge’, hollow world in Segmentum Obscurus with an artificial fusion sun» — Fandom: Lucius

Sources

  1. WH40k Fandom: Lucius
  2. Lexicanum: Lucius (Forge World)
  3. Atlas compilation · source check 2026
Open in the atlas

Permalink: https://astart.es/en/systems/lucius/