Horus Heresy · atlas

System · Segmentum Ultima

Nagathar System

Fig. 1 · Location on the map

The Nagathar System is a world where a Dark Angels strike force cut off by the Ruinstorm, a splinter of the Imperial Fists and scattered loyalists rallied to repel the invasion of the Word Bearers, who wished to sacrifice millions of its inhabitants in a rite of Chaos.

Category
System
Location
Segmentum Ultima
Significance on the map
1 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:

Russian source notes (1) RU
  • «Defence of Nagathar (009.M31) — Ruinstorm-severed loyalists vs a Word Bearers incursion» — WH40k Fandom: Horus Heresy Chronology; сегментум прямо не назван (вывод свода: восточная, отрезанная Руинным Штормом область)

Events in the system

Legions

Legions named in the system’s events:

Sources

  1. WH40k Fandom: Horus Heresy Chronology
  2. Atlas compilation · source check 2026
Open in the atlas

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