Region · Segmentum Obscurus

Coronid Deeps

Fig. 1 · Location on the map

The Coronid Deeps are a region of forge and industrial worlds of the Segmentum Obscurus, the first to suffer from the traitors’ onslaught after Isstvan (the Manachean War). Mezoa held as a loyalist bastion.

Category: Region
Location: Segmentum Obscurus
Significance on the map: 3 of 5
Place confidence: Place reliable
Events: 3 events

Place on the map

Grounds for placing the system exactly here on the map:

«Coronid Deeps — a region (Segmentum Obscurus) of forge/industrial worlds» — Atlas compilation · source check 2026

Events in the system

Manachean War · the Coronid Deeps 007.M31 · Inconclusive
Gethsamaine Raid 007.M31 · Atrocity
Battle of Hive Ilium 008.M31 · Traitor victory

Legions

Legions named in the system’s events:

Factions

Named among the sides of the system’s events:

Imperial Army 1 event
Mechanicum 1 event
Dark Mechanicum Mechanicum · 1 event

Characters

Linked to the system’s events:

Autek Mor “the Maimed” Champion · Legion X · 2 events
Horus Lupercal Primarch · Legion XVI · 1 event
Ezekyle Abaddon Champion · Legion XVI · 1 event

Sources

Lexicanum: Invasion of the Coronid Deeps
WH40k Fandom: Mezoan Campaign
Atlas compilation · source check 2026

Open in the atlas

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