This archive tracks four layers. A record present in 2 of them (M41, IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
[RECORD LOST]
No record for this location in The Horus Heresy.
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
The 41st Millenniumpre-Rift
imperium
Cemetery world
A world given over to burying other people's dead, with a monastery and a small population to tend the graves. It was attacked because it was defenceless, and defended by something that should not have been there.
Era Indomituspost-Rift
unknown
[RECORD LOST]
[RECORD LOST]
Nothing survives in the archive for Era Indomitus.
Position
Map frame: 206, 372 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 321 units ≈ 34.1k light years, north-west of the galactic core.
Height above the disk plane: 7.5 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Certus Minor System
Books set here
1 title in the reading tracker touches this record, 1 of them as a primary location. Titles link out to the tracker.
derived: Segmentum Obscurus is the only published placement fact. Placed coreward of Cadia inside the Astronomican, since it was a tithed, administered Imperial world with a standing monastery