This archive tracks four layers. A record present in 4 of them (HH, AoI, M41, IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
imperium
Homeworld of Fulgrim and the III Legion
A world down to its last resources, worked in shifts by a population that had stopped growing, until Fulgrim reorganised its factories and made it produce again. The Emperor's Children's obsession with perfection is a scarcity habit that outlived the scarcity.
Age of the ImperiumM32–M40
none
Destroyed; the Chemos System declared Perdita
The Dark Angels broke the planet apart in reprisal and ringed the system with warning beacons before leaving.
The 41st Millenniumpre-Rift
none
Destroyed; a debris field
[RECORD LOST]
nothing is published about anyone returning.
Era Indomituspost-Rift
none
Destroyed; a debris field
Still Perdita, still ringed with beacons, still in pieces. The Legion it fed is inside the Eye and has no use for a world that made things.
Position
Map frame: 695, 459 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 199 units ≈ 21.2k light years, east of the galactic core.
Height above the disk plane: 3.2 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Chemos System
Books set here
1 title in the reading tracker touches this record. Titles link out to the tracker.
wh40k.lexicanum.com/wiki/Chemos infobox Class = 'Destroyed, former Mining World, later Civilized World'; rendered forge for the industrial world the Heresy books use
gposlow
derived: Ultima Segmentum, Aquitaine Sector; placed in the segmentum's north-west near the Solar border, inside the Astronomican's ~50,000 ly reach from Terra, which a Legion homeworld of the Great Crusade must have been. No published bearing exists
destructionhigh
wh40k.lexicanum.com/wiki/Chemos_System the Dark Angels 'destroyed Chemos with such firepower that the world was obliterated' in 12.M31 and declared the system Perdita
era-indomitushigh
this entry exists to close a rendering gap, not because a new source appeared. app/src/stages/system.js draws a planet in every era whether or not its record carries that era, and derives a destroyed world's grey from eras[era].status — so an era key the record does not carry falls back to the survey class and the world comes back to life in it. With the baseline moved to this world's LIVING appearance, a missing indomitus key would have done exactly that. The status carries forward what the preceding era already states, on the same source; nothing new is claimed
era-m41-statushigh
the m41 status was 'Debris field' alone. That is a true description and a rendering failure at the same time: app/src/stages/palettes.js STATUS_CLASS does not match the word 'debris', so a world the previous era states was obliterated was drawn as a working forge world in the era after it. 'Destroyed' now leads the status and the debris field qualifies it — the same claim, on the word the renderer reads