This archive tracks four layers. A record present in 1 of them (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
[RECORD LOST]
No record for this location in The 41st Millennium.
Era Indomituspost-Rift
contested
Imperial world under Ork invasion
A world invaded by Orks, where the Angels Sanguine fight the invasion in its mountains. Librarian Ashok is leading a Death Company there when he is recalled to the Deathwatch; his Chapter goes on to defeat the Orks without him (Warrior Coven).
Position
Map frame: 425.2, 931.5 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 438 units ≈ 46.6k light years, south of the galactic core.
Height above the disk plane: -9.8 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Trontium System
Books set here
1 title in the reading tracker touches this record. Titles link out to the tracker.
Every fact in this record, and where it came from. Editorial derivations say so.
identityhigh
wh40k.lexicanum.com/wiki/Trontium_VI (read directly in a browser on 2026-10-03): 'a world that was attacked by Orks'; 'The Angels Sanguine Chapter battled an Ork invasion on the planet. Librarian Ashok led a Death Company fighting Orks on the planet's mountains, when he was recalled to the Deathwatch' (Warrior Coven, Kill Squad omnibus ch. 2, pg. 189). NAME-COLLISION CHECK: no index record uses the id or label.
book-joinmedium
MENTIONED for Warrior Coven: the scene of Ashok's recall in ch. 2, not where the novel happens.
segmentumhigh
null: Lexicanum Trontium_VI's infobox has Segmentum, Sector, Subsector and System all 'Unknown' and the page is filed Segmentum Unknown.
classlow
'temperate', editorial: the only terrain word is 'mountains', which no palette owns; no climate or colour is given. The neutral default for an inhabited world, as for Herodian IV and Aurelius. Lexicanum's Class field is 'Unknown'.
gposlow
inferred: no segmentum, sector, neighbour or bearing is published, so the record claims no segmentum and sits on the unsurveyed rim at the generator's rim_xy('trontium-vi') = (425.2, 931.5), reproduced from build_locations.py's own fnv1a/CORE (checked against Herodian IV's stored point (101.6, 709.2); the generator was not run). The position carries no information and must not be read as one. Z -9.8 is the zPolicy value (compute-z.mjs trontium-vi 425.2 931.5).
erasmedium
indomitus only, the era the shelf files Warrior Coven in. Allegiance 'contested' (an Ork invasion being fought). Lexicanum's Affiliation is 'Unknown'; 'Imperial world' in the status rests on the Angels Sanguine defending it, not a stated affiliation.
systemIdlow
'trontium', from the world's name (the sixth world of a Trontium system is the usual reading, not a stated one). No survey file.