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
imperium
Past battlefield of the 16th Gavera
A world where the Imperium fought a battle with Space Marines and the 16th Gavera regiment among its forces. It is named in The Triumph of Saint Katherine as one of the Gavera's earlier campaigns.
Position
Map frame: 891, 284.3 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 447 units ≈ 47.5k light years, north-east of the galactic core.
Height above the disk plane: 5.7 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Aldana 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/Aldana (read directly in a browser on 2026-10-01), citing The Triumph of Saint Katherine (Novel) 'Monster': 'the site of a battle for the forces of the Imperium. Among them were Space Marines and the 16th Gavera Regiment'. https://wh40k.lexicanum.com/wiki/16th_Gavera lists Aldana among the regiment's known battles. NAME-COLLISION CHECK: no other Lexicanum article or index record uses the name.
classlow
editorial, NOT a citation: canon gives Aldana no world type, terrain or colour and the infobox Class field is empty. Rendered `temperate` as the neutral default, as for Nikaea and Helwain. Repaint if a permitted source describes its surface.
segmentumhigh
wh40k.lexicanum.com/wiki/Aldana (read directly in a browser on 2026-10-01): the infobox Segmentum, Sector, Subsector and System fields are all blank and the page is in Lexicanum's 'Segmentum Unknown' category. So `segmentum` is null.
gposlow
inferred: no published geography that places it. Lexicanum's infobox gives no segmentum, sector, subsector or system and files the page under 'Segmentum Unknown', and no neighbour with a position is named. The position comes from the generator's rim_xy('aldana') on the unsurveyed rim (r = 430..455, outside every stylised segmentum polygon), so no membership is implied. The coordinate carries no information. Z from compute-z.mjs under zPolicy.
eraslow
Only `indomitus` is carried. The battle predates the Kiros campaign by an unstated interval, so it is filed in the era of the one book that names it. Allegiance 'imperium' because the Imperium fought for it, and no source gives an outcome.
no-system-surveyhigh
No `systems/aldana.json` is authored, on purpose. Canon names no star, no sibling body and no body count for this system, so a survey would be invented. The synthesised one-world system stands. Revisit if a permitted source describes the system.