This archive tracks four layers. A record present in 1 of them (M41) 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
Reef Stars undertaking
Explicit ReefStars Civilised World, disambiguated from SabbatWorlds Iorgu. Priad ref6c describes normally arid world; desert render is interpretive, not an assertion of sand everywhere.
Era Indomituspost-Rift
[RECORD LOST]
No record for this location in Era Indomitus.
Position
Map frame: 335, 258 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 293 units ≈ 31.2k light years, north-west of the galactic core.
Height above the disk plane: -1.9 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Iorgu Reef Stars 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/Iorgu Explicit ReefStars Civilised World, disambiguated from SabbatWorlds Iorgu. Priad ref6c describes normally arid world; desert render is interpretive, not an assertion of sand everywhere.
wh40k.lexicanum.com/wiki/Ithaka , https://wh40k.lexicanum.com/wiki/Karybdis and https://wh40k.lexicanum.com/wiki/Iorgu explicitly Obscurus; https://wh40k.lexicanum.com/wiki/Reef_Stars and exact novel list join the other ReefStars worlds to that secondary regional context, not a canonical coordinate.
gposlow
inferred: [335,258] is an editorial marker in the existing Obscurus boundary, with no canonical distances; Karybdis shares Ithaka XY because it is its moon. Z from compute-z.mjs.
classmedium
Explicit ReefStars Civilised World, disambiguated from SabbatWorlds Iorgu. Priad ref6c describes normally arid world; desert render is interpretive, not an assertion of sand everywhere.
systemIdlow
Editorial rendering identity; no named star or sibling-world inventory inferred.
surveylow
No inspected survey; labelled procedural fallback.