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
Imperial world; seat of several Navigator houses
Advanced, productive and wealthy in the way Segmentum Solar worlds are, and strategically vital: it sits at the centre of one of the eight major Warp routes to Terra. Its capital, Ascension City, holds over seventy million people between silvery windscrapers and the smog-deeps beneath them.
Era Indomituspost-Rift
imperiumImperium Sanctus
Imperial world; the Vorlese corridor
After the Great Rift the Black Legion came to close the route for good, meaning to drop a shard of a Cadian pylon onto the planet and use its null energies to kill Warp travel across the region. The PDF held the ground while Custodes and Sisters of Silence boarded the grand cruiser above, long enough for Guilliman fleet to arrive. The corridor then carried Indomitus fleets outward into Imperium Sanctus.
Position
Map frame: 268, 508 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 232 units ≈ 24.7k light years, west of the galactic core.
Height above the disk plane: -5.0 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Vorlese 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.
Every fact in this record, and where it came from. Editorial derivations say so.
segmentumhigh
wh40k.lexicanum.com/wiki/Vorlese infobox Segmentum = Segmentum Solar; "an advanced, productive, and wealthy world that is typical of Segmentum Solar"
classmedium
wh40k.lexicanum.com/wiki/Vorlese the infobox Class field is EMPTY. Hive is our reading of Ascension City, its capital, described with a population above seventy million living between windscrapers and smog-deeps
inferred: the segmentum is published and nothing finer is. Placed inside the Solar block near Terra, because the whole point of the world is that it sits on one of the eight major Warp routes to Terra. Region-level and no better
indomitushigh
wh40k.lexicanum.com/wiki/Vorlese §History — the Black Legion assault, the Cadian pylon shard, the Custodes and Sisters of Silence boarding action, Guilliman relief, and the later use of the Vorlese corridor by the Indomitus Crusade