Terra

planet · hive world · Segmentum Solar
Also known as Holy Terra
rank I
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Record by era

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
Throneworld; seat of the Emperor

Capital of the young Imperium, being rebuilt into a single continent-spanning palace while the Great Crusade runs outward from it. Everything the Warmaster does is ultimately aimed here.

Age of the ImperiumM32–M40
imperium
Throneworld of the Imperium

Ruled from the Golden Throne by proxy, through the High Lords. Besieged again in M32 when an ork attack moon was dragged into orbit during the War of the Beast.

The 41st Millenniumpre-Rift
imperium
Throneworld of the Imperium

One planet-wide city of shrines, spires and archives, administering a million worlds. The Astronomican burns here, and its light is what makes Imperial warp travel possible at all.

Era Indomituspost-Rift
imperiumImperium Sanctus
Throneworld; seat of Imperium Sanctus

Still the Imperium's heart, now the capital of only the lit half of it. Guilliman ruled here as Imperial Regent before taking the Indomitus Crusade back out into the dark.

Position

Map frame: 242, 522 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 259 units ≈ 27.6k light years, west of the galactic core.
Height above the disk plane: 5.6 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Sol System — also here: Luna, Mars, Titan

Books set here

59 titles in the reading tracker touch this record, 40 of them as a primary location. Titles link out to the tracker.

Provenance

Every fact in this record, and where it came from. Editorial derivations say so.