Vigilius sector

Lying deep within the Ultima Segmentum, near to the warp storm known to the Imperium as the Heart of Darkness, the Vigilius sector has stood as a beacon of the might of the Imperium since the days of the Great Crusade.

Vigilius sector was long known for its relative stability and wealth. Its mighty factories supplied the armies of the Ultima Segmentum far and wide and the Titan Legions and Guard regiments were honored and respected across the segmentum. However, as the Time of Ending began, this was all to change. Upstart Tau reached on its outskirts, Ork Waaagh!s rampaged across it and the whispers of the Ruinous Powers reached the sector. Now the sector is left in the ruins of its former glory, unable to answer the threats from without or within.

History
Before the birth of the Imperium, man had come to the Vigilius sector during their Golden Age of Technology. Many planets were settled by human colonists, finding the area largely without any other sentient life. The warp storm Heart of Darkness was seen as both a curiosity and a inconvenience. Eventually the decision was made to investigate the warp storm. The timing could not have been poorer however, in M23 a widespread revolt occurred among humanities sentient machines, the Men of Iron. Later thought to have been corruption by Chaos or daemonic possession, these revolts were especially horrendous on those planets in Vigilius sector who had been studying the Heart of Darkness. Many of these planets were left entirely underpopulated until the coming of the Imperium almost 10,000 years later.

During the Age of Strife, the newly formed Adeptus Mechanicus on Mars would send out many exploratory fleets into the galaxy to spread their religion and recover mankind's lost technology. Some of these would reach the Vigilius sector, finding planets that would eventually become mighty Forge worlds.

Coming of the Imperium
In the year 994.M30, Imperial Expeditionary fleets 631 and 1422 would reach the Vigilius sector, finding there many planets fit for human colonization, as well as some that already had human Inhabitants.

Imperial worlds

 * Turbela - Imperial sector capital and a hive/fortress world. While the Hive cities of Turbela produce an Impressive amount of manpower needed to keep the sector running, of greater importance (in the eyes of the Mechanicus) are the ancient storehouse dotting the landscape that date back to the Dark Age of Technology. Made sector capital mostly for it's central location.

Tau worlds

 * Au'rah - Tau sept world. Found during the Second Sphere of Expansion, Au'rah is the hub of Tau influence within the Vigilius sector.