Subsector Aurelia
Subsector Aurelia is a cluster of worlds in the Korianis sector of the Segmentum Ultima[4], which stands on the edge of the Imperium of Man. Occupied by the Blood Ravens, there have been three Aurelian Crusades in the past 11 years.[1][2][3]
The Space Hulk Judgment of Carrion is known to be active in the subsector.[2]