The Caligari Sector is a Galactic Sector located in the Galactic South, the Segmentum Tempestus of the Milky Way Galaxy.
With the frequent Warpsurges, most of this sector is dangerous, Chaos-infested, uncharted territory.
In the game
The entire sector is observable through the Star Map in the game. The Caligari sector is divided to subsectors, and its subsectors are home to many solar systems.