Research Station

The ρ-class research stations are listed in the classification system of Imperial worlds, but are not worlds themselves. Some are based in orbit around planets or on asteroids, or on worlds themselves, such as dead worlds or death worlds. Types of research stations include actual laboratories, as well as surveillance posts for defensive purposes. Populations range from 100 to 500,000, and tithes are typically Aptus Non.

Notable Research Stations

Planet name	Segmentum	Sector	Subsector	System	Population
Arx	Segmentum Obscurus	Unknown	Unknown	Unknown	Unknown
Biegel 9	Unknown	Unknown	Unknown	Biegel system	Unknown
Fornoth	Unknown	Unknown	Unknown	Unknown	Unknown
Lucan	Unknown	Unknown	Unknown	Unknown	Unknown
Purgatory	Unknown	Unknown	Unknown	Unknown	Unknown
Sentinel V	Unknown	Unknown	Unknown	Unknown	Unknown
Ymgarl	Unknown	Unknown	Unknown	Unknown	Unknown
Tyran (Dead World, former Research Station)	Eastern Fringe	Unknown	Unknown	Unknown	N/A

Source

• ¹:Warhammer 40,000 3rd Edition Rulebook, p. 115