The Known Galaxy has various names among the cultures which inhabit it. Being that trans-galactic travel is as yet unknown, no attempt to standardize those names has been made. It is a thin disk-shaped galaxy, with no central cluster or prominent spiral arms. The Commonwealth resides near the center, in an area of fairly uniform stellar frequency. The galaxy is generally less than 10 light-years thick, though systems are sometimes spaced farther above or below where the galactic plane is reckoned.
Commonwealth maps still use a numbering system developed by the Iron Kingdom. This system numbers worlds in reference to the Iron Kingdom throne-world of Ur Draxa. The galaxy is divided into 4 quadrants (with the Commonwealth residing in the SE), and each quadrant divided into hexagonal sectors roughly 10 light-years across.
A sector can hold many systems, though most have 3-5. From that number, a large percentage have inhabitable planets, most likely due to ancient terraforming efforts of the Illithid or other precursor species.
Kartonis – 0811
Capital planet of the Commonwealth, the fleet maintains operations here
Arvandor – 0709
Penumbra Station – 1708
1315 – GEN Mining facility, no native inhabitants, secret training facility that was the home of the GEN Magus Insurrection.
0719 – Citadel Station – watchtower on border of Gorgon Imperium
A dense nebula with a significant concentration of GEN particles. This prevents both mundane and magical scans of the contents, as well as significantly reducing the speed at which travel is safe. Ancient texts show this to be the heart of the Illithid Empire, long destroyed by an unknown force. The concentration and variety of GEN deposits makes this a valuable frontier for the Commonwealth.
0804 – Doradus System – Ancient robot facility, recovered devastator robot. Installation core had become insane and presented itself as a Olympian deity.
1001 – Violet star, 4th planet, 1 moon. Used for hand-off during the Ephemelon Innoculation.
0416 – Drexnal system, volcanic planet
1206 – Planet Pellanistra
0519 – Primogen System – asteroid mining rigs, used for Pathfinder refit after Starkiller ambush.