Some bits have survived, such as Alioth's past as Fruitcake and the genetic enhancing program instigated by the Empire there. Some divergence does exist between the gazette and tourist beacons that are available today as sources of historical records.
Ackanphi, Enaness, Extila, Liaququ and Quphieth are in the gazette but didn't make the transfer into the game. The rest can be found, and are still relevant today. Quince and Ross 128 come to mind.