One explanation is that a settled world will often times not appear on ComStar maps until an HPG was constructed there, or it became an 'important' enough world to be placed on maps for people to know it existed by other agencies. Think of it as map makers ensuring that they aren't wasting time remaking maps including colonies that have failed or no longer exist.
It's better to err on the side of caution then to include places that aren't there anymore. Sort of like drawing a bridge over a river that isn't finished yet, hoping it'll be finished when the map goes for publication.
Aaron "Gravedigger" Pollyea
Sorry Aaron, but that is not an explanation/excuse we ever use :)
100% of all settled systems within the Great Houses and Near Periphery nations are shown on the maps. 100%.
There is no "too small to be shown" if it is within a Great House. HPGs has also nothing to do with any systems ever appearing on any maps. If it is not on the map, it is deader than a norwegian blue.
Periphery is slightly different. Outside of the Periphery Realms, a world is only shown if it has some kind of importance.
As for Kobe - it was settled in the early 25th, died out for some reason, and was resettled during the Star League.
With regards,
Øystein