Jack of Harts

Everybody knows that Alpha Centauri A has three habitable worlds, assuming variable values for habitability.  But each of them has a moon that we’ve placed small colonies on, and there are four gas giants in the system with a total of twenty more major moons.  As we know from the Terran system that leaves a lot of real estate to place small colonies on, and we’ve been there for nearly three centuries.  And we’ve used it.