You can't take the sky from me
The Bright Cluster
The Bright Cluster consists of five stars, all orbiting the largest. Each of these stars contains its own system of planets. The cluster contains dozens of terraformed habitable worlds, made as earth-like as humanity could manage with its very best technology and resources.
The white giant at the heart of the bright cluster is called Bright Prime, or simply Prime in most conversations. It has the most, best-terraformed worlds, along with the highest population and wealthiest economic situations. The next four stars (in order of increasing orbital distance from Prime) are called Alpha, Beta, Gamma, and Delta, respectively, and generally get less populated and prosperous as they go (although within each system, there is a good deal of variation as well).