Rim Worlds
From Tardis Wiki, the free Doctor Who reference
The Rim Worlds seemed to be a collection of planets in a solar system.
The leisure planet Abydos was located there. (AUDIO: The One Doctor)
In the 24th century, there were many wars occurring around this area, leaving a lot of battle cruiser debris for companies like the Search-Conv-Corp to collect. The planet Tokl was located there. (TV: Mindwarp)
