Okay: This is what I can give you so far.
Geography: The Caranthelan Shield
Sectors: 4, including Lahara and Gricho, seperated my the nebula known as the Cowl Crucible.
Named Worlds: Agamar, Tarsis, Arkamon
Summery: The Caranthelan shield is a collection of four star sectors which retain some form of nobility as a 25,000 year leftover from the Wars of Consolidation which formed the Old Republic.
*Smacks Red for using his planets.*