Zerethyr is the closest large galaxy to Urakaya, and is known to Terrestrials as Andromeda. It is home to many currently-engaged Communion species, including the Zerzev and Rimorr. “Zerethyr”, the common Azgabol name, derives from the zerzev name for their home galaxy.
Urakaya and Zerethyr are connected by at least two Warp Gates. The oldest is the main gate, from Vergence. The second gate, the Arcturus Gate, was created at great cost by the zerzev much more recently.