The S-W (Star Wars) Galaxy is the galaxy in the Star Wars universe, and a major location in the United Nations Saga. Every planet in the Star Wars universe exists in this galaxy, as well as a few new ones. Go to Wookieepedia to find out about the traditional planets. The planets unique to the U.N. Saga are listed here:
(St.) Xavier
Marsia
Dream Island
Egyptiona
Yerba