North Galaxy Where most of the action takes place in the series, the North galaxy contains many planets that harbor life. It is ruled by the North Dai Kaio and the four lesser Kaios, who each live on their own small planetoids in heaven. Only movie #8 shows a system from another galaxy.
Arlia
Earth
Kanassa
Old Namek
Planet Plant aka planet Vegeta
Dark Star
Meat
New Namek
Slug' Ship
furiza#79
Big Ghetti Star
Yardrat
Makyo Star
Zun
KOnats
South Galaxy
The Legendary Super Saiyajin wrecks most of his havoc on this galaxy in movie #8, and destroys a number of its systems. New Vegeta is founded here.
New Vegeta
West Galaxy
The Legendary Super Saiya-jin destroys a few of the systems here. This galaxy is not mentioned much in the series.
East Galaxy
The Legendary Super Saiyajin destroys a few of the systems here. This galaxy is not mentioned much in the series.
Want to Identify the planets even more go to the Planets Section