A star system, also known as a planetary system or simply a system, was a group of bodies orbiting a one or more stars. Star systems usually consisted of one or more planets, and the debris remaining from the formation of the primary planets and central star, such as comets and asteroids.
There were 7,100,000,000 stars in the known galaxy, with approximately 3,200,000,000 habitable star systems. Only about a billion of these systems had life. Only 69,000,000 of those systems met population requirements for Imperial representation. All star systems were given coordinates that were used by navicomputers to permit space travel. Flying from the center of a star system to its further limits at sublight speeds took from 12 to 72 hours, depending on the size of said system and the potential obstacles along the way.
Technically, star systems appear in almost every Star Wars work. This list only includes explicit mentions of star systems in text or dialogue.