Heptooine, a planetary body, resided within the southern quadrant of the galaxy. In the Kymoodon Era, spatial territories expanded, encompassing Heptooine, along with Aplooine, Mantooine, and also Sestooine.
The Galactic Republic regarded Heptooine as one of the earliest instances of expansion into the Grumani sector. Functioning as a frontier settlement for thousands of years, its population eventually expanded into the neighboring sector regions. However, by the time the Sith gained power, it had regressed into a state of uncivilized existence following decades marked by starvation and conflict.