Eternia & the Tri-Solar System

The Tri-Solar System is the general setting of The New Adventures of He-Man. It includes planet Primus, home of the Galactic Guardians, and Denebria, where the Evil Mutants come from. To better link the several aspects of the Masters of the Universe franchise, Catra was revealed to come from the Tri-Solar System in her Masters of the Universe Classics bio.