The Great Ennead of Heliopolis was made up of nine gods.
The Great Ennead was the Heliopolitan group of nine deities known in Egyptian tradition as the Pesedjet, a name meaning “the Nine.” Its central figure was Atum, the self-created deity who emerged from the primordial waters. Atum produced Shu, air, and Tefnut, moisture; they in turn became the parents of Geb, earth, and Nut, sky.
Geb and Nut were the parents of Osiris, Isis, Set, and Nephthys, completing the traditional nine-member group. These family relationships formed the foundation of the Heliopolitan creation account and connected cosmic forces with the divine family involved in the Osiris story.
The Ennead was not the entire Egyptian pantheon, and its membership was not identical in every source. Some accounts include Horus the Elder, while other local traditions organized their gods differently. The nearby religious center of Hermopolis emphasized the Ogdoad, a group of eight primordial deities. Despite these variations, the Great Ennead itself conventionally means the nine gods of Heliopolis.