Ra is the most known god of sun,he had become a major deity in ancient Egyptian religion, identified primarily with the mid-day sun. The meaning of the name is uncertain, but it is thought that if not a word for 'sun' it may be a variant of or linked to words meaning 'creative. The chief cult centre of Ra was Heliopolis (called Inun, "Place of Pillars", in Egyptian), where he was identified with the local sun-god Atum. Through Atum, or as Atum-Ra he was also seen as the first being and the originator of the Ennead, consisting of Shu and Tefnut, Geb and Nut, Osiris, Set, Isis and Nephthys. Ra was merged with the god Horus, as Re-Horakhty ("Ra, who is Horus of the Two Horizons"). He was believed to rule in all parts of the created world the sky, the earth, and the underworld.He was associated with the falcon or hawk. When in the New Kingdom the god Amun rose to prominence he was fused with Ra as Amun-Ra. Atum-Ra (or Ra-Atum) was another composite deity formed from two completely separate deities, however Ra shared more similarities with Atum than with Amun. Atum was more closely linked with the sun, and was also a creator god of the Ennead. Both Ra and Atum were regarded as the father of the deities and pharaohs, and were widely worshiped. In older myths, Atum was the creator of Tefnut and Shu, and he was born from ocean Nun.