<P> In some literature, Ra is described as an aging king with golden flesh, silver bones, and hair of lapis lazuli . </P> <P> The chief cult center of Ra was Iunu, the "Place of Pillars", later known to the Greeks as Heliopolis (lit . "Sun City") and today located in the suburbs of Cairo . He was identified with the local sun god Atum . As Atum or Atum - Ra, he was reckoned the first being and the originator of the Ennead ("The Nine"), consisting of Shu and Tefnut, Geb and Nut, Osiris, Set, Isis and Nephthys . The holiday of' The Receiving of Ra' was celebrated on May 26 in the Gregorian calendar . </P> <P> His local cult began to grow from roughly the second dynasty, establishing Ra as a sun deity . By the Fourth Dynasty, pharaohs were seen as Ra's manifestations on earth, referred to as "Sons of Ra". His worship increased massively in the Fifth Dynasty, when Ra became a state deity and pharaohs had specially aligned pyramids, obelisks, and solar temples built in his honor . The rulers of the Fifth Dynasty told their followers that they were sons of Ra himself and the wife of the high priest of Heliopolis . These pharaohs spent most of Egypt's money on sun temples . The first Pyramid Texts began to arise, giving Ra more and more significance in the journey of the pharaoh through the Underworld . </P> <P> During the Middle Kingdom era, Ra was increasingly affiliated and combined with other chief deities, especially Amun and Osiris . </P>

Who was believed to be the son of re the sun god