Get a decent book on the Gods. If you're looking for detailed information then a good book is really the only useful place to look- the internet pages are mainly copied from one another and lots of them have major innacuracies. Might I reccomend . I own it and it has a detailed information on many of the key forms. Or try looking it up in your local library. That isn't to say that there isn't any useful info on the web:
Re
Also spelled Ra, or Phra, in ancient Egyptian religion, god of the sun and creator god. He was believed to travel across the sky in hissolar bark and, during the night, to make his passage inanother bark through the underworld, where,in order to be born again for the new day, he had to vanquish the evil serpent Apopis (Apepi). As the creator, he rose from the ocean of chaos on the primeval hill, creating himself and then in turn engendering eight other gods.
Originally most solar gods had falcon form and were assimilated to Horus. By the 4th dynasty (c. 2575–c. 2465 BC),however, Re had risen to his leading position. Many syncretisms were formed between Re and other gods, producing such names as Re-Harakhty, Amon-Re, Sebek-Re, and Khnum-Re. Aspects of other gods influenced Re himself; his falcon-headed appearance as Re-Harakhty originated through association with Horus. The influence of Re was spread from On (Heliopolis), which was the centre of his worship. From the 4th dynasty, kings held the title “Son of Re,” and “Re” later became part of the throne name they adopted at accession. As the father of Maʿat, Re was the ultimate source of right and justice in the cosmos.
At Thebes, by the late 11th dynasty (c. 1980 BC), Re was associated with Amon as Amon-Re, who was for more than amillennium the principal god of the pantheon, the “king of the gods,” and the patron of kings. The greatest development of solar religion was during the New Kingdom(1539–c. 1075 BC). The revolutionary worship of the sun disk Aton during the abortive Amarna period (1353–1336 BC) was a radical simplification of the cult of Re. During the NewKingdom, beliefs about Re were harmonized with those concerning Osiris, the ruler of the underworld.
Heliopolis
(Greek), Egyptian Iunu , or Onu (“Pillar City”) , biblical On one of the most ancient Egyptian cities, and the seat of worship of the sun god, Re. It was the capital of the 15th nome of Lower Egypt, but Heliopolis was important as a religious rather than a political centre. Its great temple of Re was second in size only to that of Amon at Thebes, and its priesthood wielded great influence, particularly during the 5th dynasty, when the worship of Re became the state cult. In the New Kingdom, the temple of Re-Horakhte became the repository of royal records.
Little remains today of this great city. The sole surviving monument is the obelisk of Sesostris I, the oldest obelisk in existence. Of the pair of obelisks erected by Thutmose III, nowknown as Cleopatra's Needles, one stands on the Thames embankment in London and the other in Central Park, New York City.
http://i-cias.com/e.o/heliopolis.htm
http://www.ancientroute.com/cities/heliopolis.htm
http://www.egyptianmyths.net/ennead.htm
http://www.egyptianmyths.net/re.htm
http://www.philae.nu/PerAnkh/perankhR.html
http://www.touregypt.net/featurestories/heliopolis.htm
Hope that helps- at least slightly
