What, then, was this worship which had been absent from Thebes, but which had held its own to the north to such an extent that Amen-hetep IV. went back to it so eagerly? It could not have been the worship of Capella as a star alone, for such worship had been provided for by Thothmes III. by building temple G. Nor could it have been the worship of Spica as a star alone, for in that case the precedent of Annu would not have been appealed to. The worship he emphasised there exactly resembled that which had in early times been paramount at Heliopolis. One based on it, but not identical with it, had been in vogue at Thebes from 3200 B.C. to the time of Thothmes III., who, as the tool of the confraternity of Amen, intensified the solstitial worship, and did his best to kill that which had been based upon the Heliopolis cult. I say _exactly resembled_, because Amen-hetep IV., or some one of the preceding kings of Egypt, when reintroducing the old worship at Tell el-Amarna, orients the solar temple 13° north of west according to the data available. Now when we take the difference of latitude between Heliopolis and Tell el-Amarna into account, we find that the same declination (within half a degree) is obtained from both. Hence, at Annu in the old days, and at Tell el-Amarna afterwards, the sun was worshipped on the same day of the year. At both places the sunlight at sunset would enter the temple on April 18 and August 24 of the Gregorian year; hence both temples were probably built really to observe the sunset on a special day. In this view how appropriate was the prayer of Aāhmes, Khu-en-Aten's chief official-- "Beautiful is thy setting, thou sun's disk of life, thou Lord of Lords and King of the worlds. When thou unitest thyself with the heaven at thy setting, mortals rejoice before thy countenance and give honour to him who has created them, and pray before him who has formed them, before the glance of thy son who loves thee the King Khu-en-aten. The whole land of Egypt and all peoples repeat all thy names at thy rising, to magnify thy rising in like manner as thy setting."[94] As may be gathered from Lepsius' maps and plans, this "temple of the Sun" was not built alone. Set was again brought to the front. There was another at right angles to it, and while Spica was seen setting in one, a star near γ Draconis was rising in the other. It may be added that it was not apparently till Rameses II. built his temple M that Set again had an available temple at Karnak: one, however, again to be blocked when the victorious Tirhaqa and the Theban priests returned after their exile. (See page 186.) We see, then, that in a detailed study of the sun-worship at Thebes alone, we distinctly trace two schools of astronomical thought associated with different religious tendencies. As a protest against the Southern worship of the Theban priests, Khu-en-Aten goes back to a Northern cult. This point is evidently worth further inquiry.