The Saites' view to heaven

Archaeology.org leads to a report on an Egyptian observatory. Buto Temple, 26th Dynasty called the "Saite". This was the long sixth century 664-525 BC.

I assumed that the Egyptians - as farmers and geometers - came to care about the heavens; the Pyramids are said to match the constellation Orion. But I hadn't seen much evidence. I suppose with the Assyrians knocking around, the Egyptians had to keep up with the latest out of Babylonia.

Any observatory should have seen whatever caused the great spike of the late 660s BC. I wonder actually if this portent hailed the Saite takeover.