Why don't Egyptians do astrology?

I noted here where Egyptians of Late Antiquity, nearly alone, have a dream vision where contemporaries had astrology. I called this "characteristic" given that Joseph ben Jacob, famously, had interpreted 'Azîz's dreams back in the prePharaonic era.

So: why didn't Egyptians do astrology? They had the same zodiac. Their calendar was solar. Light-pollution couldn't have been that bad. So let's float possibilities.

One is that the various beasties which mark the various hunting- and gathering- seasons upnorf in Anatolia are less seasonal in that southern "up", namely the Nile. The Nile floods or it doesn't, and for Egyptians pre-Nasser that was enough. No real need to track lions or gazelles. And every season is croc season.

It might be difficult for southern Egyptian and Nubian astrologers even to communicate with Babylonians, given that they're far enough south they see a whole band of sky the northerners don't.

And suppose you did want to do some astrology off the lighted river. Guess what: you're deep in the desert! Water costs money out there. And why do you even care? Sure, with an accurate clock and a sextant your astronomy can help guide caravans to the Garamantes or to Lake Chad or out to the Red Sea. But on the off chance someone wanted that, they hired a tracker who knew the landmarks.

Egypt's need for the heavens went so far as marking the seasons, and (later) the latitudes. They could do both with sundials, as Eratosthenes famously did. No need for nighttime "astro".

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