[The Might]

Ok, ok, interesting information there, I agree.

But, and this is the crucial point, where is your proof?
You can surely show me some documents that clearly show Galileo was an astrologer as well and I will obviously believe you.
But, what documents can you show me to make me believe Meneldur or anyone else in M-e was an astrologer?
If you can, then awesome!

But I personally doubt there are any. And as there aren't any I see no reason to believe there were astrologers.
I can well imagine that say, Southrons saw some new stars in the sky and said, "Oh, now we will have good crops!". But does Tolkien ever mention it? No.
Which brings me to my earlier point: astrology in M-e is as far as we know not existant, however possible and also plausible.