You might find some Christiams using Astrology - but Astrology is shunned by most of the Christian Church. Of course, “celestial mechanics” is a completely separate thing.
As far as predicting the return of Jesus, there are two separate events. One is the Rapture, and according to the Doctrine of Imminence, one won’t know exactly when that will happen, but Christians are told to be aware of the season of it’s time, just like Jesus said.
As far as the time when Jesus sets his foot on the Mount of Olives, and sets up his one-world government over the nations of the world ... once someone is inside the Tribulation, then one can know down to the day, when Jesus comes back to the earth and battles the Antichrist and the remainder of his forces on earth.
But again, that’s once someone is already inside the Tribulation. If one is outside of it, as we are now, it’s not possible to predict the day.
Yeshua told us in Matthew 24 that the Rapture/Resurrection is at the 7th trump, at the end of Satan’s tribulation of the saints, at Yom Teruah.
At that time the ten days of bowl judgments will be poured out on those that worshiped the Beast or took his mark culminating at Yom Kippur. Five days after that, on Succot, Yeshua returns with his saints and angels girded for battle with Satan.
I would not count on the timing of any Lunar eclipse, but we do know that Satan is thrown down, and the Abomination occurs at Purim; we just don’t know yet what year.
Per this post, you believe in the pretrib rapture. Since you seem to be in league with Mark Blitz, and possibly John Hagee the main promoter of the tetrad blood red moons, does this mean that Mark Blitz is also pretrib? As everyone is aware of, Hagee certainly is.