For us Christians, a very careful reading of the bible will tell us what are proper uses of astrology, and what are improper.
Right off the top of my head, check Genesis and Ecclesiastes. From my reading, we are told that God is in charge of the signs and the planets, the seasons, etc.
The Bible states that God made the heavenly bodies to show us "signs" of his intentions. These signs can be read by anyone who knows how to interpret them. Astrology is about interpreting these signs in the motions of the sun, moon, planets, and stars.
"There shall be signs in the sun, the moon, and the stars." - Jesus Christ, Luke 21:25
"And God said, "Let there be lights in the expanse of the sky to separate the day from the night, and let them serve as SIGNS to mark seasons and days and years, and let them be lights in the expanse of the sky to give light on the Earth." And it was so." (Gen. 1:14-15)
"And there shall be SIGNS in the sun, and in the moon, and in the stars; and upon the Earth distress of nations, with perplexity; the sea and the waves roaring; Men's hearts failing them for fear, and for looking after those things which are coming on the Earth: for the powers of heaven shall be shaken. And then shall they see the Son of man coming in a cloud with power and great glory." (Luke 21:25-27)
"The HEAVENS declare the glory of God, and the firmament shows his handiwork. Day after day utters his speech and night after night shows his knowledge. There is no tongue or language where their voice is not heard. Their line is gone out through all the Earth and their words to the ends of the world. In them (the heavens) he has set a tabernacle for the sun." (Psalm 19:1-4)
"Can you bring forth the Mazzaroth (the zodiac) in their seasons or lead out the Bear with its cubs? (an astrological constellation)" (Job 38:32)
"There is a time for everything, and a season for every activity under heaven: a time to be born and a time to die, a time to plant and a time to uproot, a time to kill and a time to heal, a time to tear down and a time to build, a time to weep and a time to laugh, a time to mourn and a time to dance, a time to scatter stones and a time to gather them, a time to embrace and a time to refrain, a time to search and a time to give up, a time to keep and a time to throw away, a time to tear and a time to mend, a time to be silent and a time to speak, a time to love and a time to hate, a time for war and a time for peace." (Eccl. 3:1-8)
But, just as there is support for astrology in the Bible, there are very severe cautions about the improper use of astrology. We are not to seek answers about the meaning of life from any other source but God. The answers to our most vexing problems are not in the stars, but in His Word.
So, we are not to worship the Sun. Moon, and planets., We are not to take it upon ourselves to be soothsayers, to be mediums, or to be false prophets, using the Divine Gifts to make money, fooling the weak and gullible, pretending a wisdom not given to us. It so very simple.
God gave us the signs, the language, and the rules. Wisdom is understanding that time troubles us all, and we can learn from our troubles, just as Job learned.
Please, any of you who read my posts, know that I believe that it is wise to study astrology, but not for the purpose of trying to predict the future. That, in my opinion, is a mistake (sin).
To understand the signs of the times, and then to look to the Bible for wisdom on how to bring forth the best use of the energies signified, that is the beginning of wisdom. Astrologers who charge for their services, now that computers can instantly generate charts, should be ashamed.