Well it's pretty clear in the Bible that astrology is wrong. As an example, it would fall
Deuteronomy 18:9-14
"9 “When you enter the land the Lord your God is giving you, be very careful not to imitate the detestable customs of the nations living there. 10 For example, never sacrifice your son or daughter as a burnt offering.[
a] And do not let your people practice fortune-telling, or use sorcery, or interpret omens, or engage in witchcraft, 11 or cast spells, or function as mediums or psychics, or call forth the spirits of the dead. 12 Anyone who does these things is detestable to the Lord. It is because the other nations have done these detestable things that the Lord your God will drive them out ahead of you. 13 But you must be blameless before the Lord your God. 14 The nations you are about to displace consult sorcerers and fortune-tellers, but the Lord your God forbids you to do such things.”
To answer your question further. There no evidence that astrology has any basis in fact. The fact that God guided the magi to the birthplace of Christ in no way implies that the magi were in general able to gain any other truth from astrology. The "star" they say may or may not have been miraculous, we really have no idea.
Christians gain guidance through the Holy Spirit living in us, working the the "normal" e.g. our thoughts & emotions, the people around us, the Bible, rather than miraculous signs or through the paranormal. Getting specific direction (like the Magi received)., would fall into the unusual, rather than the typical experience of Christians.