From the Hebrew, "nakh’ash;" "to practice divination, or observe signs." This can refer to the idea that the stars take away human free will. According to the Zohar, " Everything is dependent upon astral influences, even the Torah" (Idra Rabba).
Israelite astrology teaches that the stars can speak to mankind, but that they cannot rule Israel, as YHVH has given the Israelites free agency. It is forbidden for one to let the stars dictate one's life, yet there are times with God will speak to us though them by prophecy and revelation. We must see the clear divide between gaining the stars' "influence" on people (permitted) and the worshipping of the stars or any heavenly bodies (prohibited).
In Jewish/Israel astrology there are 12 constellations, like Greek astrology. These break down to: Nisan (ṭaleh) Aries, Iyar (shor) Taurus, Sivan (te’umim) Gemini, Tammuz (sarṭan) Cancer Av (arieh) Leo, Elul (betulah) Virgo, Tishri (moznayim) Libra, Cheshvan ('akrab) Scorpio, Kislev (keshet) Sagittarius, Tevet (gedi) Capricorn, Shevat (deli) Aquarius, and Adar (dagim) Pisces.
See 4 Moses 19:14, 20:23, 35:2, 38:4; Genesis 1:14; Ezekiel; 1:1; Matthew 2:9-10, Revelation 12:1-6.