Gann Astronomy or Gann Astrology. Many a times people question whether W. D. Gann used astrology or astronomy for market analysis. Gann Commodities Course has one chapter and few mentions in the book. Gann Analysts are divided on this subject. I firmly believe he used both astronomy or astrology along with other mathematical methods. Every security has a Governing Planet and whose cycle can be used to time that security. Nifty is also governed by Planet which we learn in our Gann Time Analysis Course. The Planetary level for Nifty index are shown on chart. Traders can use these levels for their trade bias and make decent profits. The levels are shown on Hourly Chart and keen observer will see how they have worked till date. If you want to divide deep into Time Analysis you are welcome to learn it here.