Yes. Religion is a doctrine, a cult, a “following”, that guide your life, your acts, your beliefs, your faith, your decisions, your options. It doesn’t matter if this “religion” comes from faith in a “god”, a group of people “doctrine”, or a random set of numbers, symbols, cards (Tarot for example), bones, rocks, etc, that can be interpreted as signs of vision of your future. If you really believe on that and guide your life based on such things, then, for you, astrology can be considered a religion. But astrology has nothing to do, you understand that, right? It is the same as see “images” at the end of the tea cup pieces of leaves.