What Are the Oldest Parts of Vedic Astrology?

Vadi culture existed in iran, afghanistan and northern india. It was interacting with sumerian culture thousands of years ago. Vadic astrologers such as varha mehira were migrations into india. The sun god who was in the temple wears boots that are worn in a more what we now call iran afghanistan area. So when we say how old are parts of it, to me, india has within it the living tradition of what was within the babylonianto ges of ancient i love it.