Astrobionomy= bio-physico-chemical basis of astrology
It could be that different astronomical positions of different starts, planets, and other celestial bodies with all their relative positions in the space with all their electro-magnetic radiation and gravitation force etc, or what ever celestial power, physical or chemical force/interaction.... determine the relative interplay of bio-molecules in the cells of a particular person at the time of birth or even at the time of fertilization and pre-dispose certain genes/signal molecules and hence allow certain traits to manifest in them and which will go a long way in determining the nature of that particular person and his behavioral , his ability to react in a certain way to a particular situation and hence ultimately determine his fate and destiny.