Animist Origins of Babylonian Celestial Religion
“To arrive at a proper comprehension of Babylonian religious doctrines it is necessary to understand the nature of the astrological speculations of the ancient Chaldeans.
They recognized at an early period that eternal and unchangeable laws underlay planetary motion, and seem to have been able to forecast eclipses. Soon also did they begin to identify the several heavenly bodies with the gods. Thus the path of the sun was known as the”‘way of Anu,” and the course of the moon and planets they determined with reference to the sun’s ecliptic or pathway.

This illustration is from a page on Babylonian astronomy hosted by the science faculty of the Mathematical Institute of Utrecht University.
http://www.staff.science.uu.nl/~gent0113/babylon/babybibl_fixedstars.htm
A dedicated work assessing the influences of Chaldean astrology on later Greek and Roman knowledge can be found in Franz Cumont, Astrology and Religion Among the Greeks and Romans, 1912.
Full text available for download at several locations on the net, including:
http://theosnet.net/dzyan/miscpubs/Astrology_and_Religion.pdf
It is strange, too, that they should have employed the same ideograph for the word ‘star’ and the word ‘god,’ the only difference being that in the case of a god they repeated the sign three times. If the sun and moon under animistic law are regarded as gods, it stands to reason that the stars and planets must also be looked upon as lesser deities.
Indeed, poets still use such an expression regarding them as ‘the host of heaven,’ and we frequently encounter in classical authors the statement that the stars in their courses fought for such and such a person.

This illustration is from a page on Babylonian astronomy hosted by the science faculty of the Mathematical Institute of Utrecht University.
http://www.staff.science.uu.nl/~gent0113/babylon/babybibl_fixedstars.htm
A dedicated work assessing the influences of Chaldean astrology on later Greek and Roman knowledge can be found in Franz Cumont, Astrology and Religion Among the Greeks and Romans, 1912.
Full text available for download at several locations on the net, including:
http://theosnet.net/dzyan/miscpubs/Astrology_and_Religion.pdf
This is tantamount to saying that the stars possess volition, and even although omens were looked for out of their movements, it may have been believed that these were the outcome of volition on the part of the stars themselves as deities or deific individuals.
Again we can see how the idea that the gods reside in ‘heaven’ —that is, the sky—arose from early astrological conceptions. The gods were identified in many cases with the stars, therefore it is only natural to suppose that they resided in the sky-region. It is, indeed, one of the most difficult matters for even an intelligent and enlightened man in our enlightened age to dissociate the idea of God from a residence in the sky or ‘somewhere up there.’

This illustration is from a page on Babylonian astronomy hosted by the science faculty of the Mathematical Institute of Utrecht University.
http://www.staff.science.uu.nl/~gent0113/babylon/babybibl_fixedstars.htm
A dedicated work assessing the influences of Chaldean astrology on later Greek and Roman knowledge can be found in Franz Cumont, Astrology and Religion Among the Greeks and Romans, 1912.
Full text available for download at several locations on the net, including:
http://theosnet.net/dzyan/miscpubs/Astrology_and_Religion.pdf
The idea of space, too, must have assisted in such a conception as the residence of the gods in the upper regions of air. The earth would not be large enough for them, but the boundless vault above would afford them plenty of space in which to dwell.
Again, the sun and moon being gods, it would be only natural for the other deities to dwell beside them, that is, in the ‘heaven of Anu,’ as the Babylonians called the sky. It has been suggested that the conception of a pantheon dwelling in the sky originated in theological processes forwarded by a school or priesthood, but there is no reason to suppose that this was so, and the possibilities are easily covered by the circumstances of the animistic theory.”
Lewis Spence, Myths and Legends of Babylonia and Assyria, 1917, pp. 233-5.