Ornament of Stainless Light - An Exposition of the Kalacakra Tantra — by Khedrup Norsang Gyatso (Library of Tibetan Classic - volume 14)
The Kalacakra texts present an amazingly detailed theory of cosmology and astronomy, especially about the movements of the various celestial bodies.
Myriad Worlds — by Jamgon Kongtrul - The Treasury of Knowledge - Volume 1
Describes four major cosmological systems found in the Tibetan tradition - those associated with the Hinayana, Mahayana, Kalachakra and Dzogchen teachings - each more subtle and profound than the last.
— lectures by Manly P. Hall
1 - Zodiac & the Great Platonic Year
2 - Astrology & the Universal Cosmology
3 - Planets & the Ancient Gods
4 - Great Solar Symbol of the Messiah
5 - Journey of the Human Soul through Astrological Cycles