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Does the 12 year cycle of the Chinese calender correspond to the orbit of Jupiter around the sun ( or did it ever ) and if so, does the 60 year cycle of the earthly branches and heavenly stems correspond in any way ( or did it ever ) to the combined orbits of Jupiter and Saturn, and would there be any reference material I any use to establish this Thankyou

Does the sixty year cycle in chinese astrology have anything to do with the orbit of Jupiter ( approx 12 years X 5 = 60 years ) combined with the orbit of Saturn ( approx 30 years X 2 = 60 years )around the Sun.