Monday, February 14, 2022

Our Wonky Moon and Lunar Alignments

 Last week we continued with solar alignments at sites like Chankillo, Peru (see this wonderful video) and spent some time on the lunar orbit. Because the moon's orbital cycle is 18.6 years to repeat its tilting pattern, it is very hard to visualize. The best explanation I have found is here, at the University of Massachusetts Sunwheel website (a sort of mini-Stonehenge created by Prof. Judith Young).

            Thirteen towers at Chankillo. Source: photo by David Edgar, Wikipedia

Another wonderful reference is "Ancient Observatories," by Deborah Scherrer at the Solar Center at Stanford University.

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