PaulDavisTheFirst on Nostr: 1000 years ago, the people who lived at Chaco Canyon and the area around it knew ...
1000 years ago, the people who lived at Chaco Canyon and the area around it knew about the 18.6 year lunar cycle, in which the rise/set position of the moon slowly moves between north and south.
This is a generational project - you need 3+ generations to confirm the pattern, or 56 years of tracking and comparison. Globally, humans might have known this since 2500BC!
Tonight is the END of the lunar cycle - the moon will be at the northern-most position of its cycle - aka the "lunastice".
This is a generational project - you need 3+ generations to confirm the pattern, or 56 years of tracking and comparison. Globally, humans might have known this since 2500BC!
Tonight is the END of the lunar cycle - the moon will be at the northern-most position of its cycle - aka the "lunastice".