#cycles
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The Metonic Cycle: Why the Moon Repeats Every Nineteen Years
Nineteen solar years and 235 lunar months come out within two hours of each other. That near-coincidence built the calendars, sits in the gears of the Antikythera mechanism, and brings your birth lunation back roughly every nineteenth birthday.
7 min read·Aug 7
Your Personal Year Number: The Nine-Year Cycle You Are In Now
The personal year number places you somewhere in a nine-year cycle, from the 1 that opens it to the 9 that clears it out. Add your birth day and month to the current year and reduce.
6 min read·Aug 6
Great Conjunctions: Jupiter and Saturn and the Turning of Eras
The Jupiter-Saturn conjunction recurs every roughly twenty years and slowly walks through the elements, forming the backbone of mundane astrology.
9 min read·Jun 3