And once you can convert any Gregorian date to/from a lunar date (i.e. a position in that cycle) (also very doable), Computus becomes simple
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Replying to @qntm
Easter falls on the first Sunday following the "Paschal full Moon".
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Replying to @qntm
The "Paschal full Moon" is the first ecclesiastical full Moon on or after the ecclesiastical Northern Hemisphere spring equinox.
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Replying to @qntm
Neither the ecclesiastical full Moon nor the ecclesiastical Northern Hemisphere spring equinox are derived from astronomical observations...
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Replying to @qntm
If they were derived from astronomical observations, this would all be a lot easier!
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Replying to @qntm
The ecclesiastical Northern Hemisphere spring equinox is 21 March by definition. Okay, that part is actually easier...
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Replying to @qntm
Meanwhile, the ecclesiastical full Moon is the 14th day of the lunar month. The lunar month, you say? In the lunar calendar?
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Replying to @qntm
If only there was an easy way to convert the Gregorian calendar to this lunar calendar. But as far as I can tell, nobody does this!
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Replying to @qntm
In fact, the actual lunar calendar itself seems to be completely missing from the literature. It's really bizarre.
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Replying to @qntm
lunar is more hunter gatherer, solar dominates equatorial and long term settlements. so lunar never caught on.
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Weird, I would have thought solar dominated any part of the world with recognisable seasons, not equatorial regions?
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Replying to @qntm
seasons vary a lot, monsoon regions come down to 3 seasons, rainforests lack seasons. moon more relevant on long polar nights.
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