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The Krononaut Moon Project 🌑

Date of Easter (Paschal computus)
🔗 Wikipedia.org/wiki/Date_of_Eas

"As a , the date of is determined in each year through a calculation known as computus ( for ) … celebrated on the 1st Sunday after the Paschal , which is the 1st full moon on or after 21 March (a fixed approximation of the March )…"

The Northern , and Southern , usually occurs on March 20.
Cont…

🔗 commons.wikimedia.org/wiki/Fil
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Jul 31, 2023, 17:32 · · · 5 · 6

@KronoMoon I saw that very calendar in a museum in Ravenna, this summer!

@JacquelineJannotta
Good eye! About how large is it? Calculating the date for Easter, and extending that to other "moveable feasts" including Good Friday, is a biblical undertaking. This convenient calendar is a real beauty for sure. Thx for the field report! 🗓️

@KronoMoon from memory, I’d say it’s maybe 3 feet square. And yes, very beautiful, chiseled in marble. I took this photo, but (slaps head) did not get the full description with measurements.