RE: https://telescoper.blog/2026/04/03/finding-easter/

I'm an astronomer, and I teach at a Catholic college (though I'm not religious myself).

I had absolutely no idea how complicated the date of Easter is. Wow.

@sundogplanets

I never understood why it always changes.

@grb090423 Backwards compatibility. It's tied to a Jewish holiday, and the Jewish lunisolar calendar is built radically differently from the solar-dominant Roman calendars that grew dominant in the Christian parts of Europe.

@sundogplanets

@riley @sundogplanets

Thank you for explaining this. I did not know 👍🙂

@grb090423 You might also find this tidbit intriguing: https://toot.cat/@riley/116249726406937771 @sundogplanets

@riley @sundogplanets

I did. Thanks! 👍🙂