https://cohanmagazine.blogspot.com/2021/08/blog-post.html #animist #pagan
@cohanf right… the astronomical dates are also my starting point, but that gives you only four out of eight.
I actually learnt how to get them out of the JPL Horizon API from NASA down to half-second precision… (and scripted that so I don’t have to keep remembering.)
That’s why I used the “golden ratio on sun inclination” method for the other four days, it’s a good starting point for me. Sure, there’s also power in doing things at the same time, most most people I know online are in the americas and so not the same time anyway, and I don’t do big things anyway either.
See https://web.archive.org/web/20170628090744/http%3A%2F%2Fwww.astrothek.de%2Fartikel%2Fjahreskreis%2Fjahreskreis_inhalt.html if you’re interested (use a translator for the german or just look at the pretty graphs where they explain how they approximated the current common dates and found golden ratio to mostly work).
@cohanf yeah, but those references often don’t say how they got them.
I figured out how to ask the NASA’s public data system for the sun positions on specific times, scripted that, and so I can now obtain the dates for, in theory, any year (although the dates in the future are estimated, not based on exact measurements, so the times can be a few seconds off, sometimes even half a second or one second within the next 12 months). So I have my own and can just favourite+boost those of others. (I’ve had that my date was before the “usual” cargo-culted date, too.)