The 33-year repeat cycle is based on a solar year which is 365.24242424+ or 365 and eight thirty-thirds in length. The astronomical truth is that the seasonal or solar year is 365.242199 days in length. The 33-year repeat cycle is therefore accurate to within 20 seconds, while our modern calendar is, each year, in error by over 11 minutes.
Found a little more where the 561 or 33 information came from above. Found on a website discussing the Torah. I am no where near versed into that religion to understand half of what the website is saying.
Link
Very interesting!
As you can tell by my username, the Sun is of importance to me and I'm not talking about solar power.
https://www.skyscript.co.uk/sunheath.html
Found a little more where the 561 or 33 information came from above. Found on a website discussing the Torah. I am no where near versed into that religion to understand half of what the website is saying. Link