Perhaps I should post this in MPSIMS (if so, sorry manhattan).
I’ve run across this website ( http://www.siriusresearchgroup.com ) which makes some claims that there is no “procession” of the Earth and the scientific community is hiding/ignoring their “facts”.
Has anyone heard of this group or know of any debunking of their ideas? I say “debunking” because they also seem to support astrology.
I looked at the website link you provided.
The authors gave a reply to a letter from a scientist at JPL. They didn’t quote the original letter (a bad sign).
They then said they would use the courts if necessary to prove their theory (another bad, if not weird, sign).
I don’t think I will take the ‘sirius’ research group siriusly. 
Good one. 
Thanks for taking a look. (and to anyone else who dares hereafter)
I agree with you. But there’s a lot of math & astronomy they throw around that I have not looked further into, so I was first wondering if any SD’ers knew of them.