"Michael McNeil" wrote in message
news:fc2e7c15db7f162563c7f030a8196ec2.45219@mygate .mailgate.org...
How many explanations fit the bill for explaining errors in Newton's
Celestial Mechanics? I have heard that the idea the apparent centre of
the sun not being the centre of mass will do it as well as the
aberrations required to make relativity fit.

I came across another one too but lost the link.

I believe the two biggies are ...

the advance of the perihelion of Mercury
the degree to which light is bent around massive bodies

I'm not aware of any problem in Newton with the centre of mass of the solar
system not being the centre of the Sun. Should fit perfectly well.