If the "center" is below the surface of the Sun there must be a tidal effect that the planets make in the workings of the Sun one would expect..the planets may be the "spoon" that stirs the Sun. Maybe there is a link between that (if a fact) and Sun spots maybe???
If the center is outside the Sun there would be a vortex effect originating from that region one would think.
I wonder about binary star systems and conclude they must orbit a center that has moved on (assuming gravity travels at a finite speed which I think could be the only way it could be..instant sounds fine but that could not be..instant means something moves from one end of the Universe to the other in er an instant..impossible and contrary to GR I expect)
Anyways the effect of following a moving center must produce a vortex effect...er it would if gravity pushes
and if not via push some major effect must be evident.
alex
