On 5 Oct 1995, Chris Paul wrote:
> Probably they mean that the sun is in orbit around the galactic centre.
Yes, and no. The Sun and the planets circle around the center of mass
of the Solar System. However, the center of mass is inside the Sun,
fairly close to, but not quite at the center of the Sun, so it makes more
sense to consider the Sun as fixed, and not rotating. This is in
addition to the Solar Sytem's (and, thus, the Sun's) rotation around the
center of the Milky Way.