> Can you go further and say that the Earth and sun "really" are orbiting the center-of-mass of the milky way? Not according to the definition I gave. Calculat

> Can you go further and say that the Earth and sun "really" are orbiting the center-of-mass of the milky way? Not according to the definition I gave. Calculate the acceleration of the Earth and Sun towards the center of the Milky Way and compare it with the Earth's acceleration towards the Sun.