3 ms·

Can you go further and say that the Earth and sun "really" are orbiting the center-of-mass of the milky way? And does it end there? I guess that galaxies are f

by NiloCK 1y ago

Can you go further and say that the Earth and sun "really" are orbiting the center-of-mass of the milky way? And does it end there? I guess that galaxies are far enough apart from one another to escape this logic with their relative escape velocity.

pdonis 1y ago
> 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.