For nitpicky physicists, all objects in a system orbit each other, so the Earth as well as the sun and other planets orbit a common centre (which happens to be

For nitpicky physicists, all objects in a system orbit each other, so the Earth as well as the sun and other planets orbit a common centre (which happens to be inside the sun). For more obtuse people, they might nitpick that the system should include the entire milky way (so the earth as well as the sun rotate around the centre of the galaxy).