@JanHudec In other words, after trillions of years, would the resistance generated by the centrifugal force eventually create an equilibrium, and return the frame of reference to zero? if that makes sense.

@JanHudec I kind of understand, but I was trying to understand whether those measurement points would be directly effected by the existence of the outside obverser, i.e. without the outside observer acting as a frame of reference, the person the surface shouldn't feel the centrifugal force, because relatively the star wouldn't be rotating at all. That is unless there is a universal axis. Or, are you saying that centrifugal force would be felt because the rotational force is being applied to the star directly and not to the astronaut on the surface?

@JanHudec Say for example, the universe is populated by a single neutron star and two astronauts. One astronaut is standing on the surface of the star, the other is orbiting around it at half the speed of light. From each astronaut's point of view, they are each the frame of reference to which the other is moving, according to relativity, which means to the one orbiting, the star is spinning, and to the one standing the other is orbiting. Who feels the centrifugal force? and what would happen if you took one of the astronauts out of existence?