View Single Post
Dec24-11, 11:06 AM
P: 17,540
Expanding on D_H's last comment, accordking to Birkhoff's theorem for any spherically symmetric distribution of matter the exterior solution is given by the Schwarzschild solution. So the earth will continue to orbit the ball of photons until the ball of photons passes the earth, at which time earth is no longer in the exterior and things change.