# Classically, how would an electron orbiting a proton in a perfectly circular orbit emit photons? [duplicate]

Obviously, with quantum mechanics, we know particles don't really orbit in electric fields. From what I know, clasically, Bremsstrahlung radiation would occur if an electron was deflected or accelerated around a proton, and the energy of that photon would be equivalent to the energy lost. But if an electron did classically orbit a proton in a perfectly circular orbit, it would never change energy and could never emit a photon, yet it would be accelerated to form a circular path. How would the electron emit any radiation if it was not changing energy in a circular path?