Harald88 you are mistaken with your interpretation of the transverse Doppler effect I strongly recommend that you withdraw your modification because it most probably adds to confusion You should first study Bradley s theorem and its meaning in optics of moving bodies I recommend that you consult E Herlt und N Sali Spezielle Relativit tstheorie Akademie Verlag Berlin 1978 Section 1 2 Elektrodynamik und ausgezeichnetes Bezugssystem