English: Diagram of the size of the universe over time from origin at t = 0 to time of universe t_U. The particle horizon is constantly expanding with the speed of light c:
Radius of end of inflationary period (Schwarzschild radius of universe):
r_S = t_U * c = 14283 Mpc = 46,6e9 ly
Co-moving radius of the cosmic microwave background (CMB):
r_CMB = 14000 Mpc = 45,7e9 ly
Hubble radius at Hubble time t_H:
r_H = t_H * c = 4480 Mpc = 14,6e9 ly
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