Obs. : 2023-06-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.026e+08
Venus      9.124e+08
Earth      8.573e+08
Mars       9.140e+08
Jupiter    8.605e+08
Saturn     8.615e+08
Uranus     8.683e+08
Neptune    8.600e+08
Pluto      8.494e+08