Obs. : 2023-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.824e+08
Venus      8.656e+08
Earth      8.747e+08
Mars       8.538e+08
Jupiter    8.824e+08
Saturn     8.979e+08
Uranus     8.725e+08
Neptune    9.061e+08
Pluto      8.924e+08