Obs. : 2023-01-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.599e+08
Venus      8.600e+08
Earth      8.874e+08
Mars       8.925e+08
Jupiter    8.330e+08
Saturn     8.580e+08
Uranus     8.747e+08
Neptune    8.317e+08
Pluto      8.599e+08