Obs. : 2023-05-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.212e+08
Venus      8.958e+08
Earth      8.974e+08
Mars       8.958e+08
Jupiter    9.188e+08
Saturn     8.898e+08
Uranus     9.296e+08
Neptune    8.912e+08
Pluto      8.790e+08