Obs. : 2019-11-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.016e+08
Venus      6.063e+08
Earth      6.059e+08
Mars       5.985e+08
Jupiter    6.080e+08
Saturn     6.097e+08
Uranus     6.051e+08
Neptune    6.061e+08
Pluto      6.097e+08