Obs. : 2019-07-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.368e+11
Venus      3.368e+11
Earth      3.533e+11
Mars       3.373e+11
Jupiter    3.588e+11
Saturn     3.539e+11
Uranus     3.410e+11
Neptune    3.483e+11
Pluto      3.533e+11