Obs. : 2018-07-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.331e+11
Venus      3.327e+11
Earth      3.369e+11
Mars       3.352e+11
Jupiter    3.395e+11
Saturn     3.369e+11
Uranus     3.372e+11
Neptune    3.344e+11
Pluto      3.362e+11