Obs. : 2012-08-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.534e+11
Venus      4.423e+11
Earth      4.025e+11
Mars       4.601e+11
Jupiter    4.320e+11
Saturn     4.638e+11
Uranus     3.879e+11
Neptune    3.867e+11
Pluto      4.279e+11