Obs. : 2013-09-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.959e+11
Venus      3.923e+11
Earth      4.001e+11
Mars       3.929e+11
Jupiter    3.895e+11
Saturn     3.904e+11
Uranus     3.958e+11
Neptune    3.993e+11
Pluto      3.939e+11