Obs. : 2011-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.591e+11
Venus      4.591e+11
Earth      4.422e+11
Mars       4.857e+11
Jupiter    4.422e+11
Saturn     4.776e+11
Uranus     4.437e+11
Neptune    4.401e+11
Pluto      4.397e+11