Obs. : 2011-09-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.284e+11
Venus      4.285e+11
Earth      4.423e+11
Mars       4.326e+11
Jupiter    4.374e+11
Saturn     4.303e+11
Uranus     4.397e+11
Neptune    4.423e+11
Pluto      4.560e+11