Obs. : 2011-07-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.003e+11
Venus      3.991e+11
Earth      3.894e+11
Mars       3.986e+11
Jupiter    3.998e+11
Saturn     4.230e+11
Uranus     3.907e+11
Neptune    3.838e+11
Pluto      3.964e+11