Obs. : 2011-07-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.994e+11
Venus      4.003e+11
Earth      4.125e+11
Mars       4.013e+11
Jupiter    3.991e+11
Saturn     4.028e+11
Uranus     3.941e+11
Neptune    4.044e+11
Pluto      4.089e+11