Obs. : 2011-08-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.027e+11
Venus      3.922e+11
Earth      4.084e+11
Mars       3.862e+11
Jupiter    3.980e+11
Saturn     4.021e+11
Uranus     4.037e+11
Neptune    4.055e+11
Pluto      4.045e+11