Obs. : 2013-08-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.043e+11
Venus      4.032e+11
Earth      4.001e+11
Mars       4.043e+11
Jupiter    4.037e+11
Saturn     4.079e+11
Uranus     3.852e+11
Neptune    3.874e+11
Pluto      4.030e+11