Obs. : 2011-08-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.985e+11
Venus      3.987e+11
Earth      4.149e+11
Mars       4.094e+11
Jupiter    4.152e+11
Saturn     4.030e+11
Uranus     4.144e+11
Neptune    4.116e+11
Pluto      4.190e+11