Obs. : 2011-08-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.018e+11
Venus      3.999e+11
Earth      4.027e+11
Mars       4.008e+11
Jupiter    3.913e+11
Saturn     4.056e+11
Uranus     3.914e+11
Neptune    3.964e+11
Pluto      4.075e+11