Obs. : 2009-10-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.508e+11
Venus      3.539e+11
Earth      3.482e+11
Mars       3.612e+11
Jupiter    3.514e+11
Saturn     3.590e+11
Uranus     3.442e+11
Neptune    3.488e+11
Pluto      3.585e+11