Obs. : 2008-06-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.379e+11
Venus      3.307e+11
Earth      3.424e+11
Mars       3.338e+11
Jupiter    3.423e+11
Saturn     3.338e+11
Uranus     3.420e+11
Neptune    3.416e+11
Pluto      3.363e+11