Obs. : 2013-08-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.869e+11
Venus      3.894e+11
Earth      4.127e+11
Mars       4.025e+11
Jupiter    4.089e+11
Saturn     4.023e+11
Uranus     4.278e+11
Neptune    4.205e+11
Pluto      4.068e+11