Obs. : 2008-10-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.356e+11
Venus      3.530e+11
Earth      3.490e+11
Mars       3.485e+11
Jupiter    3.572e+11
Saturn     3.369e+11
Uranus     3.494e+11
Neptune    3.513e+11
Pluto      3.584e+11