Obs. : 2008-10-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.394e+11
Venus      3.556e+11
Earth      3.477e+11
Mars       3.528e+11
Jupiter    3.605e+11
Saturn     3.371e+11
Uranus     3.477e+11
Neptune    3.518e+11
Pluto      3.611e+11