Obs. : 2008-10-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.351e+11
Venus      3.556e+11
Earth      3.477e+11
Mars       3.519e+11
Jupiter    3.594e+11
Saturn     3.361e+11
Uranus     3.477e+11
Neptune    3.513e+11
Pluto      3.610e+11