Obs. : 2009-09-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.442e+11
Venus      3.362e+11
Earth      3.491e+11
Mars       3.407e+11
Jupiter    3.491e+11
Saturn     3.360e+11
Uranus     3.450e+11
Neptune    3.491e+11
Pluto      3.529e+11