Obs. : 2009-12-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.699e+11
Venus      3.534e+11
Earth      3.540e+11
Mars       3.509e+11
Jupiter    3.720e+11
Saturn     3.375e+11
Uranus     3.689e+11
Neptune    3.720e+11
Pluto      3.611e+11