Obs. : 2008-07-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.466e+11
Venus      3.432e+11
Earth      3.492e+11
Mars       3.575e+11
Jupiter    3.567e+11
Saturn     3.509e+11
Uranus     3.444e+11
Neptune    3.461e+11
Pluto      3.563e+11