Obs. : 2008-09-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.495e+11
Venus      3.495e+11
Earth      3.453e+11
Mars       3.495e+11
Jupiter    3.514e+11
Saturn     3.432e+11
Uranus     3.439e+11
Neptune    3.482e+11
Pluto      3.533e+11