Obs. : 2009-09-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.430e+11
Venus      3.363e+11
Earth      3.500e+11
Mars       3.407e+11
Jupiter    3.500e+11
Saturn     3.364e+11
Uranus     3.451e+11
Neptune    3.500e+11
Pluto      3.532e+11