Obs. : 2009-07-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.472e+11
Venus      3.504e+11
Earth      3.484e+11
Mars       3.437e+11
Jupiter    3.464e+11
Saturn     3.662e+11
Uranus     3.440e+11
Neptune    3.468e+11
Pluto      3.555e+11