Obs. : 2013-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.435e+11
Venus      4.662e+11
Earth      4.164e+11
Mars       4.413e+11
Jupiter    4.351e+11
Saturn     4.435e+11
Uranus     4.335e+11
Neptune    4.542e+11
Pluto      4.722e+11