Obs. : 2013-07-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.947e+11
Venus      3.830e+11
Earth      4.137e+11
Mars       4.033e+11
Jupiter    4.033e+11
Saturn     4.296e+11
Uranus     4.051e+11
Neptune    4.061e+11
Pluto      4.137e+11