Obs. : 2015-10-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.801e+11
Venus      4.799e+11
Earth      4.048e+11
Mars       4.814e+11
Jupiter    4.814e+11
Saturn     4.411e+11
Uranus     3.985e+11
Neptune    4.155e+11
Pluto      4.326e+11