Obs. : 2015-10-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.214e+11
Venus      4.361e+11
Earth      4.005e+11
Mars       4.279e+11
Jupiter    4.279e+11
Saturn     3.816e+11
Uranus     3.823e+11
Neptune    3.798e+11
Pluto      3.813e+11