Obs. : 2017-08-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.809e+11
Venus      4.010e+11
Earth      3.625e+11
Mars       3.853e+11
Jupiter    3.691e+11
Saturn     3.727e+11
Uranus     3.788e+11
Neptune    3.625e+11
Pluto      3.669e+11