Obs. : 2018-07-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.538e+11
Venus      3.535e+11
Earth      3.638e+11
Mars       3.643e+11
Jupiter    3.630e+11
Saturn     3.638e+11
Uranus     3.597e+11
Neptune    3.638e+11
Pluto      3.637e+11