Obs. : 2016-12-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.630e+11
Venus      3.712e+11
Earth      3.638e+11
Mars       3.700e+11
Jupiter    3.465e+11
Saturn     3.551e+11
Uranus     3.640e+11
Neptune    3.700e+11
Pluto      3.630e+11