Obs. : 2017-03-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.565e+11
Venus      3.597e+11
Earth      3.680e+11
Mars       3.559e+11
Jupiter    3.680e+11
Saturn     3.612e+11
Uranus     3.565e+11
Neptune    3.591e+11
Pluto      3.586e+11