Obs. : 2019-04-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.707e+11
Venus      3.687e+11
Earth      3.509e+11
Mars       3.401e+11
Jupiter    3.573e+11
Saturn     3.614e+11
Uranus     3.604e+11
Neptune    3.707e+11
Pluto      3.614e+11