Obs. : 2019-04-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.715e+11
Venus      3.684e+11
Earth      3.519e+11
Mars       3.364e+11
Jupiter    3.634e+11
Saturn     3.638e+11
Uranus     3.534e+11
Neptune    3.715e+11
Pluto      3.638e+11