Obs. : 2018-03-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.498e+11
Venus      3.457e+11
Earth      3.375e+11
Mars       3.473e+11
Jupiter    3.431e+11
Saturn     3.462e+11
Uranus     3.457e+11
Neptune    3.538e+11
Pluto      3.462e+11