Obs. : 2019-03-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.466e+11
Venus      3.423e+11
Earth      3.302e+11
Mars       3.333e+11
Jupiter    3.346e+11
Saturn     3.355e+11
Uranus     3.459e+11
Neptune    3.466e+11
Pluto      3.366e+11