Obs. : 2017-06-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.669e+11
Venus      3.719e+11
Earth      3.632e+11
Mars       3.669e+11
Jupiter    3.688e+11
Saturn     3.610e+11
Uranus     3.709e+11
Neptune    3.624e+11
Pluto      3.610e+11