Obs. : 2015-05-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.581e+11
Venus      4.525e+11
Earth      4.956e+11
Mars       4.625e+11
Jupiter    4.621e+11
Saturn     4.900e+11
Uranus     4.804e+11
Neptune    4.965e+11
Pluto      5.072e+11