Obs. : 2014-04-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.904e+11
Venus      3.836e+11
Earth      3.573e+11
Mars       3.576e+11
Jupiter    3.670e+11
Saturn     3.580e+11
Uranus     3.935e+11
Neptune    3.881e+11
Pluto      3.678e+11