Obs. : 2013-08-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.585e+11
Venus      3.622e+11
Earth      3.920e+11
Mars       3.652e+11
Jupiter    3.652e+11
Saturn     3.802e+11
Uranus     3.714e+11
Neptune    3.828e+11
Pluto      3.943e+11