Obs. : 2013-12-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.920e+11
Venus      3.678e+11
Earth      3.942e+11
Mars       4.279e+11
Jupiter    3.955e+11
Saturn     4.053e+11
Uranus     3.923e+11
Neptune    3.821e+11
Pluto      3.797e+11