Obs. : 2013-12-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.012e+11
Venus      4.126e+11
Earth      4.024e+11
Mars       3.865e+11
Jupiter    3.945e+11
Saturn     4.010e+11
Uranus     4.371e+11
Neptune    4.270e+11
Pluto      4.030e+11