Obs. : 2013-03-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.981e+11
Venus      3.981e+11
Earth      4.405e+11
Mars       4.010e+11
Jupiter    4.205e+11
Saturn     4.072e+11
Uranus     4.000e+11
Neptune    3.981e+11
Pluto      3.908e+11