Obs. : 2013-10-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.097e+11
Venus      4.096e+11
Earth      3.682e+11
Mars       4.099e+11
Jupiter    4.135e+11
Saturn     4.097e+11
Uranus     3.754e+11
Neptune    3.784e+11
Pluto      4.076e+11