Obs. : 2013-10-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.387e+11
Venus      4.558e+11
Earth      4.163e+11
Mars       4.284e+11
Jupiter    4.284e+11
Saturn     4.387e+11
Uranus     4.174e+11
Neptune    4.331e+11
Pluto      4.546e+11