Obs. : 2011-10-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.023e+11
Venus      5.023e+11
Earth      4.394e+11
Mars       4.497e+11
Jupiter    4.277e+11
Saturn     4.778e+11
Uranus     4.315e+11
Neptune    4.484e+11
Pluto      4.955e+11