Obs. : 2009-05-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.607e+11
Venus      3.534e+11
Earth      3.473e+11
Mars       3.573e+11
Jupiter    3.451e+11
Saturn     3.650e+11
Uranus     3.504e+11
Neptune    3.451e+11
Pluto      3.473e+11