Obs. : 2011-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.993e+11
Venus      3.936e+11
Earth      3.869e+11
Mars       3.993e+11
Jupiter    3.865e+11
Saturn     3.989e+11
Uranus     3.948e+11
Neptune    3.993e+11
Pluto      3.894e+11