Obs. : 2009-12-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.690e+11
Venus      3.559e+11
Earth      3.472e+11
Mars       3.419e+11
Jupiter    3.629e+11
Saturn     3.367e+11
Uranus     3.549e+11
Neptune    3.629e+11
Pluto      3.690e+11