Obs. : 2008-10-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.423e+11
Venus      3.636e+11
Earth      3.493e+11
Mars       3.558e+11
Jupiter    3.616e+11
Saturn     3.397e+11
Uranus     3.490e+11
Neptune    3.551e+11
Pluto      3.633e+11