Obs. : 2009-01-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.577e+11
Venus      3.542e+11
Earth      3.526e+11
Mars       3.512e+11
Jupiter    3.577e+11
Saturn     3.455e+11
Uranus     3.522e+11
Neptune    3.572e+11
Pluto      3.512e+11