Obs. : 2008-12-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.395e+11
Venus      3.424e+11
Earth      3.437e+11
Mars       3.395e+11
Jupiter    3.424e+11
Saturn     3.347e+11
Uranus     3.415e+11
Neptune    3.422e+11
Pluto      3.418e+11