Obs. : 2008-12-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.523e+11
Venus      3.527e+11
Earth      3.471e+11
Mars       3.464e+11
Jupiter    3.523e+11
Saturn     3.414e+11
Uranus     3.486e+11
Neptune    3.527e+11
Pluto      3.464e+11