Obs. : 2009-12-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.716e+11
Venus      3.710e+11
Earth      3.548e+11
Mars       3.549e+11
Jupiter    3.599e+11
Saturn     3.601e+11
Uranus     3.531e+11
Neptune    3.599e+11
Pluto      3.710e+11