Obs. : 2009-12-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.679e+11
Venus      3.592e+11
Earth      3.482e+11
Mars       3.453e+11
Jupiter    3.579e+11
Saturn     3.441e+11
Uranus     3.533e+11
Neptune    3.579e+11
Pluto      3.679e+11