Obs. : 2009-12-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.533e+11
Venus      3.520e+11
Earth      3.630e+11
Mars       3.658e+11
Jupiter    3.490e+11
Saturn     3.594e+11
Uranus     3.456e+11
Neptune    3.490e+11
Pluto      3.552e+11