Obs. : 2009-11-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.525e+11
Venus      3.496e+11
Earth      3.632e+11
Mars       3.624e+11
Jupiter    3.516e+11
Saturn     3.516e+11
Uranus     3.498e+11
Neptune    3.516e+11
Pluto      3.547e+11