Obs. : 2009-04-15
Planet     Ly alpha
Mercury    3.473e+11
Venus      3.419e+11
Earth      3.365e+11
Mars       3.350e+11
Jupiter    3.269e+11
Saturn     3.379e+11
Uranus     3.350e+11
Neptune    3.269e+11
Pluto      3.264e+11