Obs. : 2009-03-21
Planet     Ly alpha
Mercury    1.193e+12
Venus      1.204e+12
Earth      1.160e+12
Mars       1.163e+12
Jupiter    1.131e+12
Saturn     1.141e+12
Uranus     1.193e+12
Neptune    1.131e+12
Pluto      1.106e+12