Obs. : 2008-09-20
Planet     Ly alpha
Mercury    5.894e+11
Venus      5.894e+11
Earth      5.902e+11
Mars       5.894e+11
Jupiter    6.043e+11
Saturn     5.646e+11
Uranus     5.867e+11
Neptune    5.924e+11
Pluto      6.053e+11