Obs. : 2008-05-09
Planet     Ly alpha
Mercury    3.861e+11
Venus      3.845e+11
Earth      3.696e+11
Mars       3.786e+11
Jupiter    3.558e+11
Saturn     3.782e+11
Uranus     3.673e+11
Neptune    3.563e+11
Pluto      3.624e+11