Obs. : 2008-07-20
Planet     Ly alpha
Mercury    3.648e+11
Venus      3.642e+11
Earth      3.719e+11
Mars       3.711e+11
Jupiter    3.765e+11
Saturn     3.711e+11
Uranus     3.694e+11
Neptune    3.719e+11
Pluto      3.759e+11