Obs. : 2008-05-28 Planet Ly alpha Mercury 3.777e+11 Venus 3.782e+11 Earth 3.728e+11 Mars 3.787e+11 Jupiter 3.668e+11 Saturn 3.793e+11 Uranus 3.745e+11 Neptune 3.718e+11 Pluto 3.697e+11