Obs. : 2008-07-15 Planet Ly alpha Mercury 3.656e+11 Venus 3.637e+11 Earth 3.715e+11 Mars 3.725e+11 Jupiter 3.768e+11 Saturn 3.725e+11 Uranus 3.689e+11 Neptune 3.715e+11 Pluto 3.765e+11