Obs. : 2008-07-22 Planet Ly alpha Mercury 3.642e+11 Venus 3.659e+11 Earth 3.708e+11 Mars 3.742e+11 Jupiter 3.756e+11 Saturn 3.742e+11 Uranus 3.677e+11 Neptune 3.708e+11 Pluto 3.766e+11