Obs. : 2009-04-27 Planet Ly alpha Mercury 3.759e+11 Venus 3.655e+11 Earth 3.588e+11 Mars 3.655e+11 Jupiter 3.574e+11 Saturn 3.655e+11 Uranus 3.655e+11 Neptune 3.574e+11 Pluto 3.562e+11