Obs. : 2009-04-04 Planet Ly alpha Mercury 3.467e+11 Venus 3.477e+11 Earth 3.344e+11 Mars 3.422e+11 Jupiter 3.282e+11 Saturn 3.344e+11 Uranus 3.422e+11 Neptune 3.282e+11 Pluto 3.234e+11