Obs. : 2008-04-02 Planet Ly alpha Mercury 3.834e+11 Venus 3.870e+11 Earth 3.757e+11 Mars 3.637e+11 Jupiter 3.833e+11 Saturn 3.720e+11 Uranus 3.870e+11 Neptune 3.868e+11 Pluto 3.841e+11