Eccentricity Mercury 0.38710 0.2056 Venus 0.72333 0.0068 Earth 1.00000 0.0167 Mars 1.52369 0.0933 Jupiter 5.20283 0.048 Saturn 9.53876 0.056 Uranus 19.19139 0.046 Neptune 30.06107 0.010 Pluto (ex-planet) 39.52940 0.248 Sources: Cox (2000) ; Planetary Physical Data (Smithsonian National Air and Space Museum) . Note : Eccentricity is the RELATIVE AMOUNT that