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Updated: 2/3/2012    9:28:25 PM

Planetary Orbits as Seen from Pluto




Solar System Solar System Solar System Solar System Solar System Solar System Solar System Solar System

Planetary Orbits

Place your mouse over the orbital paths for each planet.
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
diameter (Earth=1) 0.382 0.949 1 0.532 11.209 9.44 4.007 3.883 0.180
diameter (km) 4,878 12,104 12,756 6,787 142,800 120,000 51,118 49,528 2,300
mass (Earth=1) 0.055 0.815 1 0.107 318 95 15 17 0.002
mean distance from Sun (AU) 0.39 0.72 1 1.52 5.20 9.54 19.18 30.06 39.44
orbital period (Earth years) 0.24 0.62 1 1.88 11.86 29.46 84.01 164.8 247.7
orbital eccentricity 0.2056 0.0068 0.0167 0.0934 0.0483 0.0560 0.0461 0.0097 0.2482
mean orbital velocity (km/sec) 47.89 35.03 29.79 24.13 13.06 9.64 6.81 5.43 4.74
rotation period (in Earth days) 58.65 -243* 1 1.03 0.41 0.44 -0.72* 0.72 -6.38*
inclination of axis (degrees) 0.0 177.4 23.45 23.98 3.08 26.73 97.92 28.8 122
mean temperature at surface (C) -180 to 430 465 -89 to 58 -82 to 0 -150 -170 -200 -210 -220
gravity at equator (Earth=1) 0.38 0.9 1 0.38 2.64 0.93 0.89 1.12 0.06
escape velocity (km/sec) 4.25 10.36 11.18 5.02 59.54 35.49 21.29 23.71 1.27
mean density (water=1) 5.43 5.25 5.52 3.93 1.33 0.71 1.24 1.67 2.03
atmospheric composition none CO2 N2 + O2 CO2 H2+He H2+He H2+He H2+He HCH4
number of moons 0 0 1 2 63 60 27 13 3
rings? no no no no yes yes yes yes no

* Negative values of rotation period indicate that the planet rotates in the direction opposite to that in which it orbits the Sun. This is called retrograde rotation.

The eccentricity (e) is a number which measures how elliptical orbits are. If e=0, the orbit is a circle. All the planets have eccentricities close to 0, so they must have orbits which are nearly circular.

The Sun and Moon     The Solar System


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