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The Solar System

The Planets - Summary.

  Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
Mass 0·05 0·8 1·0 0·1 318 95 14·5 17 0·002
Diameter 4·9 12·0 12·8 6·8 143 120 51 49·5 2.3
Orbit Time 0·24 0·62 1·0 1·9 12 29·5 84 165 248
Distance 58 108 150 228 780 1430 2870 4500 5900
Orbital Speed 48 35 30 24 13 10 7 5·5 4·8

Mass is given relative to the Earth.

Diameter is given in thousands of kilometres.

Orbit time is given in years.

Distance from the planet to the Sun is given in millions of kilometres.
The distance is an average value for the slightly elliptical orbit.

Orbital speed is given (approximately) in kilometres per second.
Notice that the orbital speed
decreases as the distance from the Sun increases.

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