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Pluto - Smallest Planet
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| Diameter | 1100 km / 680 ml |
| Mass | 0.002 times the Earth |
| Average Temperature | -220egree C / -364 deg. F |
| Rotation Period | 6 Days 9 H |
| Tilt of axis | 50 Degree |
| Average distance from Sun | 5 900 000 000 km |
| Length of year | 248 Earth Days |
| No. of known moons | One |
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto |