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| The Basics |
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Pluto |
| Average Distance from Sun |
39.482 AU
5.9 billion km
3.7 billion miles |
| Minimum Distance from Sun |
29.658 AU
4.4 billion km
2.8 billion miles |
| Maximum Distance from Sun |
49.305 AU
7.4 billion km
4.6 billion miles |
Orbit period
around Sun |
248 years |
| Surface temperature |
-387 Fahrenheit
-233 Celsius
40 Kelvin |
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Pluto |
Charon |
| Radius |
1,140-1200 km
680-720 miles |
600-650 km
350-400 miles |
| Mass |
1.3 x 1022 kg
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0.16 x 1022 kg
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| Density |
1.75 -2.15 gm/cm3
about twice density of water |
1.3-2.0 gm/cm3 |
| Surface composition |
Frozen water, nitrogen, methane, carbon monoxide |
Water ice |
| Atmospheric composition |
nitrogen, methane, carbon monoxide |
No detectable atmosphere |
| Spin period |
6.39 days |
6.39 days |
Orbital period
around Pluto |
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6.39 days |
For More Information:
NASA Solar System Site: Pluto Facts
http://solarsystem.nasa.gov/planets/profile.cfm?
JPL Solar System Page: Pluto
http://www.jpl.nasa.gov/solar_system/planets/pluto_index.html
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