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Pluto


The final planet of the Solar system is Pluto, a frozen ball of gasses. Together with its moon, Charon, some consider it a double planet. Yet others don't consider it a planet at all, but the furthest most Kuniper Belt object.

It has the most eccentric orbit of any planet, ranging from 4.4 billion km to 7.4 billion km. For 20 years out of each 248 year orbit it is actually closer to the Sun than Neptune (but because of the difference in orbital inclination it will never hit). Charon is more than half the diameter of Pluto.


Orbital Distance:   29.650 AU - 49.280 AU (average 39.500 AU)
Eccentricity:       0.248
Local Year:         90,465.00 days (247.7 years)
Orbital Velocity:   4.7 km/s (average)
Inclination:        17.15°
Local Day:          6.375 day (6d 9h 0m 17s) retrograde
Axial Tilt:         122.460°

Diameter:           2,324 km
Composition:        Mainly frozen gasses
Density:            2.00 g/cm3
Mass:               1.31 x 1016 tonnes (0.0022 earths)
Gravity:            0.06 G
Escape Velocity:    1.18 km/s
Area:               16.968 million km2
Surface Material:   Nitrogen ice, methane ice, and carbon monoxide ice
Atmosphere:         Very thin nitrogen
Pressure:           0.001 atm
Albedo:             0.48
Temperature:        -230°C

 


Satellite        Distance       Month         Day   Diameter
Charon          19,000 km     6.400 d     6.400 d      0.093

 

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