Pluto

The outermost planet in our solar system and it′s double Charon. Pluto is much smaller than the Moon. Its highly eccentric orbit, with an average radius of 39.4 AU sometimes takes it within the orbit of Neptune. Pluto has a very thin atmosphere consisting mainly of methane and nitrogen. The average surface temperature is 50 K.


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Equatorial diameter 2300000 mClip
Average Density 2030 kgm-3Clip
Axial tilt 57.5 degreesClip
Rotational period 6.38 hoursClip
Average surface temperature -220 CClip
Maximum apparent magnitude 13.6 Clip
Aphelion 7375000000000 mClip
Perihelion 4425000000000 mClip
Orbital tilt 17.2 degreesClip
Orbital period 248.54y y=Earth year, d=Earth dayClip
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See also: Earth, Jupiter, Mars, Mercury, Neptune, Saturn, Solar System, Sun, Uranus, Venus.

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Subjects: Astronomy Physics


Weblinks:
NASA Photographic Library Photographs from NASA available for viewing and download.
The Nine Planets A Multimedia Tour of the Solar System: one star, eight planets, and more.