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Pluto | ||||
subject | fact |
Pluto | has albedo < 0.25 | |
has synodic period 366.7 days | ||
has rotation period 6d9h17m49s | ||
has orbital velocity Vorb 4.7 km s-1 | ||
has eccentricity 0.249 | ||
has perhelion date 1989 | ||
has inclination to the ecliptic 17°.17 | ||
has distance from Sun 39.44 AU | ||
is a part of our solar system | ||
has radius < 2900 km | ||
has discovery date 1930 | ||
has discoverer Clyde Tombaugh | ||
has orbital period 248.43 years | ||
has temperature 50-60 K | ||
has mass 6 × 1026 g, 0.1 to 0.2 MEarth | ||
has definition The most distant known planet from the Sun. Its orbit has the highest eccentricity and highest inclination to the ecliptic of any planet and some astronomers suggest that it may be an escaped satellite of Neptune. In the mid-1970s Pluto crosses Neptune's orbit on its way in, and for the rest of this century Pluto will be closer to the Sun than Neptune (Pluto and Neptune, however, are never less than 2.6 AU apart). Its mass and radius have not been determined with any great certainty. | ||
is an instance of terrestrial planet | ||
is an instance of superior planet | ||
terrestrial planet | has composition mostly made of heavier non-volatile elements | |
has material silicates, oxides, water | ||
planet | is a part of solar system | |
has orbit | ||
celestial body | has spectra | |
physical object | has location or center of gravity | |
has angular momentum | ||
has velocity | ||
has momentum | ||
has volume | ||
has extent |
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