what is the reason why pluto is not considered as a planet?
11500
The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.”
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According to Nasa, Pluto was never a planet. It is a dwarf planet due its size and location in space. Furthermore, this dwarf planet is called plutoid, i.e. farther out in the space than Neptune. Furthermore, Pluto's orbit is erratic.
1195650
The last time this happened started in 1979 and went until 1999. During that period, Neptune was actually the most distant planet from the Sun, and Pluto was actually closer. But then Pluto was demoted, from planet to dwarf planet, so Neptune is now the most distant planet; and it doesn't matter what Pluto does.
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There are currently five planets classified as dwarf planets: Ceres, Pluto, Makemake, Haumea and Eris. Except for Ceres, which lies in the main asteroid belt, these small planets are located in the Kuiper Belt.
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Pluto is no longer classified as a major planet. ... Pluto is just one of a large number of icy worlds orbiting at the outer edge of the planetary system. The orbit of Pluto is. elliptical and much more tilted with respect to the ecliptic plane than those of the major planets.
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Pluto is about two-thirds the diameter of Earth's moon and probably has a rocky core surrounded by a mantle of water ice. Interesting ices like methane and nitrogen frost coat its surface.
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The temperature on Pluto can be as cold as -375 to -400 degrees Fahrenheit (-226 to -240 degrees Celsius).
926142
After reclassification in 2005, Pluto is no longer classified as a planet because it: Pluto's gravity has not cleared its orbit of other matter and therefore it no longer fits the modern definition of a planet. Earth is round because: ... They orbit between Mars and Jupiter.
513052
This led the International Astronomical Union (IAU) to define the term "planet" formally in 2006, during their 26th General Assembly. That definition excluded Pluto and reclassified it as a dwarf planet. It is the ninth-largest and tenth-most-massive known object directly orbiting the Sun.
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Pluto, once considered the ninth and most distant planet from the sun, is now the largest known dwarf planet in the solar system.
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Proper noun The name of the dwarf planet Pluto is originally masculine inanimate, but can be used also in neuter gender.
532473
The moon is not part of the solar system because moon is only the natural satellite. Moon has no atmosphere and it has no particular own light . It's not a planet that's why people can't live in the moon. So, moon is not considered a part of the solar system.
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At its most distant, when the two bodies are on the opposite sides of the sun from one another, Pluto lies 4.67 billion miles (7.5 billion kilometers) from Earth. At their closest, the two are only 2.66 billion miles (4.28 billion km) apart.
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Pluto (minor planet designation: 134340 Pluto) is an icy dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It was the first and the largest Kuiper belt object to be discovered. ... That definition excluded Pluto and reclassified it as a dwarf planet.
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Pluto rotates much more slowly than Earth so a day on Pluto is much longer than a day on Earth. A day on Pluto is 6.4 Earth days or 153.3 hours long.
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The only difference between a planet and a dwarf planet is the area surrounding each celestial body. A dwarf planet has not cleared the area around its orbit, while a planet has. Since the new definition, three objects in our solar system have been classified as dwarf planets: Pluto, Ceres and Eris.
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Is Pluto a Dwarf Planet? Because it has not cleared the neighborhood around its orbit, Pluto is considered a dwarf planet. It orbits in a disc-like zone beyond the orbit of Neptune called the Kuiper belt, a distant region populated with frozen bodies left over from the solar system's formation.