UNIVERSE
SURVEY OF THE PLANETS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It doesn’t orbit the Sun.
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It doesn’t have the spherical shape.
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It has not cleared its neighborhood.
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Ain’t nobody likes it!
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Detailed explanation-1: -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.”
Detailed explanation-2: -According to the International Astronomical Union, which sets definitions for planetary science, a dwarf planet is a celestial body that-orbits the sun, has enough mass to assume a nearly round shape, has not cleared the neighborhood around its orbit and is not a moon.
Detailed explanation-3: -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.
Detailed explanation-4: -Pluto is not that small. The IAU definition unfortunately mixes up being with doing. The ability to clear an orbit depends on the star, not just the planet. We can’t create good dynamical definitions from a sample of one. Pluto’s planethood indicates the reality of nature. More items •13-Apr-2015