UNIVERSE
COMETS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A dwarf planet has not “cleared the neighborhood” around its orbit.
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A dwarf planet is gravitationally dominant.
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A dwarf planet does not share its orbital space with other bodies of a similar size.
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There is no difference; A dwarf planet is exactly the same as a planet.
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Detailed explanation-1: -What differentiates a dwarf planet from a planet? For the most part, they are identical, but there’s one key difference: A dwarf planet hasn’t “cleared the neighborhood” around its orbit, which means it has not become gravitationally dominant and it shares its orbital space with other bodies of a similar size.
Detailed explanation-2: -. During its formation, the dwarf planet could not pull in all the objects near its orbit and hence is not considered a planet. Pluto, Ceres, and Eris are some dwarf planets.
Detailed explanation-3: -A planet must have “cleared the neighborhood” of its orbit. This means that as a planet travels, its gravity sweeps and clears the space around it of other objects. Some of the objects may crash into the planet, others may become moons.
Detailed explanation-4: -Pluto’s orbit around the Sun is unusual compared to the planets: it’s both elliptical and tilted. Pluto’s 248-year-long, oval-shaped orbit can take it as far as 49.3 astronomical units (AU) from the Sun, and as close as 30 AU.