QQuestionAstronomy
QuestionAstronomy
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Why is Pluto now called a dwarf planet?
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Answer
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Step 1I'll solve this problem by explaining the reclassification of Pluto as a dwarf planet:
Step 2: Understanding Planetary Classification
In 2006, the International Astronomical Union (IAU) established new criteria for defining a planet. To be considered a full planet, a celestial body must meet three key requirements:
Final Answer
Pluto was reclassified as a dwarf planet because it does not meet all three criteria for a full planet, specifically failing to clear its orbital neighborhood, despite orbiting the Sun and being nearly spherical.
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