$June 1, 2021 - What are Planets? Reading II

Last updated over 4 years ago
12 questions
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What is any broadly, relatively large body that revolves in an orbit around the Sun?

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What is the name of the organization that is charged by the scientific community with classifying astronomical objects?

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What year was Pluto last considered a planet?

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How many celestrial bodies did ancient sky gazers observe against the background of the apparently fixed stars?

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How many conditions must be met for a large celestial body to be considered a palanet?