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Fifth planet · Vinony

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EntityQ1105734· pop 7· linked from 9 articles

Fifth planet

any of various hypothetical planets thought to have existed

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Categories

Ancient astronomy Ceres (dwarf planet)Early scientific cosmologies Hypothetical astronomical objects Hypothetical bodies of the Solar System Hypothetical planets

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wikipedia.externallinksexternallink

International Standard Book Number

science fiction

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International Astronomical Union

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