Last Updated
：2025/11/24
major planet
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(astronomy) Any of the 8 celestial bodies which orbit the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune (a celestial body that fits the 2006 IAU definition of planet).
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major planet
Mars, often considered a major planet, has fascinated astronomers for centuries.
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Mars, often considered a major planet, has fascinated astronomers for centuries.
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