Last Updated
：2025/11/28
interstellar planet
Noun
Japanese Meaning
惑星質量の天体であり、元々の恒星系から放出されたか、最初から特定の恒星に重力的に束縛されず、銀河内を直接周回している天体 / 孤立惑星、または恒星間惑星とも呼ばれ、他の星に依存せず独立して存在する惑星
（ plural ）
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(astronomy, planetology) a planetary-mass object which has either been ejected from its system or was never gravitationally bound to any star or other such object, and that therefore orbits the galaxy directly.
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interstellar planet
Astronomers detected an interstellar planet drifting silently through the Milky Way, never having orbited a star.
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Astronomers detected an interstellar planet drifting silently through the Milky Way, never having orbited a star.
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