Last Updated
：2025/11/22
sub-brown dwarf
（ plural ）
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A planetary mass object, less massive than a brown dwarf star, and not in orbit around a star.
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sub-brown dwarf
The newly discovered sub-brown dwarf drifts alone through interstellar space, challenging our definitions of planets and stars.
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The newly discovered sub-brown dwarf drifts alone through interstellar space, challenging our definitions of planets and stars.
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