brown dwarf
noun
: a celestial object that is much smaller than a normal star and has insufficient mass to sustain nuclear fusion but that is hot enough to radiate energy especially at infrared wavelengths
Examples of brown dwarf in a Sentence
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In contrast, stars, including brown dwarfs, form on their own within giant collapsing clouds of gas.
—
Byadam Mann, science.org, 6 Nov. 2024
The cool brown dwarf Gliese 229 B is a close binary
European Southern Observatory.
—Paul Smaglik, Discover Magazine, 16 Oct. 2024
Three teams have identified a dozen or so brown dwarfs between three and eight Jupiter masses—and no smaller.
—Byadam Mann, science.org, 6 Nov. 2024
As expected with these diminutive masses, brown dwarfs are rarely found in binaries.
—Robert Lea, Space.com, 24 Dec. 2024
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Byadam Mann, science.org, 6 Nov. 2024
The cool brown dwarf Gliese 229 B is a close binary
European Southern Observatory.
—Paul Smaglik, Discover Magazine, 16 Oct. 2024
Three teams have identified a dozen or so brown dwarfs between three and eight Jupiter masses—and no smaller.
—Byadam Mann, science.org, 6 Nov. 2024
As expected with these diminutive masses, brown dwarfs are rarely found in binaries.
—Robert Lea, Space.com, 24 Dec. 2024
See All Example Sentences for brown dwarf
Cite this Entry
“Brown dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brown%20dwarf. Accessed 27 Feb. 2025.
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