How to Use red dwarf in a Sentence
red dwarf
noun-
And since the red dwarf is still hot, there will eventually be a spark that triggers a runaway nuclear fusion reaction.
—Jacek Krywko, Ars Technica, 21 May 2024
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The cool red dwarf star, Trappist-1, is 40 light years from Earth.
—New York Times, 7 Dec. 2017
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The star, Gliese 887, is a small, dim red dwarf star with about half the mass of our sun.
—Ashley Strickland, CNN, 25 June 2020
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At the heart of this system is a small, dim star called a red dwarf.
—Kaitlin Rasmussen, Scientific American, 14 Sep. 2023
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Not when the sun becomes a red dwarf in billions of years.
—David Grossman, Popular Mechanics, 13 Jan. 2022
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Barnard’s star is also a very small and dim type of star known as a red dwarf.
—Loren Grush, The Verge, 14 Nov. 2018
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It’s known as VHS 1256 b and orbits two small red dwarf stars.
—Joshua Hawkins, BGR, 12 Sep. 2022
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The star is a red dwarf star that's roughly half as massive as our sun.
—Doyle Rice, USA TODAY, 25 June 2020
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The star, known as GJ887, is a red dwarf that's roughly half as massive as our sun.
—Doyle Rice, USA TODAY, 25 June 2020
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At the shorter distance, a year in the life of a red dwarf planet is only 10 to 30 days.
—Dennis Overbye, New York Times, 26 Mar. 2018
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But the red dwarf star is also much cooler than our sun.
—Ashley Strickland, CNN, 11 Sep. 2019
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The most common star in our galaxy is a red dwarf, smaller and dimmer than the Sun.
—John Timmer, Ars Technica, 20 Aug. 2019
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These dips in light are caused by planets passing in front of the small, cool, red dwarf star at the center of the system.
—Joey Rodriguez - Michigan State University, Discover Magazine, 9 Mar. 2023
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That star will likely be a small red dwarf, barely a fraction of our sun’s mass.
—Popular Mechanics, 7 Mar. 2023
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Those are precisely the wavelengths at which these small red dwarf stars give off most of their light.
—WIRED, 2 Oct. 2023
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Its sun is not a hot yellow star like ours, but a smaller, cooler red dwarf.
—Jeffrey Kluger, Time, 11 Sep. 2019
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But Kepler-1649c orbits a red dwarf star, much smaller and cooler than our sun.
—Ashley Strickland, CNN, 15 Apr. 2020
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Our yellow sun, for instance, is not so mediocre in a galaxy where red dwarf stars are the norm.
—Charlie Wood, Popular Science, 18 June 2020
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The beam was found from the direction of the star Proxima Centauri, a red dwarf star 4.2 light years from Earth.
—Mica Soellner, Washington Examiner, 18 Dec. 2020
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In the 1960s, an astronomer named Peter van de Kamp claimed to have found a Jupiter-sized world around Barnard’s star after studying how the red dwarf moved.
—Loren Grush, The Verge, 14 Nov. 2018
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Three rocky planets orbited the red dwarf YZ Ceti, a cosmic stone’s throw away.
—Quanta Magazine, 7 Aug. 2023
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This consists of seven rocky Earth-sized planets in orbit around a cool red dwarf star.
—Chris Holt, Discover Magazine, 20 Apr. 2022
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The tiny, tiny red dwarf is just barely big enough to be considered a star, and is, radius-wise, a hair bigger than Jupiter.
—John Wenz, Discover Magazine, 22 Feb. 2017
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Both planets circle a red dwarf star, and one, known as LP 890-9c, might even be habitable.
—CBS News, 8 May 2024
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Because red dwarfs are so much cooler than our Sun, the planet can be this close without getting charred to a crisp.
—William Herkewitz, Popular Mechanics, 24 Aug. 2016
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All this doesn't rule out an atmosphere for every planet around a red dwarf.
—John Timmer, Ars Technica, 20 Aug. 2019
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The problem is, the planet closely hugs its parent star, a red dwarf, and lies well outside the habitable zone.
—Matt Hrodey, Discover Magazine, 15 June 2023
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But eventually, all stars, including the red dwarfs, will come to an end.
—Popular Mechanics, 7 Mar. 2023
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The planet completes a single orbit around its red dwarf host star every 2 Earth days.
—Ashley Strickland, CNN, 11 Jan. 2023
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The planet orbits a red dwarf star that is less than half the temperature of the sun, according to the scientists.
—Denise Chow, NBC News, 11 Jan. 2023
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'red dwarf.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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