red dwarf

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red dwarf

n.
A dwarf star, ranging in mass from one-tenth to one-half the mass of the sun, whose relatively cool surface temperature makes it appear red-orange in color.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

red dwarf

n
(Celestial Objects) one of a class of small cool main-sequence stars
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

red′ dwarf′


n.
any of the faint reddish stars smaller than the sun and with low surface temperatures, about 2000–3000 K.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

red dwarf

A star that is cool, small, and very faint. Red dwarfs burn very slowly and live for about 100 billion years. Although they are difficult to see, they are likely the most abundant type of star. Proxima Centauri is a red dwarf.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.red dwarf - a small, old, relatively cool star; approximately 100 times the mass of Jupiter
flare star - a red dwarf star in which luminosity can change several magnitudes in a few minutes
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Even if the planet does not have an atmosphere, or the atmosphere does not have any biosignature, rocky planets are commonly in close orbit around red dwarf stars. Thus, a closer look at LTT 1445Ab could shed more light on rocky planets.
However, the new study has shown that it is possible for low mass stars to last as long as the 13 billion years since the Big Bang, Red Dwarf stars for instance, which have a fraction of the mass of the sun, are thought to live for trillions of years.
The simulations assumed stars that are like our own, but the results are optimistic for red dwarf stars, too, Kite said.
Many of the stars that have exoplanets orbiting around them are red dwarf stars, which are the faintest and the most common in the universe.
The constant bombardment of ultraviolet energy toasts KELT-9b like a marshmallow, bringing its daytime temperature to around 4600K (7800[degrees]F), hotter than most red dwarf stars and only about 1200K cooler than our Sun's visible surface.
|REAL DEAL: The Red Dwarf stars, above left, and the Lego set created by superfan Bob Turner, pictured right with Chris Barrie, who plays Rimmer
Such stars are known as red dwarf stars and have a cool surface temperature of about 3000C.
The number grows exponentially if the count also includes planets circling cooler red dwarf stars, the most common type of star in the galaxy.
Red Dwarf stars Craig Charles and Chris Barrie will be on hand to sign autographs and chat to fans.
Kepler casts its gaze on around 158,000 stars and, based on the analysis by Dressing and her team, the telescope has identified 95 planetary candidates orbiting red dwarf stars.
The scientists calculated that elliptical galaxies have more red dwarf stars than predicted.