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RED DWARF
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I. (noun)
Sense 1
Meaning:
A small, old, relatively cool star; approximately 100 times the mass of Jupiter
Synonyms:
red dwarf; red dwarf star
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("red dwarf" is a kind of...):
star ((astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior)
Hyponyms (each of the following is a kind of "red dwarf"):
flare star (a red dwarf star in which luminosity can change several magnitudes in a few minutes)
Context examples:
But because a red dwarf is dimmer overall than our Sun, a planet in the habitable zone would have to orbit much closer to its star than Mercury is to the Sun.
(Mars Mission Sheds Light on Habitability of Distant Planets, NASA)
It is a faint red dwarf lying just four light-years away in the southern constellation of Centaurus (The Centaur).
(ALMA Discovers Cold Dust Around Nearest Star, ESO)
The most plausible explanation, according to Benneke, is that GJ 3470 b was born precariously close to its red dwarf star, which is about half the mass of our Sun.
(Atmosphere of Midsize Planet Revealed by Hubble, Spitzer, NASA)
Given the high level of activity of its red dwarf star, K2-18b may be more hostile to life as we know it than Earth, as it is likely to be exposed to more high-energy radiation.
(Hubble Finds Water Vapor on Habitable-Zone Exoplanet for 1st Time, NASA)
An astronomer proposed 23 years ago that a red dwarf star 1.5 light-years away could periodically travel through the icy outer limits of our Solar System, stirring up material with its gravity, knocking a few more space boulders our way.
(Our Sun Could Have Been Born With an Evil Twin Called "Nemesis", The Titi Tudorancea Bulletin)
The planets orbit a red dwarf star at least 500 million years old, in the constellation of Aquarius.
(Hubble Telescope Makes First Atmospheric Study of Earth-Sized Exoplanets, NASA)
It's the oldest red dwarf system with a disk we've seen in one of these associations.
(A Potential New Hunting Ground for Exoplanets, NASA)
CARMENES is the first high-precision spectrometer in operation that is designed specifically to find planets using this ‘red dwarf advantage‘.
(Researchers find two new planets with masses similar to Earth’s near a small neighbouring star, University of Granada)
Astronomers discovered an exoplanet orbiting a red dwarf star 40 light-years from Earth that may be the new holder of the title 'best place to look for signs of life beyond the solar system'.
(Super-Earth in Habitable Zone, The Titi Tudorancea Bulletin)
Many red dwarf stars, including Proxima Centauri, are subject to flares that occasionally bathe their orbiting planets in deadly ultraviolet and X-ray radiation.
(Closest Temperate World Orbiting Quiet Star Discovered, ESO)
