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RED GIANT
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A large, old, luminous star; has a relatively low surface temperature and a diameter large relative to the sun
Synonyms:
red giant; red giant star
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("red giant" is a kind of...):
star ((astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior)
Context examples:
They found that the surface of this red giant has just a few convective cells, or granules, that are each about 120 million kilometres across — about a quarter of the star’s diameter.
(Giant Bubbles on Red Giant Star’s Surface, ESO)
According to this theory, the companion would have to be in an elliptical orbit that carries it close to the red giant's puffed-up atmosphere every 8.5 years.
(Hubble Detects Giant 'Cannonballs' Shooting from Star, NASA)
At the end of the red giant phase of a star, these forces become unbalanced.
(Hubble Views Final Stages of a Star’s Life, ESA/NASA)
Located 530 light-years from Earth in the constellation of Grus (The Crane), π1 Gruis is a cool red giant.
(Giant Bubbles on Red Giant Star’s Surface, ESO)
Astronomers using ESO’s Very Large Telescope have for the first time directly observed granulation patterns on the surface of a star outside the Solar System — the ageing red giant π1 Gruis.
(Giant Bubbles on Red Giant Star’s Surface, ESO)
