giant star

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Related to giant star: red giant star, Supergiant Star

giant star

Any of several classes of highly luminous stars that are very massive, very large, or both.

giant star

(Astronomy) any of a class of stars, such as Capella and Arcturus, that have swelled and brightened considerably as they approach the end of their life, their energy supply having changed. Sometimes shortened to: giant Compare supergiant

gi′ant star′

a star having a diameter of from 10 to 100 times that of the sun, as Arcturus or Aldebaran.

gi·ant star

A very large, very bright star having high mass and low density.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.giant star - a very bright star of large diameter and low density (relative to the Sun)giant star - a very bright star of large diameter and low density (relative to the Sun)
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
References in periodicals archive ?
The phenomenon was observed by the ESA's (European Space Agency) Integral space observatory, which saw a red giant star revive its dead companion star with a flash of X-rays.
Summary: TEHRAN (FNA)- An international team of astronomers has produced the first detailed images of the surface of a giant star outside our solar system, revealing a nearly circular, dust-free atmosphere with complex areas of moving material, known as convection cells or granules, according to a recent study.
Our Sun will swell to become a similar red giant star in about five billion years.
RESIDENTS of Qatar and the Arab world will be able to witness a rare celestial event, when the orange giant star 'Aldebaran' will move very close to the moon twice in December, Qatar Calendar House (QCH) announced on Thursday.
SUPERCOOL Alexey Kuznin, 19, poses on a giant star and even pretends to take a nap at the top of a 512ft skyscraper he climbed using only a rope.
ISLAMABAD -- Chilean astronomer Maritza Soto has discovered a planet three times as large as Jupiter orbiting a red giant star larger than the Sun and located some 290 million light years from Earth.
In about five billion years our Sun will become a red giant star, swelling to immense proportions and engulfing Mercury and Venus.
Budding astronomers can gaze up at the night sky and try to spot the likes of the Orion Nebula where stars are created, the Antromeda Galaxy and Belelgeux - a red giant star 700 times the size of the sun.
If these two stars are close enough, material from the red giant star can be pulled off its surface and onto the white dwarf.
Symbiotic stars are widely separated, long orbital period interacting binary stars consisting of a late-type giant star and a hot compact companion, usually a white dwarf.
They discovered that a rare type of giant star, often overlooked by astronomers, could make an excellent signpost for distances up to 300,000,000 light-years--and beyond.
It consists of a white dwarf star in close orbit with a much larger red giant star.