giant star


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Related to giant star: red giant star, Supergiant Star

giant star:

see red giantred giant,
star that is relatively cool but very luminous because of its great size. All normal stars are expected to pass eventually through a red-giant phase as a consequence of stellar evolution.
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giant star

See giant.

giant star

[¦jī·ənt ′stär]
(astronomy)
One of a class of stars that is 20 or 30 or more times larger than the sun and over 100 times more luminous.
References in periodicals archive ?
Researchers believe this could indicate that that the neutron star is younger in comparison to its red giant star companion.
This is the first time that we have such a giant star that is unambiguously imaged with that level of details," said Dr.
The late-type giant star is a high infrared source, (6) and it is possible that this might affect the colour perception of the eye when making magnitude estimates, as of course the giant star is the primary source of light during eclipses.
Jim Fuller (Caltech) and colleagues used these changes to study a few dozen red giant stars that had been monitored for years by the Kepler spacecraft.
What we are seeing in splendid detail with these observations is the final act of a dying red giant star, as it sheds most of its gaseous bulk in a strong, outflowing wind.
It's hard to say if giant planets would be less likely to form in giant star disks," Melis says.
The researchers interpret this X-ray emission to be caused by the collision between supernova debris and disk-shaped material that the giant star expelled before the explosion.
We infer that K3-35 is being observed at the very moment of its transformation from a giant star to a planetary nebula," the researchers say.
The red giant star Kepler-56 spins on an axis bizarrely offset by 45[degrees] from its two transiting planets, report Daniel Huber (NASA Ames Research Center) and colleagues in the October 18th Science.
The red giant star observed by the astronomers, J0247-25, had a recent stellar collision and the team discovered the star was a new type of pulsating stars.
The enormous W50 cloud formed when a giant star, 18,000 light years away in the constellation of Aquila, exploded as a supernova around twenty thousand years ago, sending its outer gases flying outward in an expanding bubble.
At issue, explained lead study author and doctoral student Ben Shappee, is the identity of the white dwarf's companion - is it another white dwarf, or a giant star, or even a star like our sun?