It can range from 0.25 that of the Sun in a red dwarf to over 2,000 times that of the Sun in a hypergiant.
China has a red flag with a yellow star
A red giant.
a big red and white star
100 times diameter of the sun.
Dubhe is not a red giant but rather a subgiant star. It is the brightest star in the Big Dipper asterism and is classified as an evolved F-type subgiant star.
A star might begin to die after its main sequence. It'll balloon to a very big size. They're called red giants because the star is big and red. A red giant can die, though. Red giants die when their surface sheds into a cloud called a planetary nebula. Its core becomes a white dwarf. Our sun will go through this path.
The big star on the Chinese flag represents the rest of china and the small stars represent all of the islands in China
as big as a star
Red giant is a type of star.
It is a red dwarf star called Proxima Centauri 4.24 light years away. It's diameter is about one-seventh that of the Sun.
A red star is cool whereas a blue star is hot.
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