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A star become a red giant when the core contracts, the temperature increases and the outer layers of the star begin to expand. By the end of this phase, the star can be 10 to 100 times it diameter. When the temperature in the core reaches 100 000 000°C, the helium start fusing into carbon. Because the star has expanded to such an enormous size, that the outer layer are much cooler than when the star was a main sequence star. It therefore appears red, earning the name of red giant.
What else can I help you with?
The sun is a .medium -sized star but one day it will become a red giant?
yes. in about five billion years the sun will become a red giant.
When a star collapses does it get bigger?
that depends on how large the red or super red giant was. if it was a super red giant that is 1000X larger than a red giant. it will become a black hole
How do you use red giant in a sentence?
Our sun is expected to become a red giant within a few billion years. The red giant star Antares has a diameter 800 times that of the Sun.
Which types of star has low temperature and high luminosity?
A red giant star.
What kind of star the sun will become in the end of the cycle?
red giant
How many times can a star become a red giant?
Just once.
What do medium stars in the red giant phase become?
A star that is in it's teenage years(medium star) isn't a red giant until it's last years.
Is red giant a star or a type of star?
Red giant is a type of star.
When a main-sequence star has exhausted the fuel in its core it becomes a....?
I am pretty sure it becomes a giant if I'm not mistaken.
What are the red giants?
A red giant is when a star becomes very large. A super red giant is when a star becomes very extremely large. People think that in a few billion years, our sun will become a red giant and swallow up earth.
Will a red giant star end as a supernova?
Not exactly. Red giants become white dwarf stars. It is the red supergiants that can become supernovas.
What type of star will the Sun become after going through the Red Giant stage?
a green nebulous star
