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.
Red giants. By the way, what if it was a white star.
A red giant, when a main sequence star begins fusing helium into carbon in the star's core. When our Sun becomes a red giant, in another 4 billion years or so, it will expand to consume Mercury and Venus at least, and possibly the Earth as well.
After the supernova of a red giant, remnants such as a neutron star or a black hole can form, depending on the mass of the original star. If the star was especially massive, it may also result in a supermassive black hole or a hypernova explosion.
Before a star becomes a red giant, it goes through the stage of being a main sequence star, where nuclear fusion in its core converts hydrogen into helium, releasing energy in the form of light and heat.
red giant
The mass of the star.
I am pretty sure it becomes a giant if I'm not mistaken.
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.
first its called the main sequence star like the sun then it becomes a red giant then it becomes a red super giant and if it is huge a hyper-giant like VY Canis Majoris (largest star known) then it explodes and it becomes a planetary nebula then it becomes a white dwarf
After a star burns up all it's hydrogen, it becomes a red giant.
A red main sequence star would be a red dwarf or a branch red giant. To be on the main sequence, you have to have hydrogen nuclear fusion.
The next step in its life is to become a "red giant" star.
A red giant star.
Red giant is a type of star.
As the star balloons into the red giant phase, its surface becomes further away from the core and cools. This changes the color appearance of the star from orange or blue to red.
The next step in its life is to become a "red giant" star.
After the main sequence, a star becomes a red giant.