When the sun finally burns itself out, what kind of star will it become?

Answer 1

a champagne supernova

Answer 2

Since a star is a large, self-luminous ball of gas bound by gravity into a single object and powered by nuclear fusion at the core it will not become a rock. Our sun is currently in the first 90% of its life residing on the main sequence of the Hertzsprung Russell Diagram. It is a G2V star. During the last 10% of its life it will become a red giant and then when it finally finishes fusing helium into carbon it will become a white dwarf.

Answer 3

The Sun does not have enough mass to explode as a supernova. Instead, in 4-5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up. Helium fusion will begin when the core temperature reaches up to 100 MK, and will product carbon and oxygen. While it is likely that the expansion of the outer layers of the Sun will reach the current position of Earth's orbit, recent research suggests that mass lost from the Sun earlier in its red giant phase will cause the Earth's orbit to move further out, preventing it from being engulfed. However, Earth's water and most of the atmosphere will be boiled away.

Following the red giant phase, intense thermal pulsations will cause the Sun to throw off its outer layers, forming a planetary nebula. The only object that remains after the outer layers are ejected is the extremely hot stellar core, which will slowly cool and fade as a white dwarf over many billions of years. This stellar evolution scenario is typical of low- to medium-mass stars

Answer 4

In approximately 4 billion years (theoretically) the sun will slowly turn into a red giant. Eventually it will shed its outer layers and become a white dwarf star.

Answer 5

Red Giant then a white dwarf

Answer 6

it will settle down and become a white dwarf star

Answer 7

It will not longer be a star, just a big cold rock.

Answer 8

a cold rock but no one will notice