Hi,Alpha centauri A and B are the closest stars to the earth after proxima centauri as some people might know.so i am wondering how long they would live for.it would be good if you also give details about the red giant phase,thanks.
Red Giant Phase: In 5.4 billion years from now, the sun will enter what is known as the red giant phase of its evolution. This will begin once all hydrogen is exhausted in the core and the inert helium ash that has built up there becomes unstable and collapses under its own weight.10 May 2016 Will Earth survive when the sun becomes a red giant? - Phys.org