Asymptotic giant branch
= Asymptotic giant branch
{wiki=Asymptotic_giant_branch}
The Asymptotic Giant Branch (AGB) is a phase in the evolution of stars, particularly those with initial masses between approximately 0.6 and 8 times that of the Sun. This stage occurs after a star has completed the hydrogen and helium burning phases in its core and is characterized by significant changes in the star's structure and composition.