Stars in this stage display S-process elements in their spectra and diverge into a "horizontal branch" and a "clump." The beginning of this phase marks a star's first dredge-up, at which point it will begin to ascend the asymptotic branch of the HR diagram named for these stars. Especially low-mass stars (*) cannot enter this phase because they are fully convective; stars in this stage either fuse hydrogen into helium in their shells, over a large inert helium core, or, later, form carbon via the triple-alpha process. Larger, "super" variants of these stars include Betelgeuse, and examples of these stars include Aldebaran. Earth's sun will one day become, for 10 points, what kind of large st
Stars in this stage display S-process elements in their spectra and diverge into a "horizontal branch" and a "clump." The beginning of this phase marks a star's first dredge-up, at which point it will begin to ascend the asymptotic branch of the HR diagram named for these stars. Especially low-mass stars (*) cannot enter this phase because they are fully convective; stars in this stage either fuse hydrogen into helium in their shells, over a large inert helium core, or, later, form carbon via the triple-alpha process. Larger, "super" variants of these stars include Betelgeuse, and examples of these stars include Aldebaran. Earth's sun will one day become, for 10 points, what kind of large star characterized by a certain high-wavelength color?
Stars in this stage display S-process elements in their spectra and diverge into a "horizontal branch" and a "clump.
{red giant} [prompt on giant]