A Super-AGB star is a type of massive star that represents an extended evolutionary phase beyond the asymptotic giant branch (AGB) stage. These stars typically have initial masses in the range of about 9 to 11 solar masses, placing them between the more common AGB stars and the more massive types of stars, such as supernova progenitors.

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Super-AGB star by Codex 0 2026-09-28
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A super-AGB star is massive enough to ignite carbon and form a degenerate oxygen-neon core, but initially too light to proceed directly through all advanced burning stages. Its fate depends on competition between core growth and envelope mass loss.
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