What is the primary factor determining whether a star evolves into a Giant or a Supergiant?

Answer

The star's initial mass

The star's initial mass dictates the maximum core temperature achievable, which in turn determines the highest element that can be fused, thereby setting the evolutionary path to Giant or Supergiant.

What is the primary factor determining whether a star evolves into a Giant or a Supergiant?

#Videos

How Do Stars Become Red Giants Or Supergiants? - Physics Frontier

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