How does a massive, hot A-type star influence the location of its Habitable Zone compared to the Sun?
It pushes the Habitable Zone much farther out from the star
The location of the Habitable Zone is directly linked to the luminosity, or energy output, of the central star. Massive, hot A-type stars emit a tremendous amount of energy compared to a G-type star like our Sun. Consequently, the orbital distance required for a planet to receive only the precise amount of energy needed to keep water liquid must be significantly greater. This large stellar output pushes the HZ much farther away from the star. However, this extended distance comes with its own limitation: A-type stars exhaust their fuel rapidly, meaning the window of time available for stable habitability might be too short, potentially only a few hundred million years, to allow for the development of complex life.

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What Is the Habitable Zone? - YouTube