Based on current understanding, the minimum mass of a black hole that forms during a massive star supernova is roughly _ .

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According to current understanding and observations, the minimum mass of a black hole that forms during a massive star supernova is around 3 solar masses. This is because a black hole is formed when the core of a massive star collapses under the force of gravity, and this collapse happens when the core's mass exceeds the Chandrasekhar limit of around 1.4 solar masses. However, there are several factors that can affect the exact minimum mass of a black hole formed in a supernova, such as the star's metallicity and rotation rate.

Based on Current Understanding, the Minimum Mass of a Black