Which feature characterizes the remnant if UY Scuti collapses into a black hole?

Answer

An event horizon

When gravity crushes the core past the neutron star stage, it forms a singularity surrounded by an event horizon, a boundary from which nothing, including light, can escape.

Which feature characterizes the remnant if UY Scuti collapses into a black hole?

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What If Earth Orbited UY Scuti? - YouTube

astronomystarstellar evolutionUY Scutisupergiant