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Mar 9, 2022 at 0:28 comment added David Hammen It's the gravitational potential energy rather than the gravitational acceleration that is key. In particular, is the escape velocity at some point from the center so great that even light cannot escape? If it is, the object is a black hole. If it's not, the object is not a black hole. ProfRob's answer addresses this issue.
S Mar 7, 2022 at 22:52 review First answers
Mar 8, 2022 at 1:47
S Mar 7, 2022 at 22:52 history answered ProbodyneHecs CC BY-SA 4.0