• Cat_Daddy [any, any]@hexbear.net
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          5日前

          I assumed it would be further inward than the photon sphere because heat radiation is (also an assumption) easier for gravity to hold back than light. I don’t know how “heavy” a star’s heat is, though, so ¯\ˍ(ツ)ˍ/¯

          • dwindling7373@feddit.it
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            4日前

            Heat radiation are particles with a mass and a certain speed, they are all by definition heavier and easier to trap than photons.

            In terms of escape velocity, nothing can try to escape faster than light.