Black Star - in Astronomy

In Astronomy

• Dark star (Newtonian mechanics), a theoretical star that has a surface escape velocity that equals or exceeds the speed of light
• Dark star (dark matter), a theoretical star heated by dark matter annihilation in the early universe
• Dark energy star, a hypothetical alternative to black holes
• Black star (semiclassical gravity), a theoretical star built using semiclassical gravity as an alternative to a black hole
• Black hole, any region of space time where escape to the outside universe is impossible
• Black dwarf, a type of degenerate dwarf star, specifically, a cold white dwarf