Multiple choice general knowledge science & technology what should be the minimum weight of a star to become a black hole? equal to sun's mass less than sun's mass mass is not a factor around 1.5 times the sun's mass Reveal answer Fill a bubble to check yourself D Correct answer Explanation A star needs approximately 1.5 to 3 times the mass of the Sun to potentially form a black hole after its death. Stars with less mass typically become white dwarfs or neutron stars.