A Type II supernova or SNII (plural: supernovae) results from the violent explosion of a massive star following the rapid collapse of its core. A star's mass must be at least 8 times, but no more than 40 to 50 times, the mass of the Sun (M☉) to undergo this type of explosion.
A Type II supernova or SNII (plural: supernovae) results from the violent explosion of a massive star following the rapid collapse of its core. A star's mass must be at least 8 times, but no more than 40 to 50 times, the mass of the Sun (M☉) to undergo this type of explosion.
Source: Wikipedia "Type II supernova" · CC BY-SA 4.0
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