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What is the difference between a pro star and a star ?

User Kilise
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2 Answers

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Answer: A new star is a pro star

Step-by-step explanation:

User Sharif Amlani
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The fundamental difference between a protostar and a star is that the latter has nuclear fusion as its energy source and the former does not. The birth of stars is a battle between gravity and radiation pressure. It takes about 1032 hydrogen atoms to make a star.
User Binford
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