what is a protstar?

Asked by prakamya | 17th Nov, 2009, 07:14: PM

Expert Answer:

A protostar is a stage in the evolution of a young star after it has fragmented from a interstellar gas cloud but before it has collapsed sufficiently for nuclear fusion reactions to begin. It may last from 100,000 to 10 million years, depending on the mass of the star.

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Answered by  | 17th Nov, 2009, 09:01: PM

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