What is the minimum mass necessary in a protostar for it to begin hydrogen fusion reactions and become a main-sequence star?

Question

Quizplus · Accepted Answer

The minimum mass necessary for a protostar to begin hydrogen fusion reactions and become a main-sequence star is 0.08 solar masses. Below this threshold, the object does not have enough mass to create the core temperatures and pressures needed for hydrogen fusion and becomes a brown dwarf instead.

What Is the Minimum Mass Necessary in a Protostar for It