What is the core temperature threshold required for a gas cloud fragment to become a true star capable of sustained nuclear fusion?

Answer

10 million Kelvin

For a cloud fragment to achieve the conditions necessary for sustained nuclear fusion, it must reach a core temperature of about 10 million Kelvin.

What is the core temperature threshold required for a gas cloud fragment to become a true star capable of sustained nuclear fusion?
astronomyhydrogencompositionstellarstars