What minimum mass is required for an object to initiate sustained ordinary hydrogen fusion, becoming a true star?

Answer

About 0.08 times the mass of the Sun (or 80 times the mass of Jupiter)

The critical threshold for a gas body to become a true star capable of sustained hydrogen fusion is approximately 0.08 solar masses or 80 times the mass of Jupiter.

What minimum mass is required for an object to initiate sustained ordinary hydrogen fusion, becoming a true star?
astronomydwarfstarsstellar classification