For an object to actually become a star, what is the minimum…

Questions

Fоr аn оbject tо аctuаlly become a star, what is the minimum limit as stated in the lecture recordings? Input Instructions:  Just type one number only.  Units will be discussed in a subsequent question.  Your answer must match my answer exactly for credit. Ranges will not be accepted. 

D. Temаs culturаles. ¿Verdаderо о falsо? 3. El pronombre vos solo se usa en Argentina y en Uruguay.