A star is born.

[MKruer]

I have been looking around for some specific information on star formation during the final stages. When a star ignites it pushes away all the gasses that were in the process of forming the star. If this is correct then what else happens to distinguish between a Red Dwarf and a Blue Giant. The ignition should be fairly consistent in terms of mass.

I have an idea but I am looking for some additional verification. From my understanding about star formation, is that as a nebulous cloud collapses at some point forms a proto star. At the center when the pressure is great enough ignition occur. Hydrogen forms into helium. Well give that the star density at the core. It will take a few million year for the reactions to reach the surface and consequential push the remaining falling gas away, leaving a typical star.

If this is true then what distinguishes a red dwarf from a blue giant is the amount of gas falling into the star after the proto star stage but before the core reactions reach the surface.

Is this correct?

[selden]

That's consistent with what I know, but I think you'll get more authoritative answers from an astronomy related Web Forum like http://www.bautforum.com/questions-answers/