Subject: Age of our Solar System verses the age of the universe

All the naturally occuring elements we have were created in what must have been a very large star. This star must have accreted from the far flung dust of creation (just H atoms?), organized,evolved and shifted through several stages before blowing up to disperse the material to make our sun (which must also be mostly heavier elements?). All this gathering, fusing, dispersing must have taken a very long time. Our sun is estimated to be 5 billion years and yet ,assuming we are the very first generation with planets, the universe is thought to be only 15 billions or so. This does not seem to be enough time. What is the estimate of time for a star to accrete from nebula?

Re: Age of our Solar System verses the age of the universe