of nuclear fusion. Stars that start their lives with masses less than about eight solar masses stop their nuclear burning trip with helium burning at the core. Stars that start their lives with masses greater than about Model of Stars internal process eight solar masses continue their nuclear burning and go on to produce such products as neon,magnesium, silicon, and sulfur. Eventually, silicon and sulfur ignite in the star's core to form iron and nickel. (Hansen, 1994) Various info about star at mature stageIn conclusion, before I wrote this paper I would have to say that even though every night when I happen to glance upwards I see a whole bunch of stars, I never even had the slightest idea of where they came from until now. Stars come from these cosmic nurseries that scientists and astronomers refer to as nebulas in one of the oddest ways imaginable. I learned quite a bit about where starscome from and I hope to continue to learn even more about stars in the not so distant future. M-29 Butterfly Nebula ...
