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The Question (Submitted November 12, 1996) I was looking on the Internet for in ashesation on the opus of stars and was not strikeing some(prenominal) in melodic lineation. I looked at a site you put to conveyher and thought maybe you efficiency know where I can chance whatever level-headed information. If you bedevil the opportunity I would appreciate any befriend you might agree. The Answer The area you are interested in, the theme of stars, is a very important and interesting field for astronomers. It touches on many related questions, such(prenominal) as how do stars form? How do stars shine? Why are the amounts of different elements in the Universe the percentage that they are? It is not easy to find WWW references simply on chemic composition of stars, til now if you pick one of the related areas of interest to you then it is compliant to find some information about this on the WWW. Stars converge their life when an ordinary dense cloud of interstel lar outcome becomes unstable and begins to collapse. The composition of such a cloud of consult determines the composition of the star which results from the collapse. Lets start by looking at the chemical composition of the star we know the most about, our sun. Astronomers outcome the spectrum of the Sun to determine its chemical composition. In the visible region alone, from 4000 to 7000 angstroms (10-10 meters), there are thousands of absorption lines in the solar spectrum. These lines have been cataloged, and tell us that there are 67 chemical elements identified in the Sun. There are probably tied(p) more(prenominal) elements in the Sun that are present in such a small amount that our instruments cant detect them. present is a table of the 10 most common elements in the Sun: Element Abundance (% of positive Abundance be of atoms) (% of total mass) Hydrogen 91.2 71.0 Helium 8.7 27.1 Oxygen 0.078 0.97 Carbon 0.043 0.40 northward 0 .0088 0.096 ti 0.0045 0.099 Magnesi! um 0.0038 0.076 Neon 0.0035 0.058 Iron 0.030 0.014 Sulfur 0.015...If you compulsion to get a full essay, order it on our website: OrderCustomPaper.com

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