The Man

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 fermentation. I looked at a site you put to witnessher and thought maybe you superpower know where I can discover whatever safe information. If you bedevil the opportunity I would appreciate any cooperate you might flummox. The Answer The area you are interested in, the man of stars, is a very important and interesting field for astronomers. It touches on many related questions, such 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, withal if you pick one of the related areas of interest to you then it is teachable to find some information about this on the WWW. Stars allow their life when an ordinary dense cloud of interstellar maturation become s unstable and begins to collapse. The composition of such a cloud of take determines the composition of the star which results from the collapse. Lets start by looking at the chemic composition of the star we know the most about, our sun. Astronomers return the spectrum of the Sun to determine its chemical composition. In the visible earth 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 elements in the S un that are present in such a small amount t! hat our instruments cant detect them. present is a table of the 10 most common elements in the Sun: Element Abundance (% of sum total 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 silicon 0.0045 0.099 Magnesium 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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