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Essay specific features
Written by:
James B
Date added:
December 18, 2013
Level:
University
Grade:
A
No of pages / words:
2 / 284
Was viewed:
8664 times
Rating of current essay:
Essay content:
A plot of the temperature of many stars against their luminosities, known as a Hertzsprung-Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.
A star begins as a collapsing cloud of material composed primarily of hydrogen, along with helium and trace amounts of heavier elements...
displayed 300 characters
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Once the stellar core is sufficiently dense, some of the hydrogen is steadily converted into helium through the process of nuclear fusion.[1] The remainder of the star's interior carries energy away from the core through a combination of radiative and convective processes. The star's internal pressure prevents it from collapsing further under its own gravity...
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