Stars

Essay specific features

 

Issue:

Science

 

Written by:

Francis S

 

Date added:

March 26, 2017

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 284

 

Was viewed:

4325 times

 

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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...
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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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