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Stars Over Time
Essay specific features
Written by:
Kathy Y
Date added:
October 9, 2014
Level:
University
Grade:
A
No of pages / words:
5 / 1135
Was viewed:
9988 times
Rating of current essay:
Essay content:
All stars also have many more variations in each stage of life. The life of a star begins in a nebula, a great collection of gas and dust. Once enough mass has accumulated into a single object, gravity forces the mass to collapse into the center. Due to pressure and friction, the core gets so hot that it begins nuclear fusion and a protostar is made...
displayed 300 characters
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The age and the mass of stars tell every thing about a stars physical properties and placement into each of the categories. The Hertzsprung - Russell diagram (HR Diagram) graphs stars luminosities over the stars spectral class. Luminosity describes how bright the star is (I, II, III, IV, V); spectral class describes its temperature (O, B, A, F, G, K, M)...
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