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Essay

Orion Nebula

Essay specific features

 

Issue:

Miscellaneous

 

Written by:

Zachary W

 

Date added:

August 10, 2015

 

Level:

University

 

Grade:

B

 

No of pages / words:

4 / 947

 

Was viewed:

7347 times

 

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Essay content:

These high-temperature stars emit ultraviolet (UV) light that ionizes the surrounding hydrogen atoms into protons (H+) and electrons (e-). When the protons and electrons recombine, the electrons enter a higher energy level (n=3). Then, when the electron drops from the n=3 level to the n=2 level, an H??photon is emitted...
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When the protons and electrons recombine, the electrons enter a higher energy level (n=3). Then, when the electron drops from the n=3 level to the n=2 level, an H??photon is emitted. 2 This photon has a wavelength of 6563 A, and therefore corresponds to the red portion of the visible spectrum. It is these H? photons which give the nebula the distinctive red color which we see...
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