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Orion Nebula
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The contains one of the brightest star clusters in the night sky. With a magnitude of 4, this nebula is easily visible from the Northern Hemisphere during the winter months. It is surprising, therefore, that this region was not documented until 1610 by a French lawyer named Nicholas-Claude Fabri de Peiresc. On March 4, 1769, Charles .... Middle of paper .... Then, when the electron drops from the n=3 level to the n=2 level, an Hphoton is emitted. 2 This photon has a wavelength of 6563 Å, 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.
The extreme brightness of the O-type and B-type stars, coupled with the Earth’s atmosphere, has always made high-resolution imaging o ....
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Number of words: 979 Number of pages: 4 (approx. 250 words per double-spaced page)
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