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NNF1024 NNF1024
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A year ago

Why is Cecilia Payne's Ph.D. thesis sometimes called "the most important in astronomy"?



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She was the first person to show that the Sun is mostly hydrogen.



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She was the first person to analyze spectra of stars.



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Her analysis of stellar spectra showed that stars generate their own light.



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Her analysis of the Sun's spectrum resulted in the discovery of helium.

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ASTRO

ASTRO


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nenialindanenialinda
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