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NNF1024 NNF1024
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A month ago

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



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



She was the first person to analyze spectra of stars.



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



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

Textbook 
ASTRO

ASTRO


Edition: 3rd
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nenialindanenialinda
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A month ago
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NNF1024 Author
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A month ago
Good timing, thanks!
dri
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Yesterday
Just got PERFECT on my quiz
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2 hours ago
This helped my grade so much Perfect
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