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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
What is happening in a star that is on the main sequence on the Hertzsprung-Russell diagram?
A)   The star is generating energy by helium fusion, having stopped hydrogen “burning.”
B)   The star is slowly shrinking as it slides down the main sequence from top left to bottom right across the H-R diagram.
C)   Stars that have reached the main sequence have ceased nuclear “burning” and are simply cooling down by emitting radiation.
D)   The star is generating internal energy by hydrogen fusion.
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Discovering the Universe

Discovering the Universe


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hyponoticahyponotica
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staedtler Author
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7 years ago
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