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doit_the_clown doit_the_clown
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8 years ago
How does the temperature inside the umbra of a sunspot compare to the solar photosphere outside the sunspot?
A)   The umbra is about 800 K hotter.
B)   The umbra is about 4000 K cooler
C)   The umbra is about 1500 K cooler.
D)   They are about the same temperature, the umbra being an absorbing layer over the sunspot.
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Discovering the Universe

Discovering the Universe


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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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doit_the_clown Author
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8 years ago
this is exactly what I needed
cartoon
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
Kstan109
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2 hours ago
Smart ... Thanks!
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