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Author Question: Every red dwarf star that ever joined the main sequence is still there today. Indicate whether ... (Read 47 times)

khang

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on: Jul 27, 2018
Every red dwarf star that ever joined the main sequence is still there today.
 
  Indicate whether the statement is true or false

Question 2

If the corona is so hot, why must we wait for a total solar eclipse to glimpse it?
 
  What will be an ideal response?


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apple

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Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

It is so hot that almost all the energy it gives off, by Wien's Law, is not going to be in the visible, but the X-ray portion of the spectrum. Also, it is very low density, so there are far more atoms at 5,800 K giving off a lot of visible light than the few out in the corona.


khang

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Reply 2 on: Jul 27, 2018
Gracias!

xiazhe

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Reply 3 on: Yesterday
:D TYSM

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