Author Question: Every red dwarf star that ever joined the main sequence is still there today. Indicate whether ... (Read 45 times)

khang · **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?

apple · **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.