Stars 4. Flashcards
1
Q
What does the hydrogen in the core eventually start to do?
A
Run out
2
Q
What is the force due to gravity larger than?
A
The pressure of thermal expansion
3
Q
When is the star compressed until?
A
It is dense and hot enough that the energy created makes the outer layer of the star expand
4
Q
What does the star become?
A
A red giant
A red supergiant
5
Q
Why does it become red?
A
Because the surface cools
