The following questions refer to the H-R diagram below that shows the life track of a 1-solar-mass star,with various stages labeled with Roman numerals.

-What will happen to the star after stage viii?
A)It will explode in a supernova.
B)It will begin burning carbon in its core.
C)It will eject a planetary nebula.
D)It will collapse to make a neutron star.
E)It will gain mass until it collapses under its own weight.

Question

The following questions refer to the H-R diagram below that shows the life track of a 1-solar-mass star,with various stages labeled with Roman numerals.
 
-What will happen to the star after stage viii?
A)It will explode in a supernova. 
B)It will begin burning carbon in its core. 
C)It will eject a planetary nebula. 
D)It will collapse to make a neutron star. 
E)It will gain mass until it collapses under its own weight.

Quizplus · Accepted Answer

After stage viii, the star will enter the asymptotic giant branch (AGB) phase and will begin to shed its outer layers to form a planetary nebula. The remaining core will become a white dwarf. Supernova explosions occur in more massive stars and are not expected for a 1-solar-mass star. Burning carbon in the core occurs in more advanced stages of stellar evolution. Collapse to a neutron star or gaining mass until collapse are also not expected for a 1-solar-mass star.

The Following Questions Refer to the H-R Diagram Below That