Stellar Evolution

Question 1

What is the life cycle of our sun in order?

Answer 1

1. Nebula
2. Protostar
3. Our sun
4. Red Giant
5. Variable star
6. White dwarf
7. Black dwarf

Question 2

How is a protostar formed?

Answer 2

Protostar is formed as gravity begins to pull gases together causing temperature and pressure to increase

-Eventually when the temperature is high enough fusion starts

Question 3

When does is a Red giant formed?

Answer 3

When a star runs out of hydrogen or fuel for nuclear fusion.

Question 4

How does a red giant keep its stability?

Answer 4

The balance between its gravity moving inwards, and remaining nuclear fusion pressure moving outwards.

Question 5

What is a variable star?

Answer 5

When the star pulsates for a while shedding its outer layers.

Question 6

What is electron degeneracy pressure?

Answer 6

electrons cannot be squeezed together to resist further implosion.

Question 7

Who made the Messier catalogue

Answer 7

Charles messier

Question 8

What is the messier catalogue?

Answer 8

a set of 110 astronomical objects catalogues by French astronomer Charles Messier.