0
The correct life sequence of a star starts with a protostar, which forms from a dense cloud of gas and dust. The protostar then evolves into a main sequence star, where it fuses hydrogen atoms to form helium in its core. Depending on its mass, the star will either become a red giant or a supergiant before eventually shedding its outer layers to become a white dwarf, neutron star, or black hole.
Add your answer:
Earn +20 pts
Is Vega on the main sequence?
No, Vega is a main-sequence star, meaning it is currently fusing hydrogen into helium in its core. The star is relatively young compared to our Sun, so it still has a long life ahead of it on the main sequence.
What does it mean when a star goes off the main sequence?
When a star "goes off the main-sequence" it generally means the star has run out of hydrogen fuel and is beginning the post-main-sequence or its end of life phase. The main sequence of a star is the time where it is no longer just a proto-star but is burning hydrogen as a primary source of fuel.
Do Stars spend most of their life span as main-sequence stars?
Yes Star spend most of their life span as a main sequence star. A star end will depend on its size in life the end of a start can be a red giant to supernova, a white dwarf, pulsar, or black hole.
Is betelgeuse a main sequence star?
No, Betelgeuse is not a main sequence star. It is a red supergiant star, which is a more evolved stage in the life cycle of a star compared to main sequence stars like the Sun. Betelgeuse is near the end of its life and is expected to go supernova in the relatively near future (on astronomical timescales).
What is the name for the portion of a star's life cycle when it is using hydrogen for fuel?
The portion of a star's life cycle when it is using hydrogen for fuel is called the main sequence phase. This is when a star fuses hydrogen in its core to produce energy and maintain stability. Stars spend the majority of their lives in this phase.
What are the main sequence stars life?
Understand that the Main Sequence is not a place or a category that a star belongs to all its life. A star's destiny is controlled by its size and this determines how much time it spends on the Main Sequence.
Will a star spend most of its life as a protostar?
No, it will spend most of it's life as a main sequence star.
What is the step after main sequence in a stars life?
After the main sequence, a star becomes a red giant.
What is a stable stage in the life cycle of a star?
The "main sequence".
Is Vega on the main sequence?
No, Vega is a main-sequence star, meaning it is currently fusing hydrogen into helium in its core. The star is relatively young compared to our Sun, so it still has a long life ahead of it on the main sequence.
Is it true that an average star spends 90 percent of its life as a helium burning main sequence star?
Yes, it is true that an average star spends about 90 percent of its life on the main sequence burning hydrogen into helium through nuclear fusion. This is the longest and most stable phase in a star's life cycle before it transitions into the next phase.
Which property of a main-sequence star gradually decreases throughout the star's life?
Mass of hydrogen
True or false. our sun is a white dwarf star?
False. Our sun is a main sequence star, not a white dwarf. A main sequence star is in the middle stage of its life cycle, whereas a white dwarf is the final stage of a much smaller star's life cycle.
What does it mean when a star goes off the main sequence?
When a star "goes off the main-sequence" it generally means the star has run out of hydrogen fuel and is beginning the post-main-sequence or its end of life phase. The main sequence of a star is the time where it is no longer just a proto-star but is burning hydrogen as a primary source of fuel.
Which step in a star's life cycle takes the longest?
Main sequence
Where does a star spend most of its life on an hr diagram?
On the main sequence.
Do Stars spend most of their life span as main-sequence stars?
Yes Star spend most of their life span as a main sequence star. A star end will depend on its size in life the end of a start can be a red giant to supernova, a white dwarf, pulsar, or black hole.
