Stellar Evolution

Stellar evolution is the life cycle of a star. Stars start out as clouds of gas and dust. The composition of the gas and dust will determine the stages that the star may go through.

482 Questions
Stellar Evolution

What two things balance to maintain the shape of a star?

Pressure and gravity

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Stellar Evolution

Stellar evolution is the life cycle of a star A cycle suggests that upon death of a star another star is born How is this possible?

Although at the end of a stars life - another "type" of star is born, they are different to the "normal" type of star and are "star" in name only. Most "remnants" of stars should be classed as degenerate stars.

Our Sun (a star) will first turn into a red giant star [See related question] and then a white dwarf star [See related question]

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Stellar Evolution

What is a star life cycle that is accurate?

See related question.

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Stellar Evolution

What stage of stellar evolution follows the fusion of heavy elements in iron?

s

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The Difference Between
Stellar Evolution

What are some ways various main sequence stars differ?

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Stellar Evolution

What is meant by the statement The bigger they are the harder they fall with respect to stellar evolution?

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The Sun
Stellar Evolution

What is the average life span of our sun?

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Stars
Stellar Evolution

What is the most complex and least complex star?

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Similarities Between
Stellar Evolution

How are red giants and blue giants similar?

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Stellar Evolution

What star stage is gravity low and energy the highest?

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Stellar Evolution

What are the characteristics of blue stars?

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Stellar Evolution

What are the characteristics of yellow stars?

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Stellar Evolution

What are the characteristics of a red star?

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Stars
Stellar Evolution
Dwarf Stars

Can a star be a brown dwarf?

Yes, a brown dwarf is a star that failed to ignite hydrogen fusion because it did not have enough mass for a strong enough gravitational collapse.

Brown dwarf stars glow dimly with residual heat for a very short time.

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Spectroscopy
Stellar Evolution

Why is the presence of large amounts of helium in the spectrum of a star generally considered to be a sign of age?

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Nuclear Fusion
Stellar Evolution

Where in a star does the fusion occur?

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Astronomy
Nebulae
Stellar Evolution

What is a small nebula ball shaped?

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Black Holes
Astrophysics
Stellar Evolution

What wavelengths can astronomers detect from earth?

Only those which aren't absorbed too much by the atmosphere. Those are visible light, and radio waves.

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Stellar Evolution

What star with strong gravity allowing the formation of more oxygen and magnesium?

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Stellar Evolution

What material in the center of a nebula that becomes a star?

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Stars
Elements and Compounds
Stellar Evolution

What are the most common elements in most stars?

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Nuclear Fusion
Stellar Evolution

What is reaction in giant stars for the fusion of hydrogen to form helium?

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Neutron Stars
Stellar Evolution

Why do some stars evolve into neutron star?

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Stellar Evolution

What is the following object in the stellar evolution?

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The Difference Between
Stellar Evolution

How white dwarf stars differ from main sequence stars?

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