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A star's internal composition does not change as the star ages, as a result of rising temperatures. The life span of a star is from one to ten-billion years. Larger, more massive stars have a shorter lifespan than smaller ones, due to the pressure on the core causing the larger stars to burn hydrogen more quickly.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoIt changes. (Hydrogen to helium to carbon to oxygen to neon to magnesium...) Our sun will never become hot enough to turn hydrogen and helium into carbon, however. Larger stars will can.
Wiki User
∙ 9y agoIt will gradually convert hydrogen-1 to helium-4, so it will have less hydrogen and more helium. At a later stage, the star will convert helium-4 to heavier elements.
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Why does a star change over time?
A star changes over time as it ages because its internal composition changes as nuclear fusion reaction in the star's core convert one element into another
The spectral type of a star measure?
The spectral type of a star is what measures its chemical composition. The visible light that bounces off of it can be used to determine the composition.
Can a scientist identify a star's composition by looking at its continuous spectrum?
the star's color
What can be said about the star composition if the spectrum of a star shows the same absorption lines as the sun?
If the spectrum of a star shows the same absorption lines as the sun than you know that the star has the same composition as the sun. This means that the star is made of the same elements as the sun.
How do scientist determine the composition of a star?
the colors and lines in the spectrum of a star indicates the elements that make up a star
True or false as a star ages its internal composition changes as a result of rising temperature?
true
Why does a star change over time?
A star changes over time as it ages because its internal composition changes as nuclear fusion reaction in the star's core convert one element into another
What happens to a high mass star as it ages?
it becomes a volcanic rock that is still very hot but bot as hot as the star was originally
When the star die what did it become?
During last ages of life of a star, to find what happens in coming ages of life of star. It determines on its mass explained by chandrashekher that if the mass of given star is 2.42 times the mass of our sun then it explodes in the form of supernova. If the mass of given star is less than the 2.42 times the mass of our sun then it shrinks to become white dwarf.
What happens when you change the composition of a mixture and a compound?
What happens is the composition of the compound becomes different and the composition of the mixture stays the same because you can have many types of mixtures.
When ice melts what happens to its chemical composition?
the chemical composition does not change.
The composition of a star can be identified by?
the lines in its spectrum
Can a scientist identify a star's composition by looking at its continuous spectrum?
the star's color
The spectral type of a star measure?
The spectral type of a star is what measures its chemical composition. The visible light that bounces off of it can be used to determine the composition.
What is the cause of Stellar Evolution?
Nuclear physics. As a star ages, the fusion of lighter elements into heavier elements changes the composition of the star's core, which in turn affects the dynamics of its interior. Convection patterns change, the core's energy production changes, and so on. This ultimately affects the way a star looks in our telescopes.
What can be said about the star composition if the spectrum of a star shows the same absorption lines as the sun?
If the spectrum of a star shows the same absorption lines as the sun than you know that the star has the same composition as the sun. This means that the star is made of the same elements as the sun.
What makes a star's spectrum appear to be different from another stars?
The chemical composition of the star.
