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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

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How can solar radii be used to describe the sizes of stars?

this is simple its used to describe the star sizes through a process that is complicated and people see this through the life cycle of a star as the minerals inside the star change over time


Why would an older main sequence star composed of a higher percentage of helium than a young main-sequence star?

Im no astrophysicist but an older star would consume more of its hydrogen over time in comparison to helium through its fusion process. Over time concetrations would change resulting in a higher helium to hydrogen ratio.


The proper motion of a star or other object is measured by what?

The proper motion of a star or object is measured by its angular change in position on the sky over time, typically in units of arcseconds per year. This motion is caused by the true motion of the star through space, as well as the motion of Earth around the Sun.


Does the right ascension and declination of the star Arcturus change with the change of month or is it the same throughout the year?

Basically they stay the same, although over tens of thousands of years, they change slightly.


Is it true that fusion provides a force that balances the inward force of gravity in creating stars?

Sort of - there energy released by the fusion occurring in the core of the star balances the force of gravity trying to make the star collapse inwards.As a star evolves this balance changes and the size of the star will change over time. When the material available for fusion runs out in the core, gravity wins the fight.

Related Questions

How did star signs change over time?

Cos humpty dumpty had a gr8 fall


How does the Moon's shape change over time?

How did the dirction of the moon change over time? How did the dirction of the moon change over time?


Change over time is referred to as?

A change over time is often referred to as a gradual change.


What is a manual star-delta starter?

In manual star delta starter, the change over from star to delta does not happen automatically. The operator or user puts on the starter, and after few seconds he pushes a lever or handle to change over to Delta. In automatic method, change over happens from star to delta using an automatic preset timer.


Do Friends Change Over Time?

Yes, friends do and will change over time. Every person changes over time.


Is acceleration the change of distance over time?

No, acceleration is the change in speed over time.


How can eutrophication change a lake over time?

how can eutrophication change a lake over time


How else can islands change over time?

Islands change over time by erosion


Can your Rh factor change over time?

No, your Rh factor does not change over time.


What is a Manual starter?

In manual star delta starter, the change over from star to delta does not happen automatically. The operator or user puts on the starter, and after few seconds he pushes a lever or handle to change over to Delta. In automatic method, change over happens from star to delta using an automatic preset timer.


How can solar radii be used to describe the sizes of stars?

this is simple its used to describe the star sizes through a process that is complicated and people see this through the life cycle of a star as the minerals inside the star change over time


What is a change of a species over time called?

Evolution is a change in species over time.