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Stars are basically big leaky buckets of light, and a higher mass main-sequence star has a similar energy density of light within it, and it takes that light a similar time to leak out (often hundreds of thousands of years), but it has a much larger volume filled with that light, making it a bigger and leakier bucket, hence more luminous.
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∙ 13y ago
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∙ 12y agoMore massive stars have much higher temperatures and pressures. Although they have more fuel, it is consumed at a much higher rate than lower mass stars. They burn very brightly and hot, but for less time.
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∙ 6y agoMassive stars have a greater gravity, the star is therefore subject to greater pressure, and the core needs to get hotter until equilibrium is reached. As a result, fusion occurs at a faster rate, and the star uses up its fuel faster.
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∙ 9y agoSmall-mass stars have longer lifetimes than large-mass stars because large mass stars burn faster. This is due to the greater gravity found on large mass stars.
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∙ 6y agoMore massive stars "burn" hotter, using proportionately more fuel per unit time.
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Why is it unlikely to find life around stars more massive than the sun?
The more massive a star is, the shorter it lasts. The most massive stars do not last long enough for life to develop on any planets around them. Some do not even last long enough for planets to form.
Will a stars lifecycle be shorter or longer if its mass is greater?
Shorter. More massive stars have much higher temperatures and pressures. Although they have a lot more fuel, it is consumed at a much higher rate than lower mass stars. They burn very brightly and hot, but for less time.
What will most massive stars form?
The most massive stars will form ultra large stars, which will collapse into black holes upon their demise.
What is the range of expected stars lifetime?
The highest-mass stars have the shortest lifetimes; a star 60 times as massive as the Sun is predicted to have a lifetime of only a few million years, and extremely massive stars like R136a1 have even shorter lifetimes. In contrast, small, cool, dim stars can burn for a very long time; the smallest red dwarf stars may last for a trillion years before burning out.
How long a star lives depends on?
The suns mass. More massive stars have much higher temperatures and pressures. Although they have a lot more fuel (hydrogen), it is consumed at a much higher rate than lower mass stars. They burn very brightly and hot, but for less time.
Is the oldest star the biggest star?
No. The most massive stars have the shortest lifespans.
What depends on a stars weight?
Its lifespan and its final form when it dies. Heavier stars have shorter lifespans and more spectacular transformations at death.
Why do massive stars have shorter lives than others stars do?
Massive Stars Use Their Hydrogen Much Faster Than Stars Like The Sun Do.
Why do the most massive stars on the HR diagrahm have the shortest lifespans on the main sequence?
Because they use up more fuel faster
Do stars have lifespans?
yes
How long is it before a massive star becomes a red supergiant?
Supermassive stars have extremely short lifespans, ranging from some 50 million years to a mere million years.
Why are the youngest star are the blue stars?
Only very massive stars are blue. This is because they must burn hotter to resist the crush of gravity due to their large masses. They burn very hot, but also very fast so they have much shorter lifespans than less massive stars do. Therefore, blue stars are young because they become red supergiants and then go supernova fairly rapidly in star lifespan terms. They just do not last very long in the blue giant stage, so those stars, like Rigel in Orion, are young stars. If they were not, they would be red supergiants or neutron stars or black holes by now.
What does a stars life depend upon?
Its mass - the larger its mass the shorter its life.The smallest and least massive stars can last for trillions of years, whereas a massive star may end its life in millions of years.
What is the most important characteristic in determining the length of a stars life?
Mass. Higher mass stars, while having more fuel to burn, counterintuitavely have shorter lifespans, as they are able to bring more of that mass to temperatures capable of supporting fusion.
Why is it unlikely to find life around stars more massive than the sun?
The more massive a star is, the shorter it lasts. The most massive stars do not last long enough for life to develop on any planets around them. Some do not even last long enough for planets to form.
Will a stars lifecycle be shorter or longer if its mass is greater?
Shorter. More massive stars have much higher temperatures and pressures. Although they have a lot more fuel, it is consumed at a much higher rate than lower mass stars. They burn very brightly and hot, but for less time.
What does the life span of a star depend on?
How massive it is and its luminosity (the mass and luminosity correlate with each other with most stars, mainly the main sequence stars). The more mass a star has, the shorter its lifespan.
