Guidelines

Do more massive stars have shorter lifespans?

Do more massive stars have shorter lifespans?

A star’s life expectancy depends on its mass. Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion.

Do Larger stars have a longer lifetime?

1) The bigger a star is, the longer it will live. 2) The smaller a star is, the longer it will live. A smaller star has less fuel, but its rate of fusion is not as fast. Therefore, smaller stars live longer than larger stars because their rate of fuel consumption is not as rapid.

Why do more massive stars have shorter main sequence lifetimes?

All main-sequence stars are made of the same stuff, mainly H and He. So why do massive stars have shorter lifetimes? After all, they have more fuel to burn. A star with 60 times the mass of the Sun has 60 times as much nuclear fuel as the Sun, but burns it H more rapidly.

What is the relationship between a star’s mass and its lifetime?

A star’s mass gives a measure of the amount of “fuel”, and its luminosity gives a measure of the rate at which this “fuel” is consumed by nuclear burning, so a star’s lifetime is proportional to its Mass divided by its Luminosity.

Which is more luminous stars have shorter lives?

Massive, more luminous stars have shorter lives than their smaller, dimmer counterparts. true What is the approximate chemical composition (by mass) with which all stars are born?

Which is more massive stars or less massive stars?

More massive stars have __________ lives than less massive stars. shorter Each choice below lists a spectral type and luminosity class for a star. Which one is a red supergiant?

How is the size of a StAR related to its life cycle?

The larger its mass, the shorter its life cycle. A star’s mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.

How long does the hydrogen of a massive star last?

A massive star will burn at an extremely high temperature; it will be beautifully luminous, but its hydrogen will only last for millions of years. This may seem like a long time, but it is like a blink of the eye in comparison to smaller stars that will exist for billions of years.

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