Which stars have longer lifetimes on the main sequence?

On the Main Sequence, the more massive stars are bigger, hotter, more luminous, and die faster. The life span of stars ranges from about 10 million years for the blue giants to about 100 billion years for the red dwarfs.

Which have longer main sequence lifetimes low mass stars or high mass stars?

A main sequence star is powered by fusion of hydrogen into helium in its core. Fusion is stabilized by a natural pressure-temperature thermostat. High-mass main sequence stars have shorter lifetimes than low-mass main sequence stars.

Do stars with high luminosities or low luminosities have longer lifetimes?

Stars that are hotter and more luminous than the Sun live for shorter times, while stars that are cooler and less luminous live for longer times. This seems reasonable, since more luminous stars must be putting out energy at a higher rate, so they use up their hydrogen “fuel” faster.

Why are main sequence lifetimes shorter for more massive stars?

Why does mass determine the main-sequence lifetime of a star? Because more massive stars burn fuel faster and therefore have shorter lives.

Which main sequence stars have the lowest mass?

Z Z certainly has the lowest mass on the main sequence. It will not evolve off the main sequence for a very long time, so the evolved stars are almost certainly more massive.

Which main sequence stars have the shortest lifetimes?

-Stars on the main sequence are happily converting hydrogen to helium in their cores – stable (for now). -O stars have the shortest lifetimes (less than 10 million years).

Which star has a longer life low mass or large mass?

A star’s life cycle is determined by its mass. The larger its mass, the shorter its life cycle.

Why do high mass main sequence stars have shorter lifetimes than those of lower mass quizlet?

Why do high-mass main sequence stars have shorter life-times than those with lower mass? A star’s main sequence lifetime is primarily based on the mass of the star. high-mass main-sequence stars have a shorter lifetime because they go through nuclear reactions quicker, and use go the hydrogen in their core quicker.

Which statement describes why high mass stars have shorter main sequence lifetimes than low-mass stars quizlet?

-High-mass main-sequence stars have shorter lifetimes than those of lower-mass stars because high-mass stars burn their fuel at much faster rates. -High-mass main-sequence stars have longer lifetimes than those of lower-mass stars because they have a much larger supply of nuclear fuel.

Why are massive stars generally shorter lives than low-mass stars?

Massive stars live shorter lives than the common small stars because even though they have a larger amount of hydrogen for nuclear reactions, their rate of consuming their fuel is very much greater. The lifetime = amount of fuel/consumption rate.

How do low mass stars in the lower region of the main sequence produce their energy?

In the lower main sequence, energy is primarily generated as the result of the proton–proton chain, which directly fuses hydrogen together in a series of stages to produce helium.

What main sequence stars have the lowest mass?