How old is shooting star?

Answer 1

The life of stars depend on the size of the star. The larger the star, the shorter the life.

A hot supergiant will last millions of years.

A cooler yellow dwarf may last billions of years.

The coolest star - a red dwarf lasts, well, any created are still burning.

The longest a star can live is 10 billion years

The sun will last for about 6 billion, it is almost in its 4th billionth year

Answer 2

Most stars can shine for several billion years. Our sun is about 4.5 billion years old and will probably keep shining for another 4 or 5 billion years. The oldest stars that we can see are not really stars but galaxies. Some of these are so far away that we see them as they were over 10 billion years ago.

Answer 3

A LIGHTYEAR is not a measure of time, it is a measure of distance.

One LIGHTYEAR is equal to 6 trillion miles, the distance light can travel through a vacuum or uninterrupted space in one Julian year.

It takes light 8 1/3 minutes to travel from our Sun to the Earth. Depending on how far away a star is, determines how long it takes for its light to reach earth.

If a star is described as being 4 light years away (4 x 6 trillion miles), then it takes 4 years for this light to reach our eyes.

Everything that we can see in the Universe is really a snap shot of a past event, not as it appears in real time.

Answer 4

Stars larger than our Sun will die more quickly, and the more mass the star has, the more quickly it will age and "die" in a nova or supernova explosion.

Our Sun is about 4.5 billion years old, and we expect it to survive about that much longer. A star a hundred times more massive, such as the red supergiant star Betelgeuse (at the shoulder of Orion the Hunter) is about 100 million years old and will go supernova relatively "soon" on an astronomical scale. (Betelgeuse might go supernova tomorrow, or 100,000 years from now, both of which would be "soon" to an astronomer.)

Answer 5

Stars that WILL explode have a very short lifespan - in the millions rather than billions of years as in the case of our Sun.

The only exception is a white dwarf, that accumulates enough matter from a nearby star, that "pushes" it over a limit - called the Chandrasekhar limit. If that happens, the stellar remnant will explode as a type la supernova.

Answer 6

This is such a big range, it cannot be answered.

There are stars that are so large that they live for only millions of years.

There are others (brown dwarfs) which can live more than a TRILLION years.

Sorry we can't give you a specific answer.

A star the size of the sun lives on the order of 10 billion years.

Answer 7

That varies a lot. The more massive stars are wasteful with their fuel, e.g. a star twice as massive as the Sun will use up its fuel much more than twice as fast. The most massive stars might live only a few hundred million years, or even less. A less massive star (a red dwarf) might live trillions of years.

That varies a lot. The more massive stars are wasteful with their fuel, e.g. a star twice as massive as the Sun will use up its fuel much more than twice as fast. The most massive stars might live only a few hundred million years, or even less. A less massive star (a red dwarf) might live trillions of years.

That varies a lot. The more massive stars are wasteful with their fuel, e.g. a star twice as massive as the Sun will use up its fuel much more than twice as fast. The most massive stars might live only a few hundred million years, or even less. A less massive star (a red dwarf) might live trillions of years.

That varies a lot. The more massive stars are wasteful with their fuel, e.g. a star twice as massive as the Sun will use up its fuel much more than twice as fast. The most massive stars might live only a few hundred million years, or even less. A less massive star (a red dwarf) might live trillions of years.

Answer 8

Depends on the type of giant star.

A red giant may only last a billion years, whereas a blue giant may last a few billion years.
A supergiant star may have a lifetime as short as 10 million years, whereas early population III stars may have only lasted a million years.

Answer 9

Everything you need to know depends on its initial mass.

Small stars burn dimly, but for a very long time; tens of billions of years or more. Giant stars use up all their fuel quickly and explode into supernovas in only a few hundred million years.

A star the size of our Sun will last for about 10 billion years, of which perhaps a little more than half this time has passed. So we can expect our Sun to last another 4 billion years or so.

Answer 10

Stars live different lengths of time, depending on how big they are. A star like our Sun lives for about 10 billion years, while a star which weighs twenty times as much lives only 10 million years, about a thousandth as long.