What gives birth to a star?

Powerful Stellar Eruption

The observations of Eta Carinae's light echo are providing new insight into the behavior of powerful massive stars on the brink of detonation. As the cloud collapses, a dense, hot core forms and begins gathering dust and gas.

What is the birth of a star called?

The first stage in the birth of a star is called a protostar. ... Over the next 100 million years, gravity continues to collapse the T Tauri star until the temperature at its core reaches the point that nuclear fusion can begin.

What is the birth life and death of a star?

stars are born in vast clouds of gas and dust. stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.

What is the only evidence we can get from a star?

So far, the only real evidence we have for the first stars is in the tracks they've left behind: the metals they formed that we see in later generations of stars; the effects of their ionizing radiation on the primordial gas in the universe; and perhaps their remnant black holes.

What is the death of a star called?

As the hydrogen runs out, a star with a similar mass to our sun will expand and become a red giant. When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova.

Do stars give birth?

Like people, stars are born, they grow old and they die. Their birth places are huge, cold clouds of gas and dust, known as 'nebulas'. The most famous of these is the Orion nebula, which is just visible with the unaided eye.

What will happen if the sun dies?

After the Sun exhausts the hydrogen in its core, it will balloon into a red giant, consuming Venus and Mercury. Earth will become a scorched, lifeless rock — stripped of its atmosphere, its oceans boiled off. ... While the Sun won't become a red giant for another 5 billion years, a lot can happen in that time.

Do we need stars to live?

In addition stars are very important because they make life on Earth. the most important is the Sun, because without that it wouldn't be life on Earth . Earth would just be a rock with ice. For example: Ancient sailors used the stars to help guide them while they were at sea.

How long can a star live?

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 20 times as much lives only 10 million years, about a thousandth as long.

Are stars alive?

Stars are not alive, and yet we speak of their origins and ends as “birth and death.” It's a convenient, if fanciful, way of describing the ultimately ill-fated relationship between matter and energy that is a star.

What are the 5 characteristics of a star?

Characteristics used to classify stars include color, temperature, size, composition, and brightness.

Why do stars twinkle?

As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the bending of the light changes too, which causes the star's appearance to wobble or twinkle.

What can contract to give birth to a star?