Where Do Star Come From

Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. via

Are stars born or made?

Well, stars are not made, they make themselves! Or maybe I should say: they come into existence because of a powerful force of nature called gravity. Galaxies are where new stars are born. In galaxies, there are very large and fluffy clouds of gas and dust called nebulae. via

What is the origin of a star?

Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun. Without this dust and gas, stars would not form. via

Why are stars so bright?

Stars shine because they are extremely hot (which is why fire gives off light — because it is hot). The source of their energy is nuclear reactions going on deep inside the stars. In most stars, like our sun, hydrogen is being converted into helium, a process which gives off energy that heats the star. via

Where do stars in the sky come from?

Where do stars come from? According to current star formation theory, stars are born as clumps within gigantic gas clouds that collapse in on themselves. The cloud's material heats up as it falls inward under the force of its own gravity. via

How long do stars live for?

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. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years. via

What is the biggest star?

Star via

Is a star a sun?

The Sun is a star. There are lots of stars, but the Sun is the closest one to Earth. It is the center of our solar system. The Sun is a hot ball of glowing gases. via

Which star is the hottest?

But the hottest known stars in the Universe are the blue hypergiant stars. These are stars with more than 100 times the mass of the Sun. One of the best known examples is Eta Carinae, located about 7,500 light-years from the Sun. via

Do stars form planets?

According to our current knowledge, planets are formed around a new star by condensing in a disc of molecular gas and dust, embedded within a larger molecular cloud. Condensation increases until they become giant planets, which are heated, then cleanse their orbits in the disc and possibly bend it. via

Can you touch a star?

4 Answers. Surprisingly, yes, for some of them. Small, old stars can be at room temperature ex: WISE 1828+2650, so you could touch the surface without getting burned. Any star you can see in the sky with the naked eye, however, would be hot enough to destroy your body instantaneously if you came anywhere near them. via

What color is the hottest star?

White stars are hotter than red and yellow. Blue stars are the hottest stars of all. via

Do stars emit light?

Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in the sky are all light-years from Earth. via

Why do I see a star moving?

You're absolutely right that stars twinkle — and sometimes appear to move around — due to our atmosphere “scrambling” their light as it travels from the top of Earth's atmosphere to the ground. This phenomenon, also called scintillation, tends to occur more obviously in bright stars. via

How many stars are there?

There are an estimated one hundred billion (100,000,000,000) stars in our own Milky Way galaxy, although some estimates range up to four times that many, much depending on the number of brown dwarfs and other very dim stars. A typical galaxy may contain anywhere between about ten million and one trillion stars. via

How are stars born?

A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion. And once the fusion reactions begin, they exert an outward pressure. As long as the inward force of gravity and the outward force generated by the fusion reactions are equal, the star remains stable. via

What color stars have the shortest lifespan?

So the total lifespan of a star with the mass of the Sun is about 10 billion years. The smallest stars are the red dwarfs, these start at 50% the mass of the Sun, and can be as small as 7.5% the mass of the Sun. via

Will our Sun become a black hole?

However, the Sun will never turn into a black hole, because it is said to have less mass than needed to turn into one. When the Sun is about to reach its end and run out of its fuel, it will automatically throw off outer layers turning into a glowing gas ring known as a “planetary nebula”. via

Do stars live forever?

No. Stars are born, live, and die. This process is called the "life cycle of a star". Most of the time a star shines, it is in a stage of its life cycle called the main sequence. via

Which is bigger sun or star?

Although the Sun appears larger to us than any other star, there are many stars which are much larger. The Sun appears so large compared to the other stars because it is so much closer to us than any other star. The Sun is just an average sized star. Mu Cephi - about 1500 times the size of our sun. via

What is the biggest star in the universe 2020?

UY Scuti. UY Scuti is the largest star in the universe and dwarfs all other stars. via

Who is the smallest star?

In 2017, an international team of astronomers announced the discovery of a so-called red dwarf star that's so small it barely functions as a star. Code-named EBLM J0555-57Ab and lying some 600 light-years away, it's similar in size to the planet Saturn. via

Why is Venus called Earth's sister?

Venus and Earth are often called twins because they are similar in size, mass, density, composition and gravity. Venus is the hottest planet in the solar system. Although Venus is not the planet closest to the sun, its dense atmosphere traps heat in a runaway version of the greenhouse effect that warms Earth. via

Is our sun a red giant?

In a few billion years, the sun will become a red giant so large that it will engulf our planet. The sun is currently classified as a “main sequence” star. This means that it is in the most stable part of its life, converting the hydrogen present in its core into helium. via

Is Earth a star?

The Earth is an example of a planet and orbits the sun, which is a star. A star is usually defined as a body of gas which is large enough and dense enough that the heat and crushing pressure at its center produces nuclear fusion. This is a fancy way of saying that it glows or burns, like our sun. via

Which star is similar to Sun?

At a distance of twelve light years from Earth and visible to the naked eye in the evening sky, Tau Ceti is the closest single star that has the same spectral classification as our Sun. via

Are all stars white?

Most stars in the night sky appear to be white when they really are not. Many of them are red, blue, green, orange etc. But because they are light years away from us, our eye is hardly ever able to distinguish the color and we see it as either white or slightly blue. via

What is the hottest color?

No matter how high a temperature rises, blue-white is the hottest color we are able to perceive. via

Why do stars form?

Stars are born within the clouds of dust and scattered throughout most galaxies. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. As the cloud collapses, the material at the center begins to heat up. via

How stars and planets are born?

The Origins Of Stars And Planets. Like the giant galaxies in which they appear, stars and their planets form when clumps of gas and dust contract to much smaller sizes. During the later stages of the contraction process, a rotating disk of gas and dust formed around the central mass that would become a star. via

Is the sun a planet?

The sun and moon are not planets when you consider the objects in space they orbit. For the sun to be a planet, it would have to orbit another sun. Although the sun is in a orbit, it moves around the center of mass of the Milky Way galaxy, not another star. via

Has anyone touched a cloud?

Unfortunately, it does not feel like cotton balls or cotton candy, but most people have technically touched a cloud before. If you wanted to touch an airborne cloud, the best way to do this is either skydiving or in a hot air balloon, though I would not want to be stuck in a cloud while in a hot air balloon. via

Can we touch rainbow?

We could touch rainbows if they were physical objects. But rainbows, unfortunately, are not physical objects. In short, you can touch someone else's rainbow, but not your own. A rainbow is light reflecting and refracting off water particles in the air, such as rain or mist. via

Can we ever visit a star?

Traveling to the stars is very difficult because they are so far away. The nearest star is 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers) away. It is always possible that sometime in the future people may find a way to travel to the stars, but right now we just do not have the technology. via

Which star is the coldest star?

According to a new study, a star discovered 75 light-years away is no warmer than a freshly brewed cup of coffee. Dubbed CFBDSIR 1458 10b, the star is what's called a brown dwarf. via

How hot is a green star?

Warm it up to 6000 Kelvin (about the temperature of the Sun, 5700 C or 10,000 F) and it peaks in the blue-green. Heat it up more, and the peaks moves into the blue, or even toward shorter wavelengths. via

Is our sun a white star?

Actually, the sun — like other G-type stars — is white, but appears yellow through Earth's atmosphere. Later, the sun will shed its outer layers, forming a planetary nebula and leaving behind a dead core of mostly carbon and oxygen — a very dense and hot white dwarf star, about the size of the Earth. via

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. via

Does Earth shine like star?

Speeding outward from the Earth and moon system, you pass the orbits of the planets Mars, Jupiter and Saturn. From all of these worlds, Earth looks like a star, which gets fainter as you get farther away. via

Are we made of stars?

Stars that go supernova are responsible for creating many of the elements of the periodic table, including those that make up the human body. 'It is totally 100% true: nearly all the elements in the human body were made in a star and many have come through several supernovas. via

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