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Live Stars is creating the new generation webcam platform that implements blockchain technology. The platform has a transparent structure and it offers a multitude of advantages against the projects currently existing on the market. The main goals of our project are to create a platform with an automated system, eliminate the existing webcam industry problems, and organize the work of the Live Stars´ project.

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Fastest Star in the Galaxy Has a Strange Origin

Supernova means "new star" because people used to think it was the beginning of a new star. Today we know that a supernova is the death of an old star. The gas of the star is pushed away by the explosion. It forms a giant cloud of gas called a planetary nebula. If the star was very heavy, the star will make a black hole.

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Gravity in a black hole is extremely strong. It is so strong that even light cannot escape from a black hole. Stars are hot because nuclear reactions happen inside them.

What is the closest star to Earth?

The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth. The third star is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun.

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They can be seen silhouetted against the glowing gas. Several of these dark clouds have a bright rim as they are illuminated and being evaporated due to the action of radiation from neighboring hot stars. This image shows the young stars at the centre, with gas and dust emissions. A good way to introduce the topic of stellar evolution is to start by asking learners how long they think stars last .

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The birth of a star

Stars are born in vast, slowly rotating, clouds of cold gas and dust called nebulae (singular nebula). These large clouds are enormous, they have masses somewhere between 100 thousand and two million times the mass of the Sun and their diameters range from 50 to 300 light years across. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements. Most stars have small amounts of heavier elements like carbon, nitrogen, oxygen and iron, which were created by stars that existed before them.

A NASA animation shows the hypervelocity star's ejectionafter a star explosion, kicking off the rogue flight across the Milky Way. ; then East will be on your left, South at your feet, West on your right, and the Zenith right in front of you. Mentally stretch the disk of the chart so that it forms a dome over your position. The positions of stars on this imaginary dome now correspond to their positions in the sky. Stars & Planets, p. 13 & 14 (Star positions); p. 16 & 17 (Appearance of the sky).

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(NASA) A famous example of one of these huge clouds is the Orion nebula in the constellation of Orion. It is visible with the naked eye if the sky is dark enough.

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When a supernova happens in a nebula, the explosion pushes the gas in the nebula together. This makes the gas in the nebula very thick (dense). Gravity and exploding stars both help to bring the gas together to make new stars in nebulas. These are areas that have more gas than normal space. The gas in a nebula is pulled together by gravity.

Orion's Belt or the Belt of Orion, also known as the Three Kings or Three Sisters,[1] is an asterism in the constellation Orion. It consists of the three bright stars Alnitak, Alnilam and Mintaka. This article is about the group of stars within the constellation Orion. For other uses, see Orion's Belt (disambiguation). Based on additional clues, the scientists say it was probably orbiting another star when its path changed.

The gas is lit up by the light from the central star which is the faint white dot in the centre of the nebula. The Boomerang Nebula is a young planetary nebula and the coldest object found in the Universe so far. Kohoutek 4-55 Nebula contains the outer layers of a red giant star that were expelled into interstellar space when the star was in the late stages of its life.

When the hydrogen in the centre of the star is depleted, the star's core shrinks and heats up. The outer part of the star, which is still mostly hydrogen, starts to expand. The star becomes larger, brighter and its surface temperature cools so it glows red.

If there is enough gas and dust for the temperature to become hot enough for nuclear reactions to start, the protostar will then technically be called a star. Stars spend most of their lives as main sequence stars fusing hydrogen to helium in their centres. The supernova belongs to the Large Magellanic Cloud, a nearby galaxy about light-years away. Even though the stellar explosion took place around BC, its light arrived here less than 25 years ago.

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  • The heaviest elements are made in the explosion of a supernova.
  • US 708 was suddenly without a gravitational tether to keep it in the same place, and all that rotational speed and energy then abruptly started moving in a straight line.
  • Alnitak (ζ Orionis) is a triple star system at the eastern end of Orion's belt and is 1,260 light-years from the Earth.
  • In this activity learners will make a poster showing the different stages of stellar evolution experienced by a Sun-like star.
  • A stellar nebula is where stars are born, whereas a planetary nebula is what a star forms at the end of its life.

How do stars die?

Their surface temperatures determine their colours and can range from under 3000°C (red) to over °C (blue). Further to the right are several smaller dark dust clouds with odd shapes.

Is naming a star a con?

Is ISR's star-naming business therefore a scam? No, not legally. The company promises to send you a piece of parchment, a booklet and a star map – and it delivers. It also promises to copyright your star's new name and location in a book – and it does.

An uncommon life for a star

What is a newborn star called?

From Protostar to Star For the next few million years, the protostar's gravity pulls in more material from the surrounding cloud into its disk. That disk transports the gas and dust onto the protostar, causing the protostar to grow. At that instant, the core ignites, and the new star is born.

Scientists speak of stellar evolution when talking about the birth, life and death of stars. The lifetime of individual stars is way too long for humans to observe the evolution of a single star, so how do scientists study stellar evolution? This is possible as there are so many stars in our galaxy, so we can see lots of them at different stages of their lives. In this way, astronomers can build up an overall picture of the process of stellar evolution.

The point on the horizon where the sun rose was called kükulu hikina, Kükulu means the direction and hikina means to rise. The sun set at kükulu komohana (komo means to enter).

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Can I buy a star?

Answer: When you talk about "buying stars" or "naming stars" for yourself or a friend, you are most likely referring to the claims of one of the commercial companies who promise to do this for you for money (something of the order of $US 50). You can do this, but it is not official.

If the Sun was a hypergiant star, it would reach out to as far as Jupiter. Proxima Centauri is the star that is closest to our Sun. This means that light from Proxima Centauri takes 4.2 years to reach Earth.

Some astronomers think that a gravitational or magnetic disturbance causes the nebula to collapse. As the gases collect, they lose potential energy, which results in an increase in temperature. Astronomers have known for centuries that stars have different colors.

How are stars classified on an HR diagram?

Several regions of the HR diagram have been given names, although stars can occupy any portion. The brightest stars are called supergiants. Star clusters are rich in stars just off the main sequence called red giants. Main sequence stars are called dwarfs.

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Birth, life and death of a star

The Sun is currently about halfway through its lifetime as a __________ star. In about 4.5 billion years time the Sun will swell up to form a __________ star engulfing the Earth as it does so. A planetary nebula is different to a stellar nebula. A stellar nebula is where stars are born, whereas a planetary nebula is what some stars form at the end of their lives. The relative sizes of the Earth, the present day Sun and a red supergiant star, Canis Majoris, in the constellation.

Once the fuel runs out in the core of the Sun, nuclear reactions will stop. The Sun will then have become a hot white dwarf star, left behind at the centre of the planetary nebula.

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The star becomes larger and brighter and its surface temperature cools so it glows red. Betelgeuse, as you observed in the last activity, is a red giant star. Main sequence stars come in different sizes and colours. Their sizes range from around 0.1 to 200 times the size of the Sun.

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On 9 October 1604, sky watchers, including astronomer Johannes Kepler, spotted a "new star" in the sky. Now, we have images of the remnants of the supernova and know that it is not a new star, but rather the death of a massive star. A black hole is a region of space where gravity is so strong that even light cannot escape.

And if the white dwarf is part of a binary system, it may avoid that fate altogether. By accreting matter from its companion star, the white dwarf can explode in a Type Ia supernova, leaving no remnant behind. Answering the question, "How do stars die?" also depends on its mass.