Modern astronomy defines stars as huge balls of plasma, consisting of hot mass. Mankind has always been interested in the question of what is the biggest star in the Universe and what are its dimensions. This rating includes the TOP 10 most similar objects known to mankind. However, he has a certain share of conditionality – in space for sure, there are big stars, but we don't know yet, and some of them are variable stars that can be compressed and expanded.
10. Mu Cephei
One of the largest and most powerful stars in our Galaxy with a luminosity of 350 thousand times more solar is rightly included in the TOP ten stars in our rating. It's approximately a 650-1420 more of our star and its size becomes clear what the biggest star is huge. Mu cephei is able to accommodate the area up to 1 billion Suns and 2.7 quadrin objects such as the Earth. If to imagine our planet in the form of a conventional Golf ball with a diameter of 4.3 cm width of this star on this scale would be equal to 5500 meters, that is two corresponding values of the Golden gate bridge. Mu cephei 60 thousand brighter than the Sun, and its bolometric luminosity exceeds the sun 350 times. However, she belongs to the category of dying, as scientists have recorded on it an irreversible process of carbon synthesis.
9. V766 Centauri
In the ranking of the biggest stars are presented and a yellow supergiant. The radius of V766 Centauri is larger in 1490 times in comparison with the Sun. The object has one distinctive feature – in fact it is a double star with HR 5171. Her "partner" is much smaller and is so close, almost touching with a more massive star. Located in the same constellation at a distance of about 12 thousand light years from the Sun.
8. AN Scorpion
As a red supergiant with a radius of about 1411 sun, the object confirms the assumption looks like the biggest star and how she can get in size. From the Ground it separates 7.4 thousand light years. The star is surrounded by a dust shell, a source of microwave radiation, water and silicon oxide. In the observation period, they were approaching AN Scorpion with a speed of 13 km/s, which confirmed the ongoing process of compression giant.
7. KY Swan
Hyper-giant, with a radius of 1420 Sunny, for the right to occupy a place in the TOP 10 largest stars in the Universe. This is the star of the edge type and if it had less luminosity, it is no longer belonged to the supergiants. Located in the distance of 5 thousand light-years from Earth. KY Swan is a very bright object, which exceeds our light on this indicator at least 138 thousand times.
6. VX Sagittarius
Another red supergiant included in the list the largest. Belongs to the group of semiregular variable stars, according to scientists is gradually losing ground due to the impact of the stellar wind. Big stars in the Universe, usually located on a huge distance from the Earth and VX Sagittarius is no exception – with our planet share approximately 5250 light years. The radius of the giant star varies 850-1940 sun, and its diameter probably exceeds the same parameters of the asteroid belt of the Solar system.
5. Westerlund 1-26
Red hypergiant located in the constellation of the Altar. Opened by the Swedish astronomer B. Westerlund in the system of a star cluster Westerlund 1. Anyone who wonders what is the big star, we should know that Westerlund 1-26 luminosity greater than the sun in 380 thousand times, and its surface temperature higher than 3000 K. In the pictures ESO Westerlund 1 is one of the most massive open clusters in the Galaxy.
4. RW cephei
Red hypergiant whose name is given in the constellation of Cepheus. Away from our planet at 11.5 thousand light-years. It is not accidentally included in the TOP 10 of the biggest stars, as the radius of more solar in 1535 times. The luminosity of this object in 625 thousand times greater than that of the Sun. At the end of its existence, it can be gipernovae star, and its core transformered into a black hole.
3. WON G64
The red supergiant of the constellation Gold Fish, the second largest star in the Universe. Its estimated radius can reach at least 1540 Sunny. According to astrophysicists, this major facility, one of the TOP biggest stars, has lost 1/3 of its mass due to stellar wind. Using complex telescopes Very Large Telescope, located in Chile, managed to get a picture that helps to understand that the dust and gas around WON G64 forms a torus, which reduces its luminosity to 280 thousand Sunny.
2. VY Canis
Well-known astronomers hypergiant, which is called after the homonymous constellation reaches a size of 1600 solar radii. The mass of the object included in the list of the biggest stars is only 17-fold superiority over the Sun, which confirms its extremely low density. The volume of the giant larger than the earth in 7·1015 times. Astrophysicists studying the star using the Hubble space telescope, is called, it will explode as a Hypernova in 100 thousand years. Photo VY Canis major is visible as the star ejects large amounts of gas during the outbreak.
1. UY Shield
A true supergiant located in the constellation of the Shield. According to astronomers, the radius is 1708 Sunny, and the diameter is 2.4 billion km away. the biggest star in the Galaxy has a volume that exceeds the parameters of the Sun in 5 billion times. A star is defined as a red hypergiant variable type with reference in the pulsation period of 740 days. In the visible part of the spectrum the luminosity exceeds the sun in 120 thousand times, in the absence of accumulations of cosmic dust UY Shield could become one of the five objects, which can be seen from Earth with the naked eye.