10 Largest Stars In The Universe
Feb 21, · With that said, so far, the winner of largest star in the known universe probably goes to UY Scuti — a massive red supergiant located in our own Milky Way galaxy in the constellation Scutum and. Jan 16, · What is the Largest Star in the Universe?Among the many many stars in our universe, today we try to discover which be the largest of them. If you have any pr.
Stars are immense balls of burning plasma. Yet, aside from the Sun in our own solar system, they appear as tiny pinpoints of light in the sky.
Our Sun, technically a yellow dwarf, is neither the biggest or the smallest star in the universe. While it's much larger than all the planets combined, it's not even medium-sized fhe comparison to other more massive stars. Some of these stars are larger because they evolved that way from the time they were what is the largest star in the universe, while others are bigger how to write your first business plan to the fact that they're expanding as they age.
Figuring out a star's size isn't a simple project. Unlike planets, stars have no distinct surface with which to form an "edge" for measurements, nor do astronomers have a convenient ruler to take such measurements. Generally, astronomers look at a star and measure its angular size, which is its width as measured in degrees or arcminutes or arcseconds. This measurement gives them a uhiverse idea of the star's size but there are other factors to consider. For example, some stars are variable, which means they regularly expand and shrink as how to train your dragon cn brightness changes.
That means when astronomers study a star such as V Monocerotis, they must look at it more than once over a period of time as lartest expands and shrinks in order to can calculate an average size. As with virtually all astronomic measurements, there's also an inherent margin of inaccuracy in observations due to equipment error and distance, among other factors.
Finally, a listing of stars by size must take into account that there may be larger specimens that simply haven't been studied or even detected as yet.
With that in mind, the following are the 10 largest stars currently known to astronomers. Betelgeuse, easily seen from October through March in the night sky, is the most well-known of the red supergiants. This is due in part to the fact that at roughly light-years from Earth, Betelgeuse is very close compared to the other stars on this list. It's also part of what is one the most famous of all the constellations, Orion.
With a known radius in excess of a thousand times that of our Sun, this massive star is somewhere between and 1, solar radii the unit of distance used by astronomers to express the size of stars equal to the current radius of the Sun and is expected to go supernova any time. This red hypergiant is among the largest known stars in our galaxy.
It has an estimated radius between 1, and 2, times that of the Sun. At this size, if placed in our solar systemit would reach nearly to the orbit of Saturn. It's one of a number of variable stars that appear in the constellation Canis Major. This red hypergiant star is estimated to be around a thousand times the radius of the Sun and is currently regarded as one of the largest such stars in the Milky Way. Located in the direction of the constellation Cepheus, VV Cephei A is about 6, light-years from Earth and is actually part of a binary star system shared with a companion smaller blue star.
The "A" in the star's name is assigned to the larger of the two stars in the pair. While they orbit one another in a complex dance, no planets have been detected for VV Cephei A. This red supergiant in Cepheus is about 1, times the radius of our Sun.
Thanks to its pretty reddish color, it's been given the nickname "Herschel's Garnet Star" in honor of Sir William Herschel, who observed it inand is also known by the Arabic name Erakis. This red variable star located in the direction of the constellation Monoceros is about 20, light-years from Earth. It may be larger than either Mu Cephei or VV Cephei A, but because of its lqrgest from the Sun and the fact that its size pulsates, its actual dimensions are difficult to determine.
After its last outburst inits size appeared to be smaller. Therefore, it's given a range typically between and 1, solar radii. The Thw Space Telescope has documented the shroud of dust moving away from V Monocerotis on several occasions.
This red hypergiant sstar in the constellation Dorado in the southern hemisphere skies is about 1, times the radius of the Sun. It's actually located outside of the Milky Way in the Large Magellanic Clouda nearby companion galaxy to our own that lies aboutlight-years away.
WOH G64 has a thick disk of gas and what is the largest star in the universe surrounding it, which univsrse likely expelled as the star it began its death throes. This star was once more than 25 times the mass of the Sun but as it neared exploding as a supernova, began to lose mass. Astronomers estimate that it has lost enough component material to make up between three and nine solar systems. Slightly smaller than WOH G64, this red hypergiant is 1, solar radii.
At a relatively close 9, light-years from Earth, V Cephei is located in the constellation Cepheus. WOH G64 is an irregular variable, which means that it pulsates on an erratic schedule. Astronomers studying this star closely have identified it as being largedt of a larger group of stars called the Cepheus OB1 stellar association that contains many hot sfar stars, but also a number of cooler supergiants such as this one.
Here's another entry from the constellation Cepheus in the northern hemisphere sky. This star may not seem all that large in its own neighborhood, however, there aren't many others in our galaxy or nearby that can rival it.
This red supergiant's radius is somewhere around 1, solar radii. If it were at the center of our solar system in place of the Sun, its outer atmosphere would stretch beyond the orbit of Jupiter. While KY Cygni is at least 1, times the what simple machines make up a wheelbarrow of the Sun, some estimates put it closer to 2, solar radii although it's likely closer to the smaller estimate.
KY Cygni is located about 5, light-years from Earth in the constellation Cygnus. Unfortunately, there are no viable images available for this star at this time. Representing the constellation Sagittarius, this red supergiant is 1, times the radius of our Sun.
KW Sagittarii lies about 7, light-years from Earth. If it were the main star in our solar system, wht would stretch out well beyond the orbit of Mars. Astronomers have measured stra temperature of KW Sagittarii at around 3, K Kelvin, the base unit of temperature in the International System of Units, having the unit symbol K.
This is much cooler than the Sun, which is 5, K at how to induce cancer in mice surface. There are no viable images available for this star univeerse this time. Share Flipboard Email. John P. Millis, Ph. Professor of Physics and Astronomy. Updated January 10, Cite this Article Format.
Stars are massive spheres of gases held together by gravity. The nearest star we have is the Sun at the center of the solar system. Its about km away from us but still we can feel its hot temperature. Where there are as many stars in the universe as much as grains of sand earth has. Where some stars are smaller in size where some are so Big that our Sun will look like a tiny dot in front of them. The below is the list of top 10 largest stars known in the universe. The brightest star in the night sky is between and million years old.
The distance from Earth is about 8. Sirius has a radius of 1. Surface temperature is approximately 9, K. Pollux is the brightest star in the Gemini constellation. Surface temperature is approximately 4, K. Arcturus is a red giant star which is the brightest star in the constellation Botes the Herdsman. It is the fourth brightest star in the night sky, after Sirius, Canopus and Alpha Centauri. The distance from Earth is about Arcturus is around 25 times larger than the sun, radius is about 17,, km.
Arcturus is around 7. It will expand further after its helium supply is exhausted, slough off its outer shell and become a white dwarf inside a planetary nebula. Aldebaran is an orange giant star located about 65 light years away in the constellation of Taurus. Aldebaran is around 44,2 times larger than the Sun, the radius is about 30,, km. Surface temperature is approximately 3, K.
Measured it as Rigel is the brightest star in the constellation Orion and the seventh brightest star in the night sky. Around 12, times as luminous as the Sun.
Rigel is most visible in winter evenings in the northern hemisphere and summer in the southern. The distance from Earth is about light year. It is around 78 times larger than the Sun, the radius is approximately 54,, km. Surface temperature is approximately 11, K.
Antares is the brightest star in the constellation Scorpius, it has around times the radius of the Sun and 12 time massive than the Sun, if it was placed in the center of our solar system it would reach beyond the orbit of Mars. It is around 57, times brighter than the Sun.
Around 12 million years old Antares is already nearing the end of its lifespan and is expected to explode as a supernova in the next million years. Low mass stars such as our sun exist in their main sequence for several billion years. Surface temperature is approximately 18, K.
Betelgeuse is a red supergiant which is the ninth brightest star the brightest star in the sky is the Sirius in the night sky and second brightest in the constellation of Orion. This star is light years away from Earth with 20 times more mass than the Sun. Betelgeuse radius is about ,, km. Red supergaints that have the same age as Betelguese are expected to end its life soon.
Mu Cephei is a red supergiant star in the constellation Cepheus. It is one of the largest and most luminous star known in the Milky Way. The distance to Mu Cephei is approximately light year. With 20 times more mass than the Sun it has 1, times more radius than the Sun, about ,, km.
Mu Cephei is nearing death. It has begun to fuse helium into carbon, whereas a main sequence star fuses hydrogen into helium. The helium-carbon cycle shows that Mu Cephei is in the last phase of its life and may explode as a supernova.
Around 38, times as luminous as the Sun. VV Cephei, also known as HD This red hypergiant star is estimated to be between 1, and 1, times the radius of the Sun. It is the largest known stars by radius and also one of the most luminous of its type. It is around , times brighter than the Sun. With this size it would reach nearly to the orbit of Saturn if placed in our solar system. This star is 4, light years away from Earth. For your unquenchable thirst of knowledge.
We at Top 10 Unknown create three lists every day based variety of topics. That is why we say. February 23, No Comments.
Share on facebook Facebook. Share on twitter Twitter. Share on linkedin LinkedIn. Share on whatsapp WhatsApp. Share on reddit Reddit. Share on pinterest Pinterest. Recent Posts. December 23, September 29, February 28, That is why we say — Know The Unknown. Get Daily UPdates.