What is the biggest star in our universe?

I've heard from many people that the Sun is the only star in the universe, but some books say differently. What is you take on this?|||Those people that are telling you that the sun is the only star in the universe are completely wrong.


And every astronomy book says differently.





In our galaxy alone, there are over 200 billion stars.


There are over 100 billion known galaxies in the universe, and if our galaxy is average, then there are over 20 TRILLION stars (that we know of so far).





When you say "biggest", there are 2 possible interpretations.


Biggest could mean largest across. In that case, the largest in diameter star is VY Canis Majoris (1800-2100 times the diameter of the sun).





But biggest could also mean most massive (heaviest).


In that case, its a tie between Eta Carinae and the Pistol Star (both estimated to be about 150 times the mass of the sun).|||Other than the Sun, cut might've been The Betelgeuse, owe me none of these ol copies of the previously suggested papers crypts.|||There are billions and billions of stars in our universe, and about 100 billion in our galaxy. Ours is small. Stars range from 1/12 the mass of the sun to ~115 times the mass of the sun. The most massive (as of June 2007) is in the link|||It is difficult to determine the size of a star. If you mean the star with the biggest radius then it could be a star like Beutelguese in Orion which is a red giant that is nearing the end of its life. If you meant the amount of mass that the star has , it could be a black hole that is very massive, but not big in size. To determine the radius of a star we need to measure the brightness, the distance to the star, and the color. It is hard to know all of these. The color of the star is a measure of its part in the life cycle of stars.|||Hi. There are many visible stars much bigger than the Sun. Two are in Orion. The Sun is a rather small type O star.|||You need to talk with some more knowledgeable people. Either that, or you misunderstood what they were trying to say.





My favorite whopper of a star is Deneb in Cygnus. It's a lot farther away than most of the other stars in the night sky that look as bright as it does.|||If you mean our galaxy that would be the Sun. I'm not sure about our universe.|||Betelgeuse and Sirius are the easiest to spot, both of them are in Orion constellation.


The sun in milky way galaxy is a middle age, as well as middle size star.|||wow, who are you talking to?|||Well, don麓t believe everything you hear.





There are billions and billions of stars in the universe, not only the Sun. Now, your question is what is the biggest star in our universe? Let me give you two candidates:





1. The Pistol Star


2. The Eta Carinae star





however, between you and me, there must be a bigger one, but we still have to find it.|||uhm. almost every single tiny light you see in the sky at night is a star.





the pistol star is about 150 times bigger than our sun.


http://zuserver2.star.ucl.ac.uk/~apod/ap鈥?/a>|||30 Doradus in the Large Magellanic Cloud is among the biggest stars in the local group of galaxies. There must be larger stars among the trillions of other galaxies.|||Not sure if it's the biggest but Betelgeuse in Orion pulsates from 500 to 900 of our suns(about 500 light years away)|||The Sun...........|||the sun in our galaxy


the universe hmm dont know|||The sun is only the biggest star in our solar system! (It's also the only star in our solar system!)





I doubt we even know what the biggest star in the galaxy is... we haven't had enough time in human history to observe them all.





As for the universe, there could be stars i the far reaches that are huge, but we wont see the light from them for many many more years, so we wont know til then!|||That question will probably never be answered. The universe is infinite in all directions and expanding...|||in our galaxy I think it's Betelgeuse it's a red, giant star located at the left shoulder of the constellation Orion|||Well no the Sun is not the only star in the universe. (look up at night) My thoughts is that it would be impossible to say what is the Largest star in the universe because we would have to scour every galaxy in the universe, assuming that there is only one universe. (it hasn't been proven yet! lol)