What is the biggest knowing star in the universe?

Question

?

Answer 1

According to this website...
http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question21.html

Answer 2

Godzilla? by the way, biggest and most massive are two different things. The four largest known red supergiants in the Galaxy are Mu Cephei, KW Sagitarii, V354 Cephei, and KY Cygni, which all have radii about 1500 times that of the sun (about 7 astronomical units, or 7 times as far as the Earth is from the sun). The radius of most red giants is between 200 and 800 times that of the sun, which is still enough to reach from the sun to Earth and beyond. Also notable are Antares and Betelgeuse. Re: LBV 1806-20 I don't see any information since 2004, and at that time, the team making the presentation still had uncertainties about this item, so I don't know if it can be categorized as a "known" star.

Answer 3

The are 2 ways to answer this question: 1) the largest diameter star or 2) the star with the greatest mass.

1) The largest diameter stars are the red giant stars KW Sagitarri, V354 Cephei and KY Cygni. Each is 1,500 times the diameter of the sun (but only 25 times the mass).

2) The greatest mass star known is the Pistol star which has 100 times the mass of our sun. Of course we haven't found all the stars in the universe but theoretically, the largest mass a star can get is between 100 to 200 solar masses.

Answer 4

The largest known star (in terms of mass and brightness) is called the Pistol Star. It is believed to be 100 times as massive as our Sun, and 10,000,000 times as bright! In 1995, it was suggested that the Pistol Star was so massive it was throwing off the mass that actually created the Pistol Nebula. The Pistol Star lies near the Milky Way's hot and violent, but metal-rich galactic center, deep within its central bulge. It produces 10 million times as power as the Sun. Here are a couple of pictures of it:

http://upload.wikimedia.org/wikipedia/commons/8/80/Pistol_star_and_nebula.jpg
http://www.ad-loznica.org.yu/slike%20dopisi/2005/masivne%20zvezde1.jpg
http://www.hep.princeton.edu/~mcdonald/e144/1297scicit3.gif
http://images.astronet.ru/pubd/2006/11/13/0001217716/iotrue_galileo_big.preview.jpg
http://www.sciencedaily.com/images/2004/01/040106074012.jpg

Answer 5

The largest known star (in terms of mass and brightness) is called the Pistol Star. It is believed to be 100 times as massive as our Sun, and 10,000,000 times as bright!

Answer 6

There are billions of stars in the Universe, and they are sized up by color.
A red Star is the smaller, next to a pulse star or dwarf star,
the next biggest is a wight star, then the biggest stars are bright blue, blue stars are giants.
An at the distance they are from us, makes very hard to measure them to see which is the biggest.
Now if you seed brightest, then in the night sky I could give you it's name.

Answer 7

The sun