What the biggest star?

Answer 1

The most massive known is generally accepted to be the Pistol Star, which has a mass about 100-150 times that of the Sun, and is about 10 million times brighter

Answer 2

The most massive and brightest star known is 5 million to 40 million times more luminous than the Earth's own star, the sun, and about 150 times more massive, but this stellar giant is destined to live a short life and then to erupt in a supernova explosion.

Astronomer Stephen Eikenberry of the University of Florida said the star, known as LBV1806-20, is on the edge of a cluster of stars on the far side of the Milky Way, some 45,000 light-years from the solar system.

In a presentation at the national meeting of the American Astronomical Society, Eikenberry said the star burns at a temperature of 30,000 degrees to 60,000 degrees and has ballooned out to a diameter 200 times that of the sun.

The huge star actually defies theories of massive star formation, he said. Usually massive stars grow no bigger than about 100 solar masses. At that point, the energy outflow is so powerful that additional material is blown away.

LBV1806-20, however, formed near where a supernova exploded in the past. Eikenberry said this explosion may have compressed gas and dust, enabling the star to grow far beyond the usual size of stellar giants.

Answer 3

http://www.eso.org/outreach/press-rel/pr-1997/pr-05-97.html
An international team of astronomers has used large telescopes in Chile and Australia to measure the biggest star in the sky. The star, designated R Doradus , is of the so-called red giant type and is located in the southern constellation of Dorado. Its apparent diameter (i.e., the size which the star appears to have when seen from the Earth) is larger than any other so far observed, except for the Sun. In particular, it exceeds by more than 30 % that of Betelgeuse , which for the past 75 years has held the title of star with the largest apparent size.

Answer 4

Sorry 'Cooks n Cars' but your info is a little outdated.

The largest currently known star is LBV1806-20. It was determined in 2004 that LBV1806-20 was not a cluster system, thus thrusting it to the top of the list as the most massive star in our known universe. It is aproximately 150+ times the mass of our Sun and is 40 million times brighter. LBV1806-20 is 45,000 light years away from us in the direction of the center of our galaxy (it lies on the opposing side from our solar system in the Milky Way).

By comparison: the Pistol Star is aproximately 100 times the mass of our Sun and 10 million times brighter.

Answer 5

VV Cephei A, the supergiant, is one of the largest stars known. It is of spectral type M2 and is about 1600-1900 times the Sun's diameter. If it replaced the Sun in our solar system, it would extend to the orbit of Saturn. It is 275,000-575,000 times as luminous as the Sun. The mass of the star is unknown. The mass estimated from its orbital motion is about 100 solar masses. One other hand, the mass estimated from its luminosity is about 25-40 solar masses.

You could get more information from the link below...

Answer 6

VY Canis Mojoris

Answer 7

the largest known star is the star know as bettelgeuse

Answer 8

No one know, the universe is too large for us.