Hypergiant simply means the largest of the large stars; there is no exact definition as to its size. For comparison, the largest stars (in diameter) have diameters 1000-2000 times that of the Sun; the most massive stars have 150-200 times the mass of the Sun; and the brightest stars (in absolute terms, not as seen by us) are estimated to have about 5 million times the brightness of the Sun.
Hypergiant.
A Hypergiant
It can range from 0.25 that of the Sun in a red dwarf to over 2,000 times that of the Sun in a hypergiant.
Yes. 2nd largest star in the galaxy.
A red hypergiant star could have a radius of up to 2000 solar radii or more, where one solar radius is the radius of our sun. If at the centre of our solarsystem, a hypergiant could extend out as far as Jupiter or more.
VY Canis Majoris is the largest known star. It is a red hypergiant star.
It's a Class M Hypergiant
A Red Giant/Supergiant/Hypergiant, depending on its size.
the Universe is a big place, and there's no way we can possibly know what the biggest star is. However, the biggest star that we do know of is called: VY Canis Majoris. Which is a red hypergiant star in the Canis Major constellation, located about 5,000 light-years from Earth.
The hottest star in the universe is the blue hypergiant star known as R136a1, with a surface temperature of about 40,000 degrees Celsius.
The Universe is a big place, and there's no way we can possibly know what the biggest star is. However, the biggest star that we do know of is called: VY Canis Majoris. Which is a red hypergiant star in the Canis Major constellation, located about 5,000 light-years from Earth.
Hypergiants are super luminous supergiants. It isn't all about sheer size. Eta Carinae is a hypergiant but it is smaller than the supergiant Antares. This is due to the fact that Eta Carinae is about 60 times as luminous as Antares and 10 times as massive. Although size doesn't matter, the largest star VY Canis Majoris is a Hypergiant.