What is a hypergiant star?
Q: What is a hypergiant star?
A: A hypergiant star is a star with an enormous mass and luminosity, showing signs of a very high rate of mass loss.
Q: How are hypergiants different from supergiants?
A: Hypergiants are usually larger than supergiants and are the largest stars in the universe.
Q: What is the largest hypergiant star known?
A: The hypergiant with the largest known diameter is Stephenson 2-18, which is about 2,150 times wider than the Sun.
Q: What is NML Cygni?
A: NML Cygni is another large hypergiant star that is about 1,650 times wider than the Sun.
Q: What is UY Scuti?
A: UY Scuti is a pulsating red hypergiant star that is probably larger than any other star with a radius of about 1,700 times the Sun.
Q: Why do hypergiants have a short lifespan?
A: Hypergiants have a short lifespan because of their size, even a few million years, whereas the Sun has a lifespan of around 10 billion years.
Q: Are hypergiants easy to find?
A: No, hypergiants are very hard to find.
