No, it is not.
No. The biggest star ever discovered is the VY Canis Majoris, a red hypergiant with a radius of easily 2000 times bigger than that of the Sun. That is more than twice the radius of Betelgeuse. Also, the mass of VY Canis Majoris is around twice that of Betelgeuse.
Betelgeuse is much bigger than the Sun.
Yes, it has a radius about 1000 times the radius of the sun.
Here are a few:T Cephei, VV Cephei, VY Canis Majoris, NML Cygni, WOH G64, and V059 Cassiopae. ... Mu Cephei, Mu Cephei A, ... There are certainly an extremely high number of stars that are bigger than Betelgeuse in the known universe alone.
Scientists say that VY Canis Majoris is the biggest star we know so basically VY Canis Majoris is bigger than Kolob.
As of today (2009) there is no star larger than VY Canis Majoris - a galaxy is larger than VY Canis Majoris though.
Betelgeuse is one of the larger stars, while Barnard's star is just a little red dwarf star. So, yes- Betelgeuse is far larger than Barnard's.
Yes, Betelgeuse has a radius about 1200 times the size of the sun, and Antares is about 800 times the radius of the sun.
Betelgeuse is about 1,180 times larger the Sun. So Betelgeuse is about 128,620 times bigger than Earth. So as a rough approximation about 2,127,774,087,928,000 Earths could fit into Betelgeuse. That's 2 quadrillion.
Many stars are bigger, but Betelgeuse is one of them, a red giant.
if gives the sun reflection
No. Currently UY Scuti is the star estimated to be the biggest, but we are not very sure of their size; beside UY Scuti, VY Canis Majoris and a few other stars are also larger than Betelgeuse.