VY Canis Majoris is absolutely enormous compared to our Sun. Here's a breakdown:

* VY Canis Majoris:

* Radius: 1,800 - 2,100 times the Sun's radius

* Volume: billions of times the Sun's volume

* Our Sun:

* Radius: 1 solar radius

* Volume: 1 solar volume

Imagine this: If you were to shrink the Sun down to the size of a basketball, VY Canis Majoris would be as big as the entire orbit of the Earth around the Sun!

Important Note: VY Canis Majoris is a red hypergiant, a type of star that is extremely large, luminous, and very short-lived.