VY Canis Majoris is the largest star known to man. It is a red Hypergiant, located in the Milky way and measuring between 1800 to 2100 solar radii. One Radius is equal to the current radius of the Sun and it is approximately 432,450 miles (695,500 kilometers). VY Canis Majoris is so large that if our Sun were replaced by it, its surface would extend to (or maybe even pass) the orbit of Saturn. In Earth terms it would take 70 000 000 000 000 000 (70 quadrillion) Earths to fill up the VY Canis Majoris.