"VY Canis Majoris (VY CMa) is a red hypergiant located in the constellation Canis Major. It is one of the largest stars (at one time the largest known) and also one of the most luminous of its type"
"If placed at the center of the Solar System, VY Canis Majoris's surface would extend beyond the orbit of Jupiter, although there is still considerable variation in estimates of the radius, with some making it larger than the orbit of Saturn."