2021.jpg English: Comparison of the sizes of selected stars. From left to right are Cygnus OB2 #12 (blue hypergiant and luminous blue variable), V382 Carinae
OB2-12, a blue hypergiant at 250 solar radii, then yellow hypergiant V382Carinae at nearly 500 solar radii, Betelgeuse, a red supergiant star at 640 solar