VV Cephei
VV Cephei is a eclipsing binary star in the Cepheus constellation. It is 5,000 light years from Earth.
VV Cephei A is one of the largest known stars, being a red supergiant. Its diameter is more than a thousand times that of the Sun.[1] It is orbited by VV Cephei B, a blue star with 13–25 times the Solar radius. If VV Cephei A were placed in the center of our Solar System, its radius would reach past the orbit of Mars and the asteroid belt.
VV Cephei Media
A visual band light curve for one of the eclipses of VV Cephei, adapted from Hopkins et al. (2015)
Relative sizes of various supergiants and hypergiant stars, including blue hypergiant Cygnus OB2-12, yellow hypergiant V382 Carinae, red supergiants Betelgeuse and VV Cephei A, and red hypergiant VY Canis Majoris