VV Cephei is a red hypergiant and blue main sequence star binary system in the Constellation Cepheus. The primary component, VV Cephei A is a very historic star, as it was known as the largest star in the late 90s and early 2000s. VV Cephei B is slowly distorting the shape of A, as it may be more massive. The size of VV Cephei A is very uncertain, but current models suggest it is 1,060 Solar Radii.
Astronomical data
VV Cephei A
Radius (in Solar Radii): 1,060 R☉
Diameter (in Kilometers): 1,475,520,000 km
Mass (in Solar Masses): 2.5 M☉
Distance (in Light Years): 3,319 ly
Spectral type: M2 lab (Red)
VV Cephei B
Radius (in Solar Radii): 13 R☉
Diameter (in Kilometers): 18,096,000 km
Mass (in Solar Masses): 18.6 M☉
Spectral type: B0-2 V (Blue)
Gallery
Interesting binary system of stars..