High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! VV Cephei is an eclipsing binary star system located in the constellation Cepheus, approximately 2,400 light years from Earth. A red hypergiant fills the system's Roche lobe when closest to its companion blue star, the latter appearing to be on the main sequence. Matter flows from the red hypergiant onto the blue companion. VV Cephei A, the low-density hypergiant, is one of the largest stars known, and believed to be the second largest star in the Milky Way after VY Canis Majoris and third largest known after the hypergiant WOH G64 in the Large Magellanic Cloud. It is of spectral type M2 and is poorly estimated at approximately 1,600–1,900 times the Sun's radius, or approximately 2,227,200,000 to 2,644,800,000 km across.

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