Tags: Star.
Y Sextantis (Y Sex) is a W Ursae Majoris variable eclipsing contact binary star system located roughly at 360 light years from Sun whose two component stars share a common outer layer. Because the two components share their outer layers as the components of W Ursae Majoris do they have the same stellar classification and are classified as yellow F-type main sequence dwarfs. The components take 0.419822800 days (roughly 10 hours) to revolve around common barycentre.