What is the brightest star in the constellation of Cygnus?

Cygnus is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. It is one of the most recognizable constellations of the northern summer and autumn. Its brightest star, Deneb, is one of the vertices of the asterism known as the Summer Triangle and forms the 'head' of the neck-less Northern Cross.