Cygnus

Cygnus, The Swan, is a summer constellation in the UK. Deneb, which forms its tail, is its brightest star.

Summer Triangle

The Summer Triangle is an asterism best visible in the summer in the northen hemisphere. It is formed by placing imaginery lines to form a triangle between the stars Vega in the constellation Lyra, Deneb in Cygnus and Altair in Aquila.