The Swan Constellation, also known as Cygnus, is a northern sky constellation that is visible in the summer months. It is one of the 88 modern constellations and is represented by a swan flying across the sky. The brightest star in the constellation is Deneb, which is located at the tail of the swan. The constellation is also home to several deep-sky objects, including the North America Nebula and the Veil Nebula.