The bright star Deneb is part of the famous Summer Triangle asterism. Its constellation Cygnus the Swan flies across the July evening sky.Deneb or Alpha Cygni is the northernmost star in the famous Summer Triangle, a prominent asterism visible in the east on July and August evenings. Three bright stars make up the Summer Triangle. They are the brightest stars in three separate constellations. Deneb’s constellation is Cygnus the Swan. In a dark sky, you can imagine the Swan, flying along the...
