Beta Cygni or better known by the name Albireo is one of the more striking double stars, with the combination of a yellow star with a blue star. Although not thought to be a true binary system, but merely an optical double.

Beta Cygni or better known by the name Albireo is one of the more striking double stars, with the combination of a yellow star with a blue star. Although not thought to be a true binary system, but merely an optical double.
