This article needs more sources for reliability. (January 2019) (Learn how and when to remove this template message)
Albireo, also called Beta Cygni, is a binary star found in the Cygnus constellation. It consists of two stars, a yellow giant called Albireo Aa and a blue main sequence star named Albireo Ac. Another blue star named Albireo B could be part of the system.
References[change | change source]