Apparent magnitude 3.18 & 5.82
Spectral type K3III & B0V
Through the telescope, Albireo resolved into a double star, consisting of Albireo A (amber), and Albireo B (blue-green). The two components are considered to be one of the best double stars in the sky due to their different colors.
Medieval Arabic-speaking astronomers called Albireo minqar al-dajjah. Albireo is located at the head of the swan, and is sometimes called the "beak star".