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Albireo

star in the constellation Cygnus
Albireo A and B.

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.[1] Another blue star named Albireo B could be part of the system.

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