The stars of the Northern Cross belong to the constellation Cygnus, the swan. Deneb, at magnitude 1.25, is the brightest of the stars. It's also among the top 20 brightest stars in the sky.
Deneb marks the tail of the swan. In fact, Deneb is Arabic for "tail." At the opposite end is the star Albireo marking the head of the swan. Albireo is a popular among amateur astronomers because it appears as a beautiful yellow and blue double star through a telescope.
References:
List of Brightest Stars
Constellation Cygnus
Albireo
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