#azelfafage

Cygnus is one of the most recognizable constellations in the northern hemisphere and one of the original 48 constellation set down by Ptolemy. In Greek mythology, Cygnus is generally seen as the swan that Zeus disguised himself as to seduce Leda, Spartan king Tyndareus's wife, who gave birth to the Gemini twins as well as Helen of Troy and Clytemnestra.

In order of brightness, the named stars are:

Deneb (α Cygni), a blue supergiant star about 2,000 light years away. It is the brightest star in Cygnus, and is one of the furthest bright stars in the sky. In about 6,700 years, it will also become the north pole star! Its name comes from the Arabic phrase Dhanab al-Dajājah meaning "tail of the hen."

Sadr (γ Cygni) is a yellow-white supergiant star about 1,800 light years away. It is the brightest of a quadruple system of stars. Its name comes from the Arabic word ṣadr meaning "chest."

Aljanah (ε Cygni) is an orange giant star, part of a binary system about 73 light years away. Its name comes from the Arabic word al janāħ meaning "the wing."

Fawaris (δ Cygni) is a blue giant star about 165 light years away. Its name comes from the Arabic word al-Fawāris meaning "the riders."

Albireo (β Cygni) is a star system consisting of an orange giant and several blue-white giant stars lying about 370 light years away. The origin of its name is unclear, but may be a transcription error in Latin.