- a first-magnitude star in the constellation Cygnus.
- the brightest star in the constellation Cygnus and one of the brightest but remotest stars in the night sky. Visual magnitude: 1.25; spectral type: A2I
1867, bright star in the tail of the constellation Cygnus the Swan, from Arabic Al Dhanab al Dajajah “the Hen’s Tail.”
- A white supergiant star. It is the brightest star in the constellation Cygnus, with an apparent magnitude of 1.26. Deneb, along with Vega and Altair, form the Summer Triangle asterism. Scientific name: Alpha Cygnus. See Note at Rigel.