Deneb
Star
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Deneb is a first-magnitude star in the constellation of Cygnus. Deneb is one of the vertices of the asterism known as the Summer Triangle and the "head" of the Northern Cross. It is the brightest star in Cygnus and the 19th brightest star in the... Wikipedia
Spectral type: A2 Ia
Constellation: Cygnus
Magnitude: 1.25
Surface temperature: 8,525 K
Luminosity: 196,000 L☉
Mass: 3.779 × 10^31 kg (19 M☉)
Absolute magnitude: -8.73