1.25
Apparent Mag2,615
Distance (ly)A2Ia
Spectral Type8,525
Temperature (K)Deneb is the brightest star in Cygnus and one of the most luminous stars known. Despite being over 2,600 light-years away, it remains one of the brightest stars in the sky due to its extraordinary luminosity of nearly 200,000 Suns.
Stellar Data
Apparent Magnitude1.25
Absolute Magnitude-8.38
Distance2,615 light-years
Spectral TypeA2Ia
Temperature8,525 K
Luminosity196,000 L☉
Radius203 R☉
Mass19 M☉
Right Ascension20h 41m 25.9s
Declination+45° 16′ 49.2″
ConstellationCygnus
Notable Facts
- Deneb is about 196,000 times more luminous than the Sun
- It is one of the most distant first-magnitude stars visible to the naked eye
- Deneb forms one vertex of the Summer Triangle along with Vega and Altair