2.23
Apparent Mag1,800
Distance (ly)F8Iab
Spectral Type5,790
Temperature (K)Sadr sits at the center of the Northern Cross asterism in Cygnus. It is a yellow-white supergiant surrounded by the emission nebula IC 1318.
Stellar Data
Apparent Magnitude2.23
Absolute Magnitude-6.12
Distance1,800 light-years
Spectral TypeF8Iab
Temperature5,790 K
Luminosity33,000 L☉
Radius150 R☉
Mass12.1 M☉
Right Ascension20h 22m 13.7s
Declination+40° 15′ 24.0″
ConstellationCygnus
Notable Facts
- Sadr lies at the intersection of the Northern Cross
- It is surrounded by the emission nebula IC 1318
- The name means breast in Arabic