16.79
Apparent Mag15,000
Distance (ly)M5Ia
Spectral Type3,300
Temperature (K)Westerlund 1-26 is a red supergiant in the massive star cluster Westerlund 1 and one of the largest known stars.
Stellar Data
Apparent Magnitude16.79
Absolute Magnitude-7.5
Distance15,000 light-years
Spectral TypeM5Ia
Temperature3,300 K
Luminosity380,000 L☉
Radius1530 R☉
Mass17 M☉
Right Ascension16h 47m 05.4s
Declination-45° 50′ 36.8″
ConstellationAra
Notable Facts
- Westerlund 1-26 is one of the largest stars known by radius
- It resides in the massive Westerlund 1 cluster
- The star is about 1,530 times the radius of the Sun