Westerlund 1-26

Westerlund 1-26 (also called Westerlund BKS AS, officially named Westerlund 1 W26) is a star.  It is a red supergiant in the Westerlund 1 super star cluster. Its radius is ~1,165 - 1,221 solar radii, making it one of the largest stars known.

References

Category:Red giants