Mu Cephei is a red supergiant star in the constellation Cepheus. It's located at the edge of the IC 1396 nebula. It has a solar radius of 1,074.540000 and its one of the biggest known stars in the galaxy.
The spectrum of Mu Cephei has served as the M2 Ia standard by which other stars are classified since 1943.
- ↑ http://www.elitegalaxyonline.com/portfolio/largest-stars/
- ↑ http://adsabs.harvard.edu/abs/1993AAS...183.1710G