article: Supergiant
links: VV Cephei Rho Leonis Deneb Hertzsprung–Russell diagram Epsilon Aurigae Rigel Epsilon Pegasi Cepheid variable Polaris Zeta Cephei Betelgeuse Alnilam Jewel Box Cluster Cepheid variables Saturn Delta Canis Majoris Gamma Cygni Stellar evolution Antares Jupiter Mercury (planet)