Certain astronomical classification

• Red giant in the night sky
• Celestial cool red giant
• Red giant
• Astronomical giant with a spectral letter ranking
• Chi Cygni, for one
• Cool red giant
• Comparatively cool red giant
• Celestial red giant
• Astronomer's cool giant

Wikipedia Word definitions in Wikipedia
SSTAR may refer to: Society for Sex Therapy and Research Small, sealed, transportable, autonomous reactor