Related Clues:

• Spectral type
• Red giant of the galaxy
• Cool red giant
• Relatively cool red giant
• Red giant relative
• Comparatively cool red giant
• Certain astronomical classification
• Red giant variety
• Astronomical giant with a spectral letter ranking
• ___ Optics (telescope maker)
• Chi Cygni, for one
• Red giant
• Red giant with an abundance of carbon
• Red giant in the night sky
• Relatively cool heavenly body