Clue | Source | Date |
---|---|---|
Cool red giants | New York Times | 01 Dec 2019 |
Cool red giants | ||
Some red giants | New York Times | 12 Aug 2016 |
Some red giants | ||
Red giants in the night sky | ||
Certain red giants | ||
Red giants with zirconium oxide in their spectra | ||
Red giants | ||
Some red giants | ||
Cool red giants | ||
Some astral types | ||
Spectral types |