CSTAR
| Date | Clue |
|---|---|
| 2015-12-24 | Red giant type |
| 2013-04-24 | Astronomical red giant |
| 2012-07-06 | Red giant |
| 2011-01-21 | ___ Optics (telescope maker) |
| 2009-09-12 | Red giant variety |
| 2008-08-30 | Cool red giant |
| 2004-11-10 | Spectral type |
| Date | Clue |
|---|---|
| 2015-12-24 | Red giant type |
| 2013-04-24 | Astronomical red giant |
| 2012-07-06 | Red giant |
| 2011-01-21 | ___ Optics (telescope maker) |
| 2009-09-12 | Red giant variety |
| 2008-08-30 | Cool red giant |
| 2004-11-10 | Spectral type |