| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hubble's tuning fork diagram | 0.58 | 0.7 | 7172 | 91 | 28 |
| hubble's | 0.61 | 0.7 | 8012 | 24 | 8 |
| tuning | 1.46 | 1 | 397 | 29 | 6 |
| fork | 0.93 | 0.2 | 6805 | 59 | 4 |
| diagram | 1.48 | 0.8 | 9683 | 38 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hubble's tuning fork diagram | 0.97 | 0.5 | 9204 | 89 |
