| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| former planets in the solar system | 0.92 | 0.6 | 4263 | 99 |
| list of former planets | 0.49 | 0.5 | 1094 | 50 |
| planets out of the solar system | 0.84 | 0.6 | 2334 | 51 |
| planets out of our solar system names | 1.41 | 0.1 | 4992 | 100 |
| undiscovered planets in our solar system | 0.64 | 0.5 | 606 | 59 |
| planets in other solar systems discovered | 0.82 | 0.6 | 2658 | 29 |
| wikipedia planets in our solar system | 1.16 | 0.7 | 7057 | 49 |
| planet names out of our solar system | 1.3 | 0.6 | 9060 | 28 |
| solar system known planets | 1.06 | 0.2 | 5983 | 65 |
| what planet left the solar system | 1.42 | 0.3 | 1477 | 76 |
