| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| messier object m51 | 0.38 | 0.5 | 2665 | 71 | 18 |
| messier | 0.17 | 0.8 | 1923 | 65 | 7 |
| object | 0.5 | 0.7 | 2458 | 48 | 6 |
| m51 | 0.61 | 0.7 | 5160 | 16 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| messier object 51 | 0.15 | 0.7 | 7223 | 12 |
| messier object m1 | 1.61 | 0.2 | 8058 | 85 |
| messier object m42 | 0.44 | 0.6 | 4013 | 48 |
| messier objects m12 | 1.29 | 0.2 | 6014 | 77 |
| messier object m20 | 0.56 | 1 | 2929 | 44 |
| messier object map | 1.46 | 0.8 | 9491 | 28 |
| messier object 101 | 1.8 | 0.5 | 1848 | 65 |
| messier object 13 | 1.3 | 0.2 | 2993 | 21 |
| m15 messier object | 1.13 | 0.9 | 9757 | 95 |
| m13 messier object | 1.38 | 0.1 | 7355 | 44 |
| what is the first messier object m1 | 1.21 | 0.2 | 1352 | 86 |
| m18 messier object | 0.11 | 0.2 | 1959 | 22 |
| messier object 58 | 0.53 | 0.2 | 8471 | 7 |
