| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what comet was seen in 1996 | 1.67 | 0.3 | 3672 | 58 |
| what comet was seen in 1997 | 1.69 | 0.3 | 6008 | 57 |
| what comet was visible in 1997 | 1.56 | 0.9 | 704 | 51 |
| what comet was visible in 1986 | 1.1 | 0.9 | 6375 | 88 |
| comet that appeared in 1997 | 0.84 | 0.1 | 118 | 58 |
| what comet was last seen in 1986 | 1.26 | 0.5 | 7214 | 13 |
| what comet was visible in the 1990s | 0.89 | 0.3 | 6492 | 84 |
| what comet was visible in the 1970s | 0.35 | 0.5 | 229 | 45 |
| what comet was visible in the 90s | 0.21 | 0.9 | 7390 | 69 |
| what comet passed earth in 1997 | 1.59 | 0.6 | 3938 | 78 |
| comet in the 1990s | 0.9 | 0.1 | 5961 | 86 |
| which comet appear after 76 years | 0.7 | 0.1 | 8885 | 69 |
| year of the comet | 1.11 | 0.4 | 572 | 94 |
| when did the comet is coming start | 0.63 | 0.2 | 918 | 8 |
| when was the first comet discovered | 1.05 | 0.8 | 3222 | 99 |
| movie year of the comet | 1.95 | 0.7 | 802 | 58 |
| when was the last comet sighting | 1.38 | 0.3 | 4233 | 39 |
| when did the comet hit earth | 1.19 | 0.9 | 8071 | 32 |
| famous comet of the 1990s | 0.23 | 1 | 5235 | 39 |
| who discovered the comet | 1.59 | 0.8 | 8659 | 81 |
