| Similarity | Rank | |
|---|---|---|
| comets | 0.877 | 39333 |
| meteor | 0.872 | 29787 |
| comet | 0.834 | 23908 |
| asteroids | 0.805 | 33535 |
| fireballs | 0.798 | 67134 |
| meteorites | 0.784 | 55968 |
| fireball | 0.770 | 41451 |
| sunspots | 0.760 | 77238 |
| ISON | 0.753 | 79144 |
| suns | 0.753 | 34271 |
| planets | 0.752 | 9219 |
| supernova | 0.748 | 46579 |
| asteroid | 0.747 | 23057 |
| moon's | 0.746 | 59912 |
| galaxies | 0.746 | 19979 |
| orbiting | 0.742 | 32947 |
| moon | 0.740 | 4832 |
| quasars | 0.739 | 93060 |
| nebulae | 0.736 | 81004 |
| moons | 0.736 | 23992 |
| craters | 0.733 | 38883 |
| sky | 0.732 | 2973 |
| meteorite | 0.732 | 40656 |
| supernovae | 0.724 | 82066 |
| thunderstorms | 0.717 | 32284 |