| Similarity | Rank | |
|---|---|---|
| iras | 0.747 | 33102 |
| infrared | 0.724 | 15105 |
| orbit | 0.699 | 5562 |
| microscope | 0.698 | 7608 |
| binoculars | 0.698 | 8947 |
| hubble | 0.696 | 24122 |
| astronomer | 0.694 | 10859 |
| lens | 0.677 | 5407 |
| observatory | 0.673 | 13778 |
| spacecraft | 0.668 | 18307 |
| iue | 0.661 | 78584 |
| nebula | 0.651 | 26663 |
| telescopic | 0.648 | 29772 |
| asteroid | 0.646 | 25055 |
| yohkoh | 0.644 | 87506 |
| binocular | 0.641 | 18746 |
| eyepiece | 0.637 | 40674 |
| galaxy | 0.634 | 5968 |
| refractor | 0.634 | 70291 |
| optical | 0.628 | 6195 |
| wavelength | 0.626 | 8541 |
| gamma-ray | 0.625 | 42486 |
| meteosat | 0.624 | 88109 |
| magnification | 0.623 | 17276 |
| magnetosphere | 0.619 | 35041 |