| modern astronomy | 5 |
| observational astronomy | 5 |
| theoretical astronomy | 4 |
| infrared astronomy | 1 |
| radio astronomy | 1 |
| stagnant state | 0.25 |
| study different phenome… | 0.55 |
| mean to somebody | 0.53 |
| refer to the study of o… | 0.51 |
| study celestial objects | 0.49 |
| binocular uk | 0.48 |
| be a branch of science | 0.47 |
| offer many insights | 0.46 |
| ask more questions | 0.43 |
| join hand | 0.43 |
| try to come up answer | 0.40 |
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| interesting | 0.59 |
| true | 0.36 |
| fun | 0.35 |
| popular | 0.33 |
| synonymous | 0.32 |
| accessible | 0.25 |
| smaller | 0.25 |
| two main binoculars | 0.25 |
| underdeveloped | 0.25 |
| easy | 0.20 |
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| science | 0.68 |
| natural science | 0.50 |
| hobby | 0.38 |
| physics | 0.36 |
| recognized science | 0.25 |
| respected science | 0.16 |
| concerned | 0.67 |
| related | 0.56 |
| used to describe qualit… | 0.34 |
| studied | 0.34 |
| treated under latin nam… | 0.32 |
| separated by western 17… | 0.32 |
| concerned to describe o… | 0.32 |
| done in such poor light… | 0.31 |
| based on observation | 0.29 |
| used to refer to same s… | 0.25 |
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