Random triples
| Subject | Object |
|---|---|
| gptkb:Cassegrain_reflector | long focal length |
| gptkb:Lick_Observatory_Telescope | 6000 mm |
| gptkb:Yerkes_Observatory_Telescope | 20 meters |
| gptkb:Newtonian_telescope | varies |
| gptkb:Mars_Descent_Imager_(MARDI) | 12 mm |
| gptkb:Reflecting_telescope | varies based on design |
| gptkb:Distagon_lens | various focal lengths |
| gptkb:Herschelian_telescope | varies |
| gptkb:60-inch_Telescope | 15 meters |
| gptkb:Clarke_refractor | varies |