primary mirror material
6
triples
GPTKB property
Random triples
| Subject | Object |
|---|---|
| gptkb:Palomar_20-inch_telescope | gptkb:glass |
| gptkb:GEMINI-Visible | aluminum |
| gptkb:GEMINI_North | aluminum coated glass |
| gptkb:Lasser_telescope | gptkb:glass |
| gptkb:P48_Telescope | gptkb:glass |
| gptkb:Hale_Telescope | gptkb:glass |