Random triples
| Subject | Object |
|---|---|
| gptkb:Grenchen_Observatory | planets |
| gptkb:Grenchen_Observatory | variable stars |
| gptkb:Mount_Dandenong_Observatory | celestial objects |
| gptkb:Grenchen_Observatory | deep-sky objects |
| gptkb:Grenchen_Observatory | comets |
| gptkb:Long_Mynd_Observatory | amateur astronomy |
| gptkb:Goldendale_Observatory | Night sky viewing |