| Esperanto | Deutsch | |
| observanto | Observator | ✘ |
| observatorio | Wetterwarte | ✘ |
| ↳ | Sternwarte | ✘ |
| ↳ | Observatorium | ✘ |
| ↳ | Beobachtungsstation | ✘ |
| Esperanto | Deutsch | |
| observanto | Observator | ✘ |
| observatorio | Wetterwarte | ✘ |
| ↳ | Sternwarte | ✘ |
| ↳ | Observatorium | ✘ |
| ↳ | Beobachtungsstation | ✘ |