| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | astronomical conferences | Europe | Major events for sharing research and networking in the field of astronomy | 1 |
| 2 | astronomical events | Europe | Astronomical events are often observed and celebrated through scientific research, public outreach, and educational activities to increase public knowledge and understanding of the universe. | 1 |
| 3 | planetarium | Europe | Planetariums are popular educational attractions for families and school groups, offering immersive experiences of the night sky and astronomy. | 1 |