You searched for " astronomical observation".
| Title | City | Countries | Start Date |
|---|---|---|---|
| Light pollution in the city | Rimavská Sobota | Slovakia | March 12, 2019 |
| Astronomy in Rimavská Sobota | Rimavská Sobota | Slovakia | May 10, 2019 |
| Night sky and light polliotion | Suiz | Egypt | June 23, 2019 |