| City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
| Busteni | Romania | Scoala Gimnaziala Sanatoriala | 45.416 | 25.535 |
| Date | Gnomon height [cm] | Shadow length [cm] | Angle (°) |
| 07/04/2025 | 19.0 | 15.0 | 38.3 |
| 15/04/2025 | 15.0 | 10.6 | 35.2 |
| 22/04/2025 | 18.6 | 12.0 | 32.8 |
| 29/04/2025 | 18.0 | 10.6 | 30.5 |