| City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
| Montcuq | France | Fondation La main à la pâte | 44.340 | 1.210 |
| Date | Gnomon height [cm] | Shadow length [cm] | Angle (°) |
| 01/04/2025 | 25.0 | 20.6 | 39.5 |
| 02/04/2025 | 25.0 | 20.3 | 39.1 |
| 03/04/2025 | 25.0 | 19.9 | 38.5 |
| 05/04/2025 | 25.0 | 19.5 | 38.0 |
| 07/04/2025 | 25.0 | 19.0 | 37.2 |
| 08/04/2025 | 25.0 | 18.7 | 36.8 |
| 09/04/2025 | 25.0 | 18.4 | 36.4 |
| 10/04/2025 | 25.0 | 18.2 | 36.1 |
| 15/04/2025 | 25.0 | 17.0 | 34.2 |
| 17/04/2025 | 25.0 | 16.5 | 33.4 |
| 18/04/2025 | 25.0 | 16.3 | 33.1 |
| 22/04/2025 | 25.0 | 15.4 | 31.6 |
| 23/04/2025 | 25.0 | 15.1 | 31.1 |
| 29/04/2025 | 25.0 | 14.1 | 29.4 |