Hà Đông, Việt Nam
| Flag | City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
|---|---|---|---|---|---|
 |
Hà Đông | Việt Nam | Trần Hưng Đạo Hà Đông High school | 20.943 | 105.758 |
| Date | Gnomon | Shadow | Angle |
|---|---|---|---|
| 21 March 2019 | 97.1 cm | 37.1 cm | 20.9 ° |
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